R
Ryuichi Takahashi
Researcher at Hirosaki University
Publications - 116
Citations - 6333
Ryuichi Takahashi is an academic researcher from Hirosaki University. The author has contributed to research in topics: Weak gravitational lensing & Gravitational wave. The author has an hindex of 34, co-authored 104 publications receiving 5240 citations. Previous affiliations of Ryuichi Takahashi include Nagoya University & Kyoto University.
Papers
More filters
Journal ArticleDOI
Revising the Halofit Model for the Nonlinear Matter Power Spectrum
Ryuichi Takahashi,Masanori Sato,Takahiro Nishimichi,Atsushi Taruya,Atsushi Taruya,Masamune Oguri +5 more
TL;DR: In this paper, a suite of state-of-the-art high-resolution N-body simulations is used to predict the nonlinear matter power spectrum in a universe dominated by cold dark matter.
Journal ArticleDOI
The Japanese space gravitational wave antenna DECIGO
Seiji Kawamura,Hiroo Kunimori,Mizuhiko Hosokawa,Ryuichi Fujita,Keiichi Maeda,Hisa-aki Shinkai,Takahiro Tanaka,Yaka Wakabayashi,Hideki Ishihara,Kazutaka Nishiyama,Ken-ichi Ueda,Kaiki Taro Inoue,Kazuhiro Yamamoto,Kunihito Ioka,Feng-Lei Hong,Yoshiki Tsunesada,Kenji Numata,Masaru Shibata,Hitoshi Kuninaka,Kazuhiro Hayama,Chul-Moon Yoo,Kazuhiro Agatsuma,Mitsuru Musha,Shinji Miyoki,Yasufumi Kojima,Yumiko Ejiri,Takamori Akiteru,Kentaro Somiya,Dan Chen,Tadayuki Takahashi,Shiho Kobayashi,Mitsuhiro Fukushima,Takashi Nakamura,Naoshi Sugiyama,Yuta Michimura,Yoshiyuki Obuchi,Ayaka Shoda,Kei Kotake,Shihori Sakata,Takeshi Chiba,Yoichi Aso,Shigeo Nagano,Tomohiro Harada,Kiwamu Izumi,Nobuyuki Kanda,Isao Kawano,Nobuki Kawashima,Yasuo Torii,Motohiro Enoki,Yoshiaki Himemoto,Hirotaka Takahashi,Yudai Suwa,Hisashi Hirabayashi,Hiroyuki Ito,Keitaro Takahashi,Kiyotomo Ichiki,Kazuhiro Nakazawa,Morio Toyoshima,Takashi Hiramatsu,Hiroyuki Nakano,Hiroyuki Koizumi,Ke-Xun Sun,Toshikazu Ebisuzaki,Kent Yagi,Takeshi Ikegami,Koji Arai,Kouji Nakamura,Norio Okada,Takeshi Takashima,Takehiko Ishikawa,K. Okada,Wataru Kokuyama,Kakeