
Threshold of Primordial Black Hole Formation against Velocity Dispersion in MatterDominated Era
Tomohiro Harada, Kazunori Kohri, Misao Sasaki, Takahiro Terada, ChulMoon Yoo
25 11 2022

Thakurta metric does not describe a cosmological black hole
Peerreviewed
Tomohiro Harada, Hideki Maeda, Takuma Sato
Physics Letters B
10 2022

Complete classification of Friedmann–Lemaître–Robertson–Walker solutions with linear equation of state: parallelly propagated curvature singularities for general geodesics
Peerreviewed
Tomohiro Harada, Takahisa Igata, Takuma Sato, Bernard Carr
Classical and Quantum Gravity39
(
14
)
145008

145008
21 7 2022

Primordial black hole formation from massless scalar isocurvature
Peerreviewed
ChulMoon Yoo, Tomohiro Harada, Shin'ichi Hirano, Hirotada Okawa, Misao Sasaki
PHYSICAL REVIEW D105
(
10
)
5 2022

Backreaction of mass and angular momentum accretion on black holes: General formulation of metric perturbations and application to the Blandford–Znajek process
Peerreviewed
Masashi Kimura, Tomohiro Harada, Atsushi Naruko, Kenji Toma
Progress of Theoretical and Experimental Physics2021
(
9
)
7 9 2021

Stability of small charged antide Sitter black holes in the Robin boundary
Peerreviewed
Takuya Katagiri, Tomohiro Harada
Classical and Quantum Gravity38
(
13
)
135026

135026
12 7 2021

Spins of Primordial Black Holes Formed in the Radiationdominated Phase of the Universe: Firstorder Effect
Peerreviewed
Tomohiro Harada, ChulMoon Yoo, Kazunori Kohri, Yasutaka Koga, Takeru Monobe
The Astrophysical Journal
19 2 2021

The First Three Seconds: a Review of Possible Expansion Histories of the Early Universe
Peerreviewed
Tomohiro Harada
The Open Journal of Astrophysics4
(
1
)
29 1 2021

Abundance of primordial black holes in peak theory for an arbitrary power spectrum
Peerreviewed
ChulMoon Yoo, Tomohiro Harada, Shin’ichi Hirano, Kazunori Kohri
Progress of Theoretical and Experimental Physics2021
(
1
)
26 1 2021

Dynamical transition from a naked singularity to a black hole
Peerreviewed
Kenta Hioki, Tomohiro Harada
International Journal of Modern Physics A35
(
31
)
10 11 2020

Thinshell wormholes in Einstein and Einstein–Gauss–Bonnet theories of gravity
Peerreviewed
Takafumi Kokubu, Tomohiro Harada
Universe6
(
11
)
11 2020

Sonic point and photon surface
Peerreviewed
Masataka Tsuchiya, Chul Moon Yoo, Yasutaka Koga, Tomohiro Harada
Physical Review D102
(
4
)
15 8 2020

Threshold of primordial black hole formation in nonspherical collapse
Peerreviewed
Chul Moon Yoo, Tomohiro Harada, Hirotada Okawa
Physical Review D102
(
4
)
15 8 2020

Extremal Kerr white holes as a source of ultrahigh energy particles
Peerreviewed
Mandar Patil, Tomohiro Harada
Physical Review D102
(
2
)
15 7 2020

Uniqueness of static, isotropic lowpressure solutions of the Einstein–Vlasov system
Peerreviewed
Maximilian Thaller, Tomohiro Harada
Letters in Mathematical Physics110
(
7
)
1877

1901
1 7 2020

Escape probability of a photon emitted near the black hole horizon
Peerreviewed
Kota Ogasawara, Takahisa Igata, Tomohiro Harada, Umpei Miyamoto
PHYSICAL REVIEW D101
(
4
)
2 2020

Bursts of particle creation in gravitational collapse to a horizonless compact object
Peerreviewed
Takafumi Kokubu, Tomohiro Harada
Physical Review D100
(
8
)
14 10 2019

Stability of null orbits on photon spheres and photon surfaces
Peerreviewed
Yasutaka Koga, Tomohiro Harada
Physical Review D100
(
6
)
23 9 2019

Space gravitationalwave antennas DECIGO and BDECIGO
Seiji Kawamura, Takashi Nakamura, Masaki Ando, Naoki Seto, Tomotada Akutsu, Ikkoh Funaki, Kunihito Ioka, Nobuyuki Kanda, Isao Kawano, Mitsuru Musha, Kazuhiro Nakazawa, Shuichi Sato, Takeshi Takashima, Takahiro Tanaka, Kimio Tsubono, Jun'ichi Yokoyama, Kazuhiro Agatsuma, Koh Suke Aoyanagi, Koji Arai, Akito Araya, Naoki Aritomi, Hideki Asada, Yoichi Aso, Dan Chen, Takeshi Chiba, Toshikazu Ebisuzaki, Satoshi Eguchi, Yumiko Ejiri, Motohiro Enoki, Yoshiharu Eriguchi, Masa Katsu Fujimoto, Ryuichi Fujita, Mitsuhiro Fukushima, Toshifumi Futamase, Rina Gondo, Tomohiro Harada, Tatsuaki Hashimoto, Kazuhiro Hayama, Wataru Hikida, Yoshiaki Himemoto, Hisashi Hirabayashi, Takashi Hiramatsu, Feng Lei Hong, Hideyuki Horisawa, Mizuhiko Hosokawa, Kiyotomo Ichiki, Takeshi Ikegami, Kaiki T. Inoue, Hideki Ishihara, Takehiko Ishikawa, Hideharu Ishizaki, Hiroyuki Ito, Yousuke Itoh, Kiwamu Izumi, Shinya Kanemura, Nobuki Kawashima, Fumiko Kawazoe, Naoko Kishimoto, Kenta Kiuchi, Shiho Kobayashi, Kazunori Kohri, Hiroyuki Koizumi, Yasufumi Kojima, Keiko Kokeyama, Wataru Kokuyama, Kei Kotake, Yoshihide Kozai, Hiroo Kunimori, Hitoshi Kuninaka, Kazuaki Kuroda, Sachiko Kuroyanagi, Kei Ichi Maeda, Hideo Matsuhara, Nobuyuki Matsumoto, Yuta Michimura, Osamu Miyakawa, Umpei Miyamoto, Shinji Miyoki, Mutsuko Y. Morimoto, Toshiyuki Morisawa, Shigenori Moriwaki, Shinji Mukohyama, Shigeo Nagano, Kouji Nakamura, Hiroyuki Nakano, Kenichi Nakao, Shinichi Nakasuka, Yoshinori Nakayama, Erina Nishida, Atsushi Nishizawa, Yoshito Niwa, Taiga Noumi, Yoshiyuki Obuchi, Naoko Ohishi, Masashi Ohkawa, Kenshi Okada, Norio Okada, Koki Okutomi, Kenichi Oohara, Norichika Sago
International Journal of Modern Physics D28
(
12
)
1 9 2019

Erratum: Spins of primordial black holes formed in the matterdominated phase of the Universe (Physical Review D (2017) 96 (083517) DOI: 10.1103/PhysRevD.96.083517)
Peerreviewed
Tomohiro Harada, Chul Moon Yoo, Kazunori Kohri, Ken Ichi Nakao
Physical Review D99
(
6
)
15 3 2019

Particle creation in gravitational collapse to a horizonless compact object
Peerreviewed
Tomohiro Harada, Vitor Cardoso, Daiki Miyata
Physical Review D99
(
4
)
15 2 2019

Gravastar formation: What can be the evidence of a black hole?
Peerreviewed
Ken Ichi Nakao, Chul Moon Yoo, Tomohiro Harada
Physical Review D99
(
4
)
15 2 2019

Effect of inhomogeneity on primordial black hole formation in the matter dominated era
Takafumi Kokubu, Koutarou Kyutoku, Kazunori Kohri, Tomohiro Harada
Physical Review D98
(
12
)
15 12 2018

Primordial black hole abundance from random Gaussian curvature perturbations and a local density threshold
Peerreviewed
Chul Moon Yoo, Tomohiro Harada, Jaume Garriga, Kazunori Kohri
Progress of Theoretical and Experimental Physics2018
(
12
)
1 12 2018

Energy emission from a high curvature region and its backreaction
Peerreviewed
Takafumi Kokubu, Sanjay Jhingan, Tomohiro Harada
Physical Review D97
(
10
)
104014
15 5 2018

On the stability of a superspinar
Peerreviewed
Ken ichi Nakao, Pankaj S. Joshi, Jun Qi Guo, Prashant Kocherlakota, Hideyuki Tagoshi, Tomohiro Harada, Mandar Patil, Andrzej Królak
Physics Letters, Section B: Nuclear, Elementary Particle and HighEnergy Physics780
410

413
10 5 2018

Complete conformal classification of the FriedmannLemaitreRobertsonWalker solutions with a linear equation of state
Peerreviewed
Tomohiro Harada, B. J. Carr, Takahisa Igata
Classical and Quantum Gravity35
(
10
)
105011

105011
12 4 2018

PBH abundance from random Gaussian curvature perturbations and a local density threshold
Chulmoon Yoo, Tomohiro Harada, Jaume Garriga, Kazunori Kohri
Proceedings of the 28th Workshop on General Relativity and Gravitation in Japan, JGRG 20182
409

425
2018

Uniqueness of static, isotropuc lowpressure solutions of the EinsteinVlasov system
Tomohiro Harada
Proceedings of the 28th Workshop on General Relativity and Gravitation in Japan, JGRG 20183
33

34
2018

Rotating accretion flows in D dimensions  sonic points, critical points and photon spheres
Peerreviewed
Yasutaka Koga, Tomohiro Harada
Proceedings of the 28th Workshop on General Relativity and Gravitation in Japan, JGRG 20182
(
2
)
36

44
2018

Spins of primordial black holes formed in the matterdominated phase of the Universe
Peerreviewed
Tomohiro Harada, ChulMoon Yoo, Kazunori Kohri, KenIchi Nakao
PHYSICAL REVIEW D96
(
8
)
083517
10 2017

Escape probability of the superPenrose process
Peerreviewed
Kota Ogasawara, Tomohiro Harada, Umpei Miyamoto, Takahisa Igata
PHYSICAL REVIEW D95
(
12
)
124019
6 2017

3D simulation of spindle gravitational collapse of a collisionless particle system
Peerreviewed
ChulMoon Yoo, Tomohiro Harada, Hirotada Okawa
Classical and Quantum Gravity34
(
10
)
105010
24 4 2017

PBH abundance from the random Gaussian curvature perturbation and a local density threshold
Chulmoon Yoo, Tomohiro Harada, Jaume Garriga, Kazunori Kohri
Proceedings of the 27th Workshop on General Relativity and Gravitation in Japan, JGRG 20171
239

249
2017

Light curves of light rays passing through a wormhole
Peerreviewed
Naoki Tsukamoto, Tomohiro Harada
PHYSICAL REVIEW D95
(
2
)
024030
1 2017

PRIMORDIAL BLACK HOLE FORMATION IN THE MATTERDOMINATED PHASE OF THE UNIVERSE
Peerreviewed
Tomohiro Harada, Chulmoon Yoo, Kazunori Kohri, Kenichi Nakao, Sanjay Jhingan
ASTROPHYSICAL JOURNAL833
(
1
)
61

61
12 2016

Selfsimilar motion of a NambuGoto string
Peerreviewed
Takahisa Igata, Tsuyoshi Houri, Tomohiro Harada
PHYSICAL REVIEW D94
(
6
)
064029
9 2016

Spherical and nonspherical models of primordial black hole formation: exact solutions
Peerreviewed
Tomohiro Harada, Sanjay Jhingan
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS2016
(
9
)
093E04
9 2016

Correspondence between sonic points of ideal photon gas accretion and photon spheres
Peerreviewed
Yasutaka Koga, Tomohiro Harada
PHYSICAL REVIEW D94
(
4
)
044053
8 2016

Consistent analytic approach to the efficiency of collisional Penrose process
Peerreviewed
Tomohiro Harada, Kota Ogasawara, Umpei Miyamoto
PHYSICAL REVIEW D94
(
2
)
024038
7 2016

Vacuum excitation by sudden appearance and disappearance of a Dirichlet wall in a cavity
Peerreviewed
Tomohiro Harada, Shunichiro Kinoshita, Umpei Miyamoto
PHYSICAL REVIEW D94
(
2
)
025006
7 2016

Infinite efficiency of the collisional Penrose process: Can a overspinning Kerr geometry be the source of ultrahighenergy cosmic rays and neutrinos?
Peerreviewed
Mandar Patil, Tomohiro Harada, Kenichi Nakao, Pankaj S. Joshi, Masashi Kimura
PHYSICAL REVIEW D93
(
10
)
5 2016

High efficiency of collisional Penrose process requires heavy particle production
Peerreviewed
Kota Ogasawara, Tomohiro Harada, Umpei Miyamoto
PHYSICAL REVIEW D93
(
4
)
044054
2 2016

Does the GaussBonnet term stabilize wormholes?
Peerreviewed
Takafumi Kokubu, Hideki Maeda, Tomohiro Harada
Classical and Quantum Gravity32
(
23
)
235021
17 11 2015

Negative tension branes as stable thin shell wormholes
Peerreviewed
Takafumi Kokubu, Tomohiro Harada
Class. Quant. Grav.32
(
23
)
235021
11 2015

Timescale for transPlanckian collisions in Kerr spacetime
Peerreviewed
Mandar Patil, Pankaj S. Joshi, Kenichi Nakao, Masashi Kimura, Tomohiro Harada
EPL110
(
3
)
30004
5 2015

Separate universe problem: 40 years on
Peerreviewed
B. J. Carr, Tomohiro Harada
PHYSICAL REVIEW D91
(
8
)
084048
4 2015

Cosmological longwavelength solutions and primordial black hole formation
Peerreviewed
Tomohiro Harada, ChulMoon Yoo, Tomohiro Nakama, Yasutaka Koga
PHYSICAL REVIEW D91
(
8
)
084057
4 2015

Vacuum excitation by sudden (dis)appearance of a dirichlet wall in a cavity
Umpei Miyamoto, Tomohiro Harada, Shunichiro Kinoshita
Proceedings of the 25th Workshop on General Relativity and Gravitation in Japan, JGRG 20155
1296

1300
2015

Highvelocity collision of two general geodesic particles around a Kerr black hole
Peerreviewed
Tomohiro Harada, Masashi Kimura
The 13th Marcel Grossmann Meeting: On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories  Proceedings of the MG13 Meeting on General Relativity, 2012
(
210699
)
1395

1397
2015

No rotating star solutions of a perfect fluid in projectable HoravaLifshitz gravity
Peerreviewed
Naoki Tsukamoto, Tomohiro Harada
The 13th Marcel Grossmann Meeting: On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories  Proceedings of the MG13 Meeting on General Relativity, 2012
(
210699
)
1131

1133
2015

Highvelocity collision of an isco particle around a Kerr black hole
Peerreviewed
Tomohiro Harada, Masashi Kimura
The 13th Marcel Grossmann Meeting: On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories  Proceedings of the MG13 Meeting on General Relativity, 2012
(
210699
)
1388

1390
2015

時空特異点とトポロジー～宇宙の因果～
Invited
原田知広, 椎野克
数理科学第53巻
(
1
)
32

37
1 2015

How small can an overspinning body be in general relativity?
Peerreviewed
Kenichi Nakao, Masashi Kimura, Tomohiro Harada, Mandar Patil, Pankaj S. Joshi
PHYSICAL REVIEW D90
(
12
)
124079
12 2014

Black holes as particle accelerators: a brief review
Peerreviewed
Tomohiro Harada, Masashi Kimura
Class. Quant. Grav.31
(
24
)
243001
11 2014

Investigating formation condition of primordial black holes for generalized initial perturbation profiles
Tomohiro Nakama, Tomohiro Harada, A. G. Polnarev, Jun'ichi Yokoyama
30 1 2014

21aSB4 スペース重力波アンテナDECIGO計画(55) : DECIGO/DPFの概要(21aSB 重力波(KAGRA,DECIGO,TOBA,検出器),宇宙線・宇宙物理領域)
安東 正樹, 神田 展行, 辻川 信二, 常定 芳基, 豊嶋 守生, 鳥居 泰男, 中尾 憲一, 中澤 知洋, 中須賀 真一, 中野 寛之, 長野 重夫, 中村 康二, 井岡 邦仁, 中山 宜典, 西澤 篤志, 西田 恵里奈, 西山 和孝, 丹羽 佳人, 能見 大河, 橋本 樹明, 端山 和大, 原田 知広, 疋田 渉, 高島 健, 姫本 宣朗, 平林 久, 平松 尚志, 福嶋 美津広, 藤田 龍一, 藤本 眞克, 二間瀬 敏史, 細川 瑞彦, 堀澤 秀之, 前田 恵一, 横山 順一, 松原 英雄, 松本 伸之, 道村 唯太, 宮川 治, 宮本 雲平, 三代木 伸二, 向山 信治, 森澤 理之, 森本 睦子, 森脇 成典, 阿久津 智忠, 八木 絢外, 山川 宏, 山崎 利孝, 山元 一広, 吉田 至順, 吉野 泰造, 柳 哲文, 若林 野花, 武者 満, 上田 暁俊, 麻生 洋一, 新谷 昌人, 坂井 真一郎, 川村 静児, 青柳 巧介, 我妻 一博, 浅田 秀樹, 新井 宏二, 池上 健, 石川 毅彦, 石崎 秀晴, 石原 秀樹, 和泉 究, 市來 淨與, 瀬戸 直樹, 伊東 宏之, 伊藤 洋介, 井上 開輝, 植田 憲一, 牛場 崇文, 歌島 昌由, 江口 智士, 江尻 悠美子, 榎 基宏, 戎崎 俊一, 中村 卓史, 江里口 良治, 大石 奈緒子, 大河 正志, 大橋 正健, 大原 謙一, 大渕 喜之, 岡田 健志, 岡田 則夫, 奥富 弘基, 河島 信樹, 坪野 公夫, 川添 史子, 河野 功, 木内 建太, 岸本 直子, 國中 均, 國森 裕生, 黒田 和明, 黒柳 幸子, 小泉 宏之, 洪 鋒雷, 佐藤 修一, 郡 和範, 穀山 渉, 苔山 圭以子, 古在 由秀, 小嶌 康史, 固武 慶, 小林 史歩, 権藤 里奈, 西條 統之, 齊藤 遼, 田中 貴浩, 阪上 雅昭, 阪田 紫帆里, 佐合 紀親, 佐々木 節, 佐藤 孝, 柴田 大, 柴田 和憲, 正田 亜八香, 真貝 寿明, 末正 有, 船木 一幸, 杉山 直, 鈴木 理恵子, 諏訪 雄大, 宗宮 健太郎, 祖谷 元, 高野 忠, 高橋 走, 高橋 慶太郎, 高橋 弘毅, 高橋 史宜, 沼田 健司, 高橋 龍一, 高橋 竜太郎, 高森 昭光, 田越 秀行, 田代 寛之, 田中 伸幸, 谷口 敬介, 樽家 篤史, 千葉 剛, 陳 たん
日本物理学会講演概要集69
(
0
)
49

49
2014

Highvelocity collision of particles around a rapidly rotating black hole
Harada, T.
Journal of Physics: Conference Series484
(
1
)
2014

Threshold of primordial black hole formation (vol 88, 084051, 2013)
Tomohiro Harada, ChulMoon Yoo, Kazunori Kohri
PHYSICAL REVIEW D89
(
2
)
1 2014

High energy collision of particles in the vicinity of extremal black holes in higher dimensions: BanadosSilkWest process as linear instability of extremal black holes
Peerreviewed
Naoki Tsukamoto, Masashi Kimura, Tomohiro Harada
PHYSICAL REVIEW D89
(
2
)
024020
1 2014

Identifying the most crucial parameters of the initial curvature profile for primordial black hole formation
Peerreviewed
Tomohiro Nakama, Tomohiro Harada, A. G. Polnarev, Jun'ichi Yokoyama
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS2014
(
1
)
037
1 2014

A NoGo Theorem for Rotating Stars of a Perfect Fluid without Radial Motion in Projectable HoravaLifshitz Gravity
Peerreviewed
Naoki Tsukamoto, Tomohiro Harada
Galaxies2013
(
1
)
261

274
12 2013

Threshold of primordial black hole formation
Peerreviewed
Tomohiro Harada, ChulMoon Yoo, Kazunori Kohri
PHYSICAL REVIEW D88
(
8
)
084051
10 2013

Escape of superheavy and highly energetic particles produced by particle collisions near maximally charged black holes
Peerreviewed
Hiroya Nemoto, Umpei Miyamoto, Tomohiro Harada, Takafumi Kokubu
PHYSICAL REVIEW D87
(
12
)
127502
6 2013

Weak cosmic censorship in gravitational collapse with astrophysical parameter values
Peerreviewed
Umpei Miyamoto, Sanjay Jhingan, Tomohiro Harada
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS2013
(
5
)
053E1
5 2013

Wave effect in gravitational lensing by the Ellis wormhole
Peerreviewed
ChulMoon Yoo, Tomohiro Harada, Naoki Tsukamoto
Physical Review D  Particles, Fields, Gravitation and Cosmology87
(
8
)
18 4 2013

Wave effect in gravitational lensing by the Ellis wormhole
Peerreviewed
ChulMoon Yoo, Tomohiro Harada, Naoki Tsukamoto
PHYSICAL REVIEW D87
(
8
)
084045
4 2013

Renormalization group approach to EinsteinRosen waves
Peerreviewed
Tomohiro Harada, Sanjay Jhingan
Physical Review D  Particles, Fields, Gravitation and Cosmology87
(
6
)
064043
28 3 2013

Do Black Holes Act as Natural Particle Accelerators?
Invited
HARADA Tomohiro, KIMURA Masashi
68
(
2
)
102

106
2 2013

Signed magnification sums for general spherical lenses
Peerreviewed
Naoki Tsukamoto, Tomohiro Harada
Physical Review D  Particles, Fields, Gravitation and Cosmology87
(
2
)
10 1 2013

Signed magnification sums for general spherical lenses
Peerreviewed
Naoki Tsukamoto, Tomohiro Harada
PHYSICAL REVIEW D87
(
2
)
024024
1 2013

Can we distinguish between black holes and wormholes by their Einsteinring systems?
Peerreviewed
Naoki Tsukamoto, Tomohiro Harada, Kohji Yajima
Physical Review D  Particles, Fields, Gravitation and Cosmology86
(
10
)
27 11 2012

Can we distinguish between black holes and wormholes by their Einsteinring systems?
Peerreviewed
Naoki Tsukamoto, Tomohiro Harada, Kohji Yajima
PHYSICAL REVIEW D86
(
10
)
104062
11 2012

Upper limits of particle emission from highenergy collision and reaction near a maximally rotating Kerr black hole (vol 86, 024027, 2012)
Tomohiro Harada, Hiroya Nemoto, Umpei Miyamoto
PHYSICAL REVIEW D86
(
6
)
9 2012

Upper limits of particle emission from highenergy collision and reaction near a maximally rotating Kerr black hole
Peerreviewed
Tomohiro Harada, Hiroya Nemoto, Umpei Miyamoto
PHYSICAL REVIEW D86
(
2
)
024027
7 2012

Effect of a weak electromagnetic field on particle acceleration by a rotating black hole
Peerreviewed
Takahisa Igata, Tomohiro Harada, Masashi Kimura
PHYSICAL REVIEW D85
(
10
)
104028
5 2012

Collision of an object in the transition from adiabatic inspiral to plunge around a Kerr black hole
Peerreviewed
Tomohiro Harada, Masashi Kimura
PHYSICAL REVIEW D84
(
12
)
124032
12 2011

A trapped surface in the higherdimensional selfsimilar Vaidya spacetime
Masahiro Shimano, Tomohiro Harada, Naoki Tsukamoto
17 8 2011

The Japanese space gravitational wave antenna: DECIGO
Peerreviewed
Kawamura, Seiji, Ando, Masaki, Seto, Naoki, Sato, Shuichi, Nakamura, Takashi, Tsubono, Kimio, K, a, Nobuyuki, Tanaka, Takahiro, Yokoyama, Jun'ichi, Funaki, Ikkoh, Numata, Kenji, Ioka, Kunihito, Takashima, Takeshi, Agatsuma, Kazuhiro, Akutsu, Tomotada, Aoyanagi, Kohsuke, Arai, Koji, Araya, Akito, Asada, Hideki, Aso, Yoichi, Chen, Dan, Chiba, Takeshi, Ebisuzaki, Toshikazu, Ejiri, Yumiko, Enoki, Motohiro, Eriguchi, Yoshiharu, Fujimoto, MasaKatsu, Fujita, Ryuichi, Fukushima, Mitsuhiro, Futamase, Toshifumi, Harada, Tomohiro, Hashimoto, Tatsuaki, Hayama, Kazuhiro, Hikida, Wataru, Himemoto, Yoshiaki, Hirabayashi, Hisashi, Hiramatsu, Takashi, Hong, FengLei, Horisawa, Hideyuki, Hosokawa, Mizuhiko, Ichiki, Kiyotomo, Ikegami, Takeshi, Inoue, Kaiki T, Ishidoshiro, Koji, Ishihara, Hideki, Ishikawa, Takehiko, Ishizaki, Hideharu, Ito, Hiroyuki, Itoh, Yousuke, Izumi, Kiwamu, Kawano, Isao, Kawashima, Nobuki, Kawazoe, Fumiko, Kishimoto, Naoko, Kiuchi, Kenta, Kobayashi, Shiho, Kohri, Kazunori, Koizumi, Hiroyuki, Kojima, Yasufumi, Kokeyama, Keiko, Kokuyama, Wataru, Kotake, Kei, Kozai, Yoshihide, Kunimori, Hiroo, Kuninaka, Hitoshi, Kuroda, Kazuaki, Kuroyanagi, Sachiko, Maeda, Keiichi, Matsuhara, Hideo, Matsumoto, Nobuyuki, Michimura, Yuta, Miyakawa, Osamu, Miyamoto, Umpei, Miyoki, Shinji, Morimoto, Mutsuko Y, Morisawa, Toshiyuki, Moriwaki, Shigenori, Mukohyama, Shinji, Musha, Mitsuru, Nagano, Shigeo, Naito, Isao, Nakamura, Kouji, Nakano, Hiroyuki, Nakao, Kenichi, Nakasuka, Shinichi, Nakayama, Yoshinori, Nakazawa, Kazuhiro, Nishida, Erina, Nishiyama, Kazutaka, Nishizawa, Atsushi, Niwa, Yoshito, Noumi, Taiga, Obuchi, Yoshiyuki, Ohashi, Masatake, Ohishi, Naoko, Ohkawa, Masashi, Okada, Kenshi, Okada, Norio, Oohara, Kenichi, Sago, Norichika, Saijo, Motoyuki, Saito, Ryo, Sakagami, Masaaki, Sakai, Shinichiro, Sakata, Shihori, Sasaki, Misao, Sato, Takashi, Shibata, Masaru, Shinkai, Hisaaki, Shoda, Ayaka, Somiya, Kentaro, Sotani, Hajime, Sugiyama, Naoshi, Suwa, Yudai, Suzuki, Rieko, Tagoshi, Hideyuki, Takahashi, Fuminobu, Takahashi, Kakeru, Takahashi, Keitaro, Takahashi, Ryutaro, Takahashi, Ryuichi, Takahashi, Tadayuki, Takahashi, Hirotaka, Akiteru, Takamori, Takano, Tadashi, Tanaka, Nobuyuki, Taniguchi, Keisuke, Taruya, Atsushi, Tashiro, Hiroyuki, Torii, Yasuo, Toyoshima, Morio, Tsujikawa, Shinji, Tsunesada, Yoshiki, Ueda, Akitoshi, Ueda, Kenichi, Utashima, Masayoshi, Wakabayashi, Yaka, Yagi, Kent, Yamakawa, Hiroshi, Yamamoto, Kazuhiro, Yamazaki, Toshitaka, Yoo, ChulMoon, Yoshida, Shijun, Yoshino, Taizoh, Sun, KeXun
Classical and Quantum Gravity28
(
9
)
094011

094011
5 2011

Discretization parameter and operator ordering in loop quantum cosmology with the cosmological constant
Peerreviewed
Tomo Tanaka, Fumitoshi Amemiya, Masahiro Shimano, Tomohiro Harada, Takashi Tamaki
PHYSICAL REVIEW D83
(
10
)
104049
5 2011

Collision of two general geodesic particles around a Kerr black hole
Peerreviewed
Tomohiro Harada, Masashi Kimura
PHYSICAL REVIEW D83
(
8
)
084041
4 2011

Black hole candidates and the Kerr bound
Peerreviewed
Tomohiro Harada, Rohta Takahashi
SPANISH RELATIVITY MEETING (ERE 2010): GRAVITY AS A CROSSROAD IN PHYSICS314
2011

Uniqueness of static spherically symmetric vacuum solutions in the IR limit of nonrelativistic quantum gravity
Tomohiro Harada, Umpei Miyamoto, Naoki Tsukamoto
SPANISH RELATIVITY MEETING (ERE 2010): GRAVITY AS A CROSSROAD IN PHYSICS314
2011

Collision of an innermost stable circular orbit particle around a Kerr black hole
Peerreviewed
Tomohiro Harada, Masashi Kimura
PHYSICAL REVIEW D83
(
2
)
024002
1 2011

UNIQUENESS OF STATIC SPHERICALLY SYMMETRIC VACUUM SOLUTIONS IN THE IR LIMIT OF HORAVALIFSHITZ GRAVITY
Peerreviewed
Tomohiro Harada, Umpei Miyamoto, Naoki Tsukamoto
INTERNATIONAL JOURNAL OF MODERN PHYSICS D20
(
1
)
111

118
1 2011

``Can a primordial black hole or wormhole grow as fast as the universe?''
Peerreviewed
B.J. Carr, Tomohiro Harada, Hideki Maeda
Classical and Quantum Gravity
8 2010

``Visible borders of spacetime generated by highenergy collisions''
Kenichi Nakao, Tomohiro Harada, Umpei Miyamoto
arXiv:1007.4610
7 2010

``Discretisation parameter and operator ordering in loop quantum cosmology with the cosmological constant''
Tomo Tanaka, Fumitoshi Amemiya, Masahiro Shimano, Tomohiro Harada, Takashi Tamaki
arXiv:1005.2518
5 2010

Outflows from accreting superspinars
Peerreviewed
Cosimo Bambi, Tomohiro Harada, Rohta Takahashi, Naoki Yoshida
PHYSICAL REVIEW D81
(
10
)
5 2010

DECIGO and DECIGO pathfinder
Peerreviewed
Masaki Ando, Seiji Kawamura, Naoki Seto, Shuichi Sato, Takashi Nakamura, Kimio Tsubono, Takeshi Takashima, Ikkoh Funaki, Kenji Numata, Nobuyuki Kanda, Takahiro Tanaka, Kunihito Ioka, Kazuhiro Agatsuma, Kohsuke Aoyanagi, Koji Arai, Akito Araya, Hideki Asada, Yoichi Aso, Takeshi Chiba, Toshikazu Ebisuzaki, Yumiko Ejiri, Motohiro Enoki, Yoshiharu Eriguchi, MasaKatsu Fujimoto, Ryuichi Fujita, Mitsuhiro Fukushima, Toshifumi Futamase, Tomohiro Harada, Tatsuaki Hashimoto, Kazuhiro Hayama, Wataru Hikida, Yoshiaki Himemoto, Hisashi Hirabayashi, Takashi Hiramatsu, FengLei Hong, Hideyuki Horisawa, Mizuhiko Hosokawa, Kiyotomo Ichiki, Takeshi Ikegami, Kaiki T. Inoue, Koji Ishidoshiro, Hideki Ishihara, Takehiko Ishikawa, Hideharu Ishizaki, Hiroyuki Ito, Yousuke Itoh, Kiwamu Izumi, Isao Kawano, Nobuki Kawashima, Fumiko Kawazoe, Naoko Kishimoto, Kenta Kiuchi, Shiho Kobayashi, Kazunori Kohri, Hiroyuki Koizumi, Yasufumi Kojima, Keiko Kokeyama, Wataru Kokuyama, Kei Kotake, Yoshihide Kozai, Hiroo Kunimori, Hitoshi Kuninaka, Kazuaki Kuroda, Keiichi Maeda, Hideo Matsuhara, Yasushi Mino, Osamu Miyakawa, Umpei Miyamoto, Shinji Miyoki, Mutsuko Y. Morimoto, Toshiyuki Morisawa, Shigenori Moriwaki, Shinji Mukohyama, Mitsuru Musha, Shigeo Nagano, Isao Naito, Kouji Nakamura, Masahiro Nakamura, Hiroyuki Nakano, Kenichi Nakao, Shinichi Nakasuka, Yoshinori Nakayama, Kazuhiro Nakazawa, Erina Nishida, Kazutaka Nishiyama, Atsushi Nishizawa, Yoshito Niwa, Taiga Noumi, Yoshiyuki Obuchi, Masatake Ohashi, Naoko Ohishi, Masashi Ohkawa, Kenshi Okada, Norio Okada, Kenichi Oohara, Norichika Sago, Motoyuki Saijo, Ryo Saito, Masaaki Sakagami, Shinichiro Sakai, Shihori Sakata, Misao Sasaki, Takashi Sato, Masaru Shibata, Hisaaki Shinkai, Kentaro Somiya, Hajime Sotani, Naoshi Sugiyama, Yudai Suwa, Rieko Suzuki, Hideyuki Tagoshi, Fuminobu Takahashi, Kakeru Takahashi, Keitaro Takahashi, Ryutaro Takahashi, Ryuichi Takahashi, Tadayuki Takahashi, Hirotaka Takahashi, Takamori Akiteru, Tadashi Takano, Keisuke Taniguchi, Atsushi Taruya, Hiroyuki Tashiro, Yasuo Torii, Morio Toyoshima, Shinji Tsujikawa, Yoshiki Tsunesada, Akitoshi Ueda, Kenichi Ueda, Masayoshi Utashima, Yaka Wakabayashi, Kent Yagi, Hiroshi Yamakawa, Kazuhiro Yamamoto, Toshitaka Yamazaki, Jun'ichi Yokoyama, ChulMoon Yoo, Shijun Yoshida, Taizoh Yoshino, KenXun Sun
CLASSICAL AND QUANTUM GRAVITY27
(
8
)
4 2010

Observational testability of a Kerr bound in the xray spectrum of black hole candidates
Peerreviewed
Rohta Takahashi, Tomohiro Harada
Classical and Quantum Gravity27
(
7
)
2010

``EinsteinRosen waves and selfsimilarity''
Tomohiro Harada
Proceedings of the 19th Workshop on General Relativity and Gravitation, 30 Nov4 Dec, 2009, Tokyo, Japan, ed. M. Saijo, U. Miyamoto, T. Harada, M. Sasaki, T. Shiromizu and S. Mukohyama, pp. 153156, http://wwwtap.scphys.kyotou.ac.jp/jgrg/proc/JGRG19.pdf.
12 2009

EinsteinRosen waves and the selfsimilarity hypothesis in cylindrical symmetry (vol 80, 024025, 2009)
Tomohiro Harada, Kenichi Nakao, Brien C. Nolan
PHYSICAL REVIEW D80
(
10
)
11 2009

``Static spherically symmetric solutions in the IR limit of nonrelativistic quantum gravity''
Tomohiro Harada, Umpei Miyamoto, Naoki Tsukamoto
arXiv:0911.1187.
11 2009

Accretion process onto superspinning objects
Peerreviewed
Cosimo Bambi, Katherine Freese, Tomohiro Harada, Rohta Takahashi, Naoki Yoshida
PHYSICAL REVIEW D80
(
10
)
11 2009

Observational constraints of a power spectrum from superinflation in loop quantum cosmology
Peerreviewed
Masahiro Shimano, Tomohiro Harada
PHYSICAL REVIEW D80
(
6
)
9 2009

Relativistic Gravitational Collapse of a Cylindrical Shell of Dust. II  Settling Down Boundary Condition
Peerreviewed
Kenichi Nakao, Tomohiro Harada, Yasunari Kurita, Yoshiyuki Morisawa
PROGRESS OF THEORETICAL PHYSICS122
(
2
)
521

541
8 2009

EinsteinRosen waves and the selfsimilarity hypothesis in cylindrical symmetry
Peerreviewed
Tomohiro Harada, Kenichi Nakao, Brien C. Nolan
PHYSICAL REVIEW D80
(
2
)
7 2009

DECIGO pathfinder
Masaki Ando, Seiji Kawamura, Shuichi Sato, Takashi Nakamura, Kimio Tsubono, Akito Araya, Ikkoh Funaki, Kunihito Ioka, Nobuyuki Kanda, Shigenori Moriwaki, Mitsuru Musha, Kazuhiro Nakazawa, Kenji Numata, Shinichiro Sakai, Naoki Seto, Takeshi Takashima, Takahiro Tanaka, Kazuhiro Agatsuma, Kohsuke Aoyanagi, Koji Arai, Hideki Asada, Yoichi Aso, Takeshi Chiba, Toshikazu Ebisuzaki, Yumiko Ejiri, Motohiro Enoki, Yoshiharu Eriguchi, MasaKatsu Fujimoto, Ryuichi Fujita, Mitsuhiro Fukushima, Toshifumi Futamase, Katsuhiko Ganzu, Tomohiro Harada, Tatsuaki Hashimoto, Kazuhiro Hayama, Wataru Hikida, Yoshiaki Himemoto, Hisashi Hirabayashi, Takashi Hiramatsu, FengLei Hong, Hideyuki Horisawa, Mizuhiko Hosokawa, Kiyotomo Ichiki, Takeshi Ikegami, Kaiki T. Inoue, Koji Ishidoshiro, Hideki Ishihara, Takehiko Ishikawa, Hideharu Ishizaki, Hiroyuki Ito, Yousuke Itoh, Nobuki Kawashima, Fumiko Kawazoe, Naoko Kishimoto, Kenta Kiuchi, Shiho Kobayashi, Kazunori Kohri, Hiroyuki Koizumi, Yasufumi Kojima, Keiko Kokeyama, Wataru Kokuyama, Kei Kotake, Yoshihide Kozai, Hideaki Kudoh, Hiroo Kunimori, Hitoshi Kuninaka, Kazuaki Kuroda, Keiichi Maeda, Hideo Matsuhara, Yasushi Mino, Osamu Miyakawa, Shinji Miyoki, Mutsuko Y. Morimoto, Tomoko Morioka, Toshiyuki Morisawa, Shinji Mukohyama, Shigeo Nagano, Isao Naito, Kouji Nakamura, Hiroyuki Nakano, Kenichi Nakao, Shinichi Nakasuka, Yoshinori Nakayama, Erina Nishida, Kazutaka Nishiyama, Atsushi Nishizawa, Yoshito Niwa, Taiga Noumi, Yoshiyuki Obuchi, Masatake Ohashi, Naoko Ohishi, Masashi Ohkawa, Norio Okada, Kouji Onozato, Kenichi Oohara, Norichika Sago, Motoyuki Saijo, Masaaki Sakagami, Shihori Sakata, Misao Sasaki, Takashi Sato, Masaru Shibata, Hisaaki Shinkai, Kentaro Somiya, Hajime Sotani, Naoshi Sugiyama, Yudai Suwa, Rieko Suzuki, Hideyuki Tagoshi, Fuminobu Takahashi, Kakeru Takahashi, Keitaro Takahashi, Ryutaro Takahashi, Ryuichi Takahashi, Tadayuki Takahashi, Hirotaka Takahashi, Takamori Akiteru, Tadashi Takano, Keisuke Taniguchi, Atsushi Taruya, Hiroyuki Tashiro, Yasuo Torii, Morio Toyoshima, Shinji Tsujikawa, Yoshiki Tsunesada, Akitoshi Ueda, Kenichi Ueda, Masayoshi Utashima, Yaka Wakabayashi, Hiroshi Yamakawa, Kazuhiro Yamamoto, Toshitaka Yamazaki, Jun'ichi Yokoyama, ChulMoon Yoo, Shijun Yoshida, Taizoh Yoshino
CLASSICAL AND QUANTUM GRAVITY26
(
9
)
5 2009

Cosmological wormholes
Peerreviewed
Hideki Maeda, Tomohiro Harada, B. J. Carr
PHYSICAL REVIEW D79
(
4
)
2 2009

DECIGO: The Japanese space gravitational wave antenna
Shuichi Sato, Seiji Kawamura, Masaki Ando, Takashi Nakamura, Kimio Tsubono, Akito Araya, Ikkoh Funaki, Kunihito Ioka, Nobuyuki Kanda, Shigenori Moriwaki, Mitsuru Musha, Kazuhiro Nakazawa, Kenji Numata, Shin Ichiro Sakai, Naoki Seto, Takeshi Takashima, Takahiro Tanaka, Kazuhiro Agatsuma, Koh Suke Aoyanagi, Koji Arai, Hideki Asada, Yoichi Aso, Takeshi Chiba, Toshikazu Ebisuzaki, Yumiko Ejiri, Motohiro Enoki, Yoshiharu Eriguchi, Masa Katsu Fujimoto, Ryuichi Fujita, Mitsuhiro Fukushima, Toshifumi Futamase, Katsuhiko Ganzu, Tomohiro Harada, Tatsuaki Hashimoto, Kazuhiro Hayama, Wataru Hikida, Yoshiaki Himemoto, Hisashi Hirabayashi, Takashi Hiramatsu, Feng Lei Hong, Hideyuki Horisawa, Mizuhiko Hosokawa, Kiyotomo Ichiki, Takeshi Ikegami, Kaiki TInoue, Koji Ishidoshiro, Hideki Ishihara, Takehiko Ishikawa, Hideharu Ishizaki, Hiroyuki Ito, Yousuke Itoh, Nobuki Kawashima, Fumiko Kawazoe, Kishimoto Naoko, Kenta Kiuchi, Shiho Kobayashi, Kazunori Kohri, Hiroyuki Koizumi, Yasufumi Kojima, Keiko Kokeyama, Wataru Kokuyama, Kei Kotake, Yoshihide Kozai, Hideaki Kudoh, Hiroo Kunimori, Hitoshi Kuninaka, Kazuaki Kuroda, Kei Ichi Maeda, Hideo Matsuhara, Yasushi Mino, Osamu Miyakawa, Shinji Miyoki, Mutsuko YMorimoto, Tomoko Morioka, Toshiyuki Morisawa, Shinji Mukohyama, Shigeo Nagano, Isao Naito, Kouji Nakamura, Hiroyuki Nakano, Kenichi Nakao, Shinichi Nakasuka, Yoshinori Nakayama, Erina Nishida, Kazutaka Nishiyama, Atsushi Nishizawa, Yoshito Niwa, Taiga Noumi, Yoshiyuki Obuchi, Masatake Ohashi, Naoko Ohishi, Masashi Ohkawa, Norio Okada, Kouji Onozato, Kenichi Oohara, Norichika Sago, Motoyuki Saijo, Masaaki Sakagami, Shihori Sakata, Misao Sasaki
Journal of Physics: Conference Series154
2009

Selfsimilar black holes in an accelerated universe
Tomohiro Harada
PHYSICS AND MATHEMATICS OF GRAVITATION1122
288

291
2009

Singularities and selfsimilarity in gravitational collapse
Tomohiro Harada
NONCOMMUTATIVITY AND SINGULARITIES: PROCEEDINGS OF FRENCHJAPANESE SYMPOSIA HELD AT IHES IN 200655
15

30
2009

Highspeed collapse of a hollow sphere of type i matter
Peerreviewed
Zahid Ahmad, Tomohiro Harada, KenIchi Nakao, M. Sharif
Classical and Quantum Gravity26
(
3
)
2009

``Gravitational collapse of a dust ball from the perspective of loop quantum gravity: an application''
Tomohiro Harada
Proceedings of the 18th Workshop on General Relativity and Gravitation, 1721 Nov, 2008, Hiroshima, Japan, ed. Y. Kojima, K. Yamamoto, R. Yamazaki, and M. Sasaki, pp. 4952, http://wwwtap.scphys.kyotou.ac.jp/jgrg/proc/JGRG18.pdf.
11 2008

LemaitreTolmanBondi collapse from the perspective of loop quantum gravity
Peerreviewed
Martin Bojowald, Tomohiro Harada, Rakesh Tibrewala
PHYSICAL REVIEW D78
(
6
)
9 2008

Asymptotically Friedmann selfsimilar scalar field solutions with potential
Peerreviewed
Masanori Kyo, Tomohiro Harada, Hideki Maeda
PHYSICAL REVIEW D77
(
12
)
6 2008

Selfsimilar cosmological solutions with dark energy. II. Black holes, naked singularities, and wormholes
Peerreviewed
Hideki Maeda, Tomohiro Harada, B. J. Carr
Physical Review D  Particles, Fields, Gravitation and Cosmology77
(
2
)
11 1 2008

``Black Holes in Scalar field/Quintessence Cosmology''
Tomohiro Harada
the Proceedings of the Eleventh Marcel Grossmann Meeting on General Relativity, ed. H. Kleinert, R. Jantzen and R. Ruffini, pp. 11131115 (World Scientific, Singapore, 2008).
1 2008

``Black Hole Evaporation in a Friedmann Universe''
Tomohiro Harada
the Proceedings of the 8th International Conference on Gravitation and Astrophysics, ed. M. Kenmoku and M. Sasaki, pp. 2122 (Press Section of ICGA8, Nara Women's University, 2008).
1 2008

Selfsimilar cosmological solutions with dark energy. I. Formulation and asymptotic analysis
Tomohiro Harada, Hideki Maeda, B. J. Carr
PHYSICAL REVIEW D77
(
2
)
1 2008

The Japanese Space Gravitational Wave Antenna; DECIGO
Seiji Kawamura, Masaki Ando, Takashi Nakamura, Kimio Tsubono, Takahiro Tanaka, Ikkoh Funaki, Naoki Seto, Kenji Numata, Shuichi Sato, Kunihito Ioka, Nobuyuki Kanda, Takeshi Takashima, Kazuhiro Agatsuma, Tomotada Akutsu, Tomomi Akutsu, Kohsuke Aoyanagi, Koji Arai, Yuta Arase, Akito Araya, Hideki Asada, Yoichi Aso, Takeshi Chiba, Toshikazu Ebisuzaki, Motohiro Enoki, Yoshiharu Eriguchi, MasaKatsu Fujimoto, Ryuichi Fujita, Mitsuhiro Fukushima, Toshifumi Futamase, Katsuhiko Ganzu, Tomohiro Harada, Tatsuaki Hashimoto, Kazuhiro Hayama, Wataru Hikida, Yoshiaki Himemoto, Hisashi Hirabayashi, Takashi Hiramatsu, FengLei Hong, Hideyuki Horisawa, Mizuhiko Hosokawa, Kiyotomo Ichiki, Takeshi Ikegami, Kaiki T. Inoue, Koji Ishidoshiro, Hideki Ishihara, Takehiko Ishikawa, Hideharu Ishizaki, Hiroyuki Ito, Yousuke Itoh, Shogo Kamagasako, Nobuki Kawashima, Fumiko Kawazoe, Hiroyuki Kirihara, Naoko Kishimoto, Kenta Kiuchi, Shiho Kobayashi, Kazunori Kohri, Hiroyuki Koizumi, Yasufumi Kojima, Keiko Kokeyama, Wataru Kokuyama, Kei Kotake, Yoshihide Kozai, Hideaki Kudoh, Hiroo Kunimori, Hitoshi Kuninaka, Kazuaki Kuroda, Keiichi Maeda, Hideo Matsuhara, Yasushi Mino, Osamu Miyakawa, Shinji Miyoki, Mutsuko Y. Morimoto, Tomoko Morioka, Toshiyuki Morisawa, Shigenori Moriwaki, Shinji Mukohyama, Mitsuru Musha, Shigeo Nagano, Isao Naito, Noriyasu Nakagawa, Kouji Nakamura, Hiroyuki Nakano, Kenichi Nakao, Shinichi Nakasuka, Yoshinori Nakayama, Erina Nishida, Kazutaka Nishiyama, Atsushi Nishizawa, Yoshito Niwa, Masatake Ohashi, Naoko Ohishi, Masashi Ohkawa, Akira Okutomi, Kouji Onozato, Kenichi Oohara, Norichika Sago, Motoyuki Saijo, Masaaki Sakagami, Shinichiro Sakai, Shihori Sakata, Misao Sasaki, Takashi Sato, Masaru Shibata, Hisaaki Shinkai, Kentaro Somiya, Hajime Sotani, Naoshi Sugiyama, Yudai Suwa, Hideyuki Tagoshi, Kakeru Takahashi, Keitaro Takahashi, Tadayuki Takahashi, Hirotaka Takahashi, Ryuichi Takahashi, Ryutaro Takahashi, Akiteru Takamori, Tadashi Takano, Keisuke Taniguchi, Atsushi Taruya, Hiroyuki Tashiro, Mitsuru Tokuda, Masao Tokunari, Morio Toyoshima, Shinji Tsujikawa, Yoshiki Tsunesada, Kenichi Ueda, Masayoshi Utashima, Hiroshi Yamakawa, Kazuhiro Yamamoto, Toshitaka Yamazaki, Jun'ichi Yokoyama, ChulMoon Yoo, Shijun Yoshida, Taizoh Yoshino
TAUP2007: TENTH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS120
2008

Selfsimilar cosmological solutions with dark energy. I. Formulation and asymptotic analysis
Peerreviewed
Tomohiro Harada, Hideki Maeda, B. J. Carr
PHYSICAL REVIEW D77
(
2
)
1 2008

Selfsimilar cosmological solutions with dark energy. II. Black holes, naked singularities, and wormholes
Peerreviewed
Hideki Maeda, Tomohiro Harada, B. J. Carr
PHYSICAL REVIEW D77
(
2
)
1 2008

``Selfsimilar cosmological solutions with dark energy''
Tomohiro Harada
Proceedings of the 17th Workshop on General Relativity and Gravitation, 3  7 Dec 2007, Nagoya, Japan, ed. Y. Nambu, E. Mitsuda and M. Sasaki, pp. 289292, http://wwwtap.scphys.kyotou.ac.jp/jgrg/proc/JGRG17.pdf.
12 2007

Critical Collapse of Einstein Cluster(Astrophysics and Relativity)
Peerreviewed
Ashutosh MAHAJAN, Tomohiro HARADA, Pankaj JOSHI, Kenichi NAKAO, Department of Physics Rikkyo University:Department of Physics Kyoto University, Department of Physics Osaka City University
Progress of theoretical physics = Progress of theoretical physics118
(
5
)
865

878
25 11 2007

Black hole evaporation in an expanding universe
Peerreviewed
Hiromi Saida, Tomohiro Harada, Hideki Maeda
CLASSICAL AND QUANTUM GRAVITY24
(
18
)
4711

4732
9 2007

``Analytical solutions for blackhole critical behaviour''
Peerreviewed
Tomohiro Harada, Ashutosh Mahajan
Gen. Rel. Grav. 39(11)
8 2007

「原始ブラックホールの形成と成長」
原田知広
日本物理学会誌第62巻第1号30頁（日本物理学会、東京、2007年1月）
1 2007

Relativistic gravitational collapse of a cylindrical shell of dust
Peerreviewed
Kenichi Nakao, Yasunari Kurita, Yoshiyuki Morisawa, Tomohiro Harada
PROGRESS OF THEORETICAL PHYSICS117
(
1
)
75

102
1 2007

``Critical Collapse of Einstein Cluster''
Peerreviewed
Ashutosh Mahajan, Tomohiro Harada, Pankaj S. Joshi, Kenichi Nakao
Prog. Theor. Phys. 118(5)
1 2007

Is there a black hole minimum mass?
Peerreviewed
Tomohiro Harada
PHYSICAL REVIEW D74
(
8
)
10 2006

The Japanese space gravitational wave antenna  DECIGO
Seiji Kawamura, Takashi Nakamura, Masaki Ando, Naoki Seto, Kimio Tsubono, Kenji Numata, Ryuichi Takahashi, Shigeo Nagano, Takehiko Ishikawa, Mitsuru Musha, Kenichi Ueda, Takashi Sato, Mizuhiko Hosokawa, Kazuhiro Agatsuma, Tomotada Akutsu, Kohsuke Aoyanagi, Koji Arai, Akito Araya, Hideki Asada, Yoichi Aso, Takeshi Chiba, Toshikazu Ebisuzaki, Yoshiharu Eriguchi, MasaKatsu Fujimoto, Mitsuhiro Fukushima, Toshifumi Futamase, Katsuhiko Ganzu, Tomohiro Harada, Tatsuaki Hashimoto, Kazuhiro Hayama, Wataru Hikida, Yoshiaki Himemoto, Hisashi Hirabayashi, Takashi Hiramatsu, Kiyotomo Ichiki, Takeshi Ikegami, Kaiki T. Inoue, Kunihito Ioka, Koji Ishidoshiro, Yousuke Itoh, Shogo Kamagasako, Nobuyuki Kanda, Nobuki Kawashima, Hiroyuki Kirihara, Kenta Kiuchi, Shiho Kobayashi, Kazunori Kohri, Yasufumi Kojima, Keiko Kokeyama, Yoshihide Kozai, Hideaki Kudoh, Hiroo Kunimori, Kazuaki Kuroda, Keiichi Maeda, Hideo Matsuhara, Yasushi Mino, Osamu Miyakawa, Shinji Miyoki, Hiromi Mizusawa, Toshiyuki Morisawa, Shinji Mukohyama, Isao Naito, Noriyasu Nakagawa, Kouji Nakamura, Hiroyuki Nakano, Atsushi Nishizawa, Yoshito Niwa, Choetsu Nozawa, Masatake Ohashi, Naoko Ohishi, Masashi Ohkawa, Akira Okutomi, Kenichi Oohara, Norichika Sago, Motoyuki Saijo, Masaaki Sakagami, Shihori Sakata, Misao Sasaki, Shuichi Sato, Masaru Shibata, Hisaaki Shinkai, Kentaro Somiya, Hajime Sotani, Naoshi Sugiyama, Hideyuki Tagoshi, Tadayuki Takahashi, Hirotaka Takahashi, Ryutaro Takahashi, Tadashi Takano, Takahiro Tanaka, Keisuke Taniguchi, Atsushi Taruya, Hiroyuki Tashiro, Masao Tokunari, Shinji Tsujikawa, Yoshiki Tsunesada, Kazuhiro Yamamoto, Toshitaka Yamazaki, Jun'ichi Yokoyama, ChulMoon Yoo, Shijun Yoshida, Taizoh Yoshino
CLASSICAL AND QUANTUM GRAVITY23
(
8
)
S125

S131
4 2006

Using gravitationalwave observations to constrain the parameters of bag model
Peerreviewed
Sotani, H., Kohri, K., Harada, T.
The Tenth Marcel Grossmann Meeting: On Recent Developments in Theoretical and Experimental General Relativity, Gravitation and Relativistic Field Theories2
1352

1354
2006

Spherically symmetric perfect fluid collapse in arearadial coordinates
Hideo Iguchi, Tomohiro Harada, Filipe C. Mena
AIP Conference Proceedings861
646

653
2006

Superhorizon primordial black holes: How do they grow?
Tomohiro Harada
THIRD 21COE SYMPOSIUM: ASTROPHYSICS AS INTERDISCIPLINARY SCIENCE31
111

114
2006

``GROWTH OF PRIMORDIAL BLACK HOLES''
Tomohiro Harada
in ``Gravitation and Astrophysics: On the Occasion of the 90th Year of General Relativity'', the Proceedings of the Seventh AsiaPacific International Conference on Gravitation and Astrophysics'', Nov 2326, 2005, Chungli, Taiwan, ed. J. M. Nester, CM. Chen and JP. Hsu, pp. 253259 (World Scientific, Singapore, 2006)
1 2006

Nonexistence of selfsimilar solutions containing a black hole in a universe with a stiff fluid or scalar field or quintessence
Peerreviewed
Tomohiro Harada, Hideki Maeda, B. J. Carr
Physical Review D  Particles, Fields, Gravitation and Cosmology74
(
2
)
2006

``Superhorizon primordial black hole and its evolution''
Tomohiro Harada
Proceedings of the 15th Workshop on General Relativity and Gravitation, Nov 28  Dec 2, 2005, Tokyo, Japan, ed. T. Shiromizu, H. Yoshino, A. Hosoya, T. Nakamura and M. Sasaki, pp. 8891, http://wwwtap.scphys.kyotou.ac.jp/jgrg/proc/JGRG15.pdf.
12 2005

Superhorizon primordial black holes
Peerreviewed
Tomohiro Harada, B. J. Carr
Physical Review D  Particles, Fields, Gravitation and Cosmology72
(
4
)
1

12
15 8 2005

Superhorizon primordial black holes
Peerreviewed
T Harada, BJ Carr
PHYSICAL REVIEW D72
(
4
)
8 2005

Upper limits on the size of a primordial black hole
Peerreviewed
T Harada, BJ Carr
PHYSICAL REVIEW D71
(
10
)
5 2005

Growth of primordial black holes in a universe containing a massless scalar field
Peerreviewed
T Harada, BJ Carr
PHYSICAL REVIEW D71
(
10
)
5 2005

Novel Cauchyhorizon instability
Peerreviewed
Hideki Maeda, Takashi Torii, Tomohiro Harada
Physical Review D  Particles, Fields, Gravitation and Cosmology71
(
6
)
1

6
15 3 2005

Spherically symmetric perfect fluid in arearadial coordinates
Peerreviewed
H Iguchi, T Harada, FC Mena
CLASSICAL AND QUANTUM GRAVITY22
(
5
)
841

853
3 2005

Quantum effect and curvature strength of naked singularities
Peerreviewed
U Miyamoto, H Maeda, T Harada
PROGRESS OF THEORETICAL PHYSICS113
(
3
)
513

533
3 2005

Novel Cauchyhorizon instability
Peerreviewed
H Maeda, T Torii, T Harada
PHYSICAL REVIEW D71
(
6
)
3 2005

Kink instability and stabilization of the Friedmann universe with scalar fields
Peerreviewed
H Maeda, T Harada
PHYSICS LETTERS B607
(
12
)
8

16
2 2005

``Stability criterion for selfsimilar solutions with a scalar field and those with a stiff fluid in general relativity''
Hideki Maeda, Tomohiro Harada
Journal of the Korean Physical Society 45 (Supplement), S90S94, as Proceedings of VIth APCTP International Conference of Gravitation and Astrophysics.
10 2004

Semiclassical instability of the Cauchy horizon in selfsimilar collapse
Peerreviewed
U Miyamoto, T Harada
PHYSICAL REVIEW D69
(
10
)
5 2004

Restricting quark matter models by gravitational wave observation
Peerreviewed
H Sotani, K Kohri, T Harada
PHYSICAL REVIEW D69
(
8
)
4 2004

「重力崩壊と自己相似仮説」
原田知広
日本物理学会誌第59巻第3号175頁（日本物理学会、東京、2004年3月）
3 2004

Semiclassical instability of the Cauchy horizon in selfsimilar collapse
Peerreviewed
Umpei Miyamoto, Tomohiro Harada
Physical Review D  Particles, Fields, Gravitation and Cosmology69
(
10
)
2004

``Gravitational Collapse and Naked Singularities''
Peerreviewed
Tomohiro Harada
Pramana 63(4), 741 (2004), Proceedings of the 5th International Conference on Gravitation and Cosmology, Jan 510, 2004, Cochin, India, grqc/0407109.
1 2004

Border of spacetime
Peerreviewed
Tomohiro Harada, Kenichi Nakao
Physical Review D  Particles, Fields, Gravitation and Cosmology70
(
4
)
2004

Computing gravitational waves from slightly nonspherical stellar collapse to a black hole: Oddparity perturbation
Peerreviewed
T Harada, H Iguchi, M Shibata
PHYSICAL REVIEW D68
(
2
)
7 2003

Nonradial oscillations of quark stars
Peerreviewed
H Sotani, T Harada
PHYSICAL REVIEW D68
(
2
)
7 2003

A classification of spherically symmetric kinematic selfsimilar perfectfluid solutions. II
Peerreviewed
H Maeda, T Harada, H Iguchi, N Okuyama
PROGRESS OF THEORETICAL PHYSICS110
(
1
)
25

63
7 2003

Criticality and convergence in Newtonian collapse
Peerreviewed
T Harada, H Maeda, B Semelin
PHYSICAL REVIEW D67
(
8
)
4 2003

Quadrupole oscillations of quark stars
Sotani Hajime, Harada Tomohiro
Soryushiron Kenkyu Electronics107
(
6
)
F72
2003

Computing gravitational waves from slightly nonspherical stellar collapse to a black hole: Oddparity perturbation
Peerreviewed
Tomohiro Harada, Hideo Iguchi, Masaru Shibata
Physical Review D68
(
2
)
2003

Particle velocity in noncommutative spacetime
Peerreviewed
Takashi Tamaki, Tomohiro Harada, Umpei Miyamoto
Physical Review D  Particles, Fields, Gravitation and Cosmology66
(
10
)
12 11 2002

``SelfSimilar Solutions, Critical Behavior and Convergence to Attractor in Gravitational Collapse''
Tomohiro Harada
Proceedings of the 12th Workshop on General Relativity and Gravitation, Nov 2528, 2002, Tokyo, Japan, ed. M. Shibata, Y. Eriguchi, K. Taniguchi, T. Nakamura and K. Tomita, p. 123. grqc/0302004.
11 2002

Particle velocity in noncommutative spacetime
Peerreviewed
T Tamaki, T Harada, U Miyamoto, T Torii
PHYSICAL REVIEW D66
(
10
)
11 2002

A classification of spherically symmetric kinematic selfsimilar perfectfluid solutions
Peerreviewed
H Maeda, T Harada, H Iguchi, N Okuyama
PROGRESS OF THEORETICAL PHYSICS108
(
5
)
819

851
11 2002

TolmanBondi collapse in scalartensor theories as a probe of gravitational memory
Peerreviewed
T Harada, C Goymer, BJ Carr
PHYSICAL REVIEW D66
(
10
)
11 2002

No go theorem for kinematic selfsimilarity with a polytropic equation of state
Peerreviewed
H Maeda, T Harada, H Iguchi, N Okuyama
PHYSICAL REVIEW D66
(
2
)
7 2002

Physical processes in naked singularity formation
Invited
Peerreviewed
T Harada, H Iguchi, KI Nakano
PROGRESS OF THEORETICAL PHYSICS107
(
3
)
449

524
3 2002

``Stability of SelfSimilar Solutions with Perfect Fluids''
Tomohiro Harada
Proceedings of the 11th Workshop on General Relativity and Gravitation, Jan 912, 2002, Tokyo, Japan, ed. J. Koga, K. Maeda, T. Nakamura and K. Tomita, p.73.
1 2002

Have we already detected astrophysical symptoms of spacetime noncommutativity?
Peerreviewed
Takashi Tamaki, Tomohiro Harada, Umpei Miyamoto, Takashi Torii
Physical Review D  Particles, Fields, Gravitation and Cosmology65
(
8
)
7
2002

Stability criterion for selfsimilar solutions with perfect fluids in general relativity
Peerreviewed
Tomohiro Harada
Classical and Quantum Gravity18
(
21
)
4549

4567
7 11 2001

Physical aspects of a naked singularity explosion: how does a naked singularity explode?
Peerreviewed
H Iguchi, T Harada
CLASSICAL AND QUANTUM GRAVITY18
(
17
)
3681

3699
9 2001

Newtonian analysis of gravitational waves due to the formation of a naked singularity
Peerreviewed
Kenichi Nakao, Tomohiro Harada
Physical Review D63
(
8
)
084003
12 3 2001

``Newtonian analysis of gravitational waves from naked singularity''
Peerreviewed
Kenichi Nakao, Hideo Iguchi, Tomohiro Harada
Phys. Rev. D63(8)
3 2001

Convergence to a selfsimilar solution in general relativistic gravitational collapse
Peerreviewed
Tomohiro Harada, Hideki Maeda
Physical Review D  Particles, Fields, Gravitation and Cosmology63
(
8
)
14
2001

Response of interferometric detectors to scalar gravitational waves
Peerreviewed
Kenichi Nakao, Tomohiro Harada, Masaru Shibata, Seiji Kawamura, Takashi Nakamura
Physical Review D  Particles, Fields, Gravitation and Cosmology63
(
8
)
14
2001

Convergence to a selfsimilar solution in general relativistic gravitational collapse
Peerreviewed
Tomohiro Harada, Hideki Maeda
Physical Review D63
(
8
)
2001

Naked singularities and quantum gravity
Peerreviewed
Tomohiro Harada, Hideo Iguchi, KenIchi Nakao, T. P. Singh, Takahiro Tanaka, Cenalo Vaz
Physical Review D64
(
4
)
2001

Reconstructing the equation of state for cold nuclear matter from the relationship of any two properties of neutron stars
Peerreviewed
Tomohiro Harada
Physical Review C  Nuclear Physics64
(
4
)
3
2001

Critical phenomena in Newtonian gravity
Peerreviewed
Hideki Maeda, Tomohiro Harada
Physical Review D  Particles, Fields, Gravitation and Cosmology64
(
12
)
7
2001

``Gravitational Memory ?  a Perturbative Analysis ''
Tomohiro Harada, B.J. Carr, C.A. Goymer
Proceedings of the 10th Workshop on General Relativity and Gravitation, Sep 1114, 2000, Osaka, Japan, ed. M. Sasaki et al., p.14. astroph/0102058.
9 2000

``Causal structure of an inflating magnetic monopole''
Peerreviewed
Nobuyuki Sakai, Kenichi Nakao, Tomohiro Harada
Phys. Rev. D61(12)
5 2000

Gravitational radiation from a naked singularity. II  Evenparity perturbation
Peerreviewed
H Iguchi, T Harada, K Nakao
PROGRESS OF THEORETICAL PHYSICS103
(
1
)
53

72
1 2000

Naked singularity explosion
Peerreviewed
Tomohiro Harada, Hideo Iguchi
Physical Review D  Particles, Fields, Gravitation and Cosmology61
(
10
)
2000

Power, energy, and spectrum of a naked singularity explosion
Peerreviewed
Tomohiro Harada
Physical Review D  Particles, Fields, Gravitation and Cosmology62
(
8
)
17
2000

Birth of a timelike naked singularity
Peerreviewed
Hideaki Kudoh
Physical Review D  Particles, Fields, Gravitation and Cosmology62
(
10
)
10
2000

``Naked Singularity Explosion''
Tomohiro Harada, Hideo Iguchi, Kenichi Nakao
Proceedings of the 9th Workshop on General Relativity and Gravitation, Nov 36, 1999, Hiroshima, Japan, ed. Y. Eriguchi et al., p.425.
11 1999

Nakedness and curvature strength of a shellfocusing singularity in spherically symmetric spacetime with vanishing radial pressure
Peerreviewed
T Harada, K Nakao, H Iguchi
CLASSICAL AND QUANTUM GRAVITY16
(
8
)
2785

2796
8 1999

Gravitational radiation from a naked singularity  Oddparity perturbation
Peerreviewed
H Iguchi, T Harada, K Nakao
PROGRESS OF THEORETICAL PHYSICS101
(
6
)
1235

1252
6 1999

Final Fate of Generic Gravitational Collapse  Is Shell Focusing Naked Singularity Realized? 
Tomohiro Harada
23 3 1999

Distanceredshift relation in an isotropic inhomogeneous universe: Spherically symmetric dustshell universe. II
Peerreviewed
Norimasa Sugiura, Kenichi Nakao, Tomohiro Harada
Physical Review D  Particles, Fields, Gravitation and Cosmology60
(
10
)
1999

``Spherical collapse of counterrotating particles and cosmic censorship''
Tomohiro Harada, Hideo Iguchi, Kenichi Nakao
Proceedings of the 8th Workshop on General Relativity and Gravitation, Oct 1922, 1998, Niigata, Japan, ed. Y. Eriguchi et al., p.377.
10 1998

``Naked singularity formation in the collapse of a spherical cloud of counterrotating particles''
Peerreviewed
Tomohiro Harada, Hideo Iguchi, Kenichi Nakao
Phys. Rev. D58(4)
7 1998

Neutron stars in scalartensor theories of gravity and catastrophe theory
Peerreviewed
Tomohiro Harada
Physical Review D  Particles, Fields, Gravitation and Cosmology57
(
8
)
4802

4811
1998

Gravitational waves around a naked singularity: Oddparity perturbation of LemaîtreTolmanBondi spacetime
Peerreviewed
Hideo Iguchi, Kenichi Nakao, Tomohiro Harada
Physical Review D  Particles, Fields, Gravitation and Cosmology57
(
12
)
7262

7273
1998

Final fate of the spherically symmetric collapse of a perfect fluid
Peerreviewed
Tomohiro Harada
Physical Review D  Particles, Fields, Gravitation and Cosmology58
(
10
)
1998

Distanceredshift relation in an isotropic inhomogeneous universe: Spherically symmetric dustshell universe
Peerreviewed
Norimasa Sugiura, Kenichi Nakao, Tomohiro Harada
Physical Review D  Particles, Fields, Gravitation and Cosmology58
(
10
)
1998

``Neutron Stars in ScalarTensor Theories of Gravity and Catastrophe Theory''
Tomohiro Harada
Proceedings of the 7th Workshop on General Relativity and Gravitation, Oct 2730, 1997, Kyoto, Japan, ed. Y. Eriguchi et al., p.90.
10 1997

Stability analysis of spherically symmetric star in scalartensor theories of gravity
Peerreviewed
T Harada
PROGRESS OF THEORETICAL PHYSICS98
(
2
)
359

379
8 1997

Scalar gravitational wave from OppenheimerSnyder collapse in scalartensor theories of gravity
Peerreviewed
T Harada, T Chiba, K Nakao, T Nakamura
PHYSICAL REVIEW D55
(
4
)
2024

2037
2 1997

Gravitational physics in scalartensor theories  Tests of strong field gravity
T Chiba, T Harada, K Nakao
PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT
(
128
)
335

372
1997

``Scalar Gravitational Wave from OppenheimerSnyder Collapse in ScalarTensor Theories of Gravity An Effective Mass of Scalar Field ''
Tomohiro Harada, Takeshi Chiba, Kenichi Nakao, Takashi Nakamura
Proceedings of the 6th Workshop on General Relativity and Gravitation, Dec 25, 1996, Tokyo, Japan, ed. H. Ishihara et al., p.196.
12 1996

Scalar gravitational waves from sphercally symmetric collapse of dust
3 1996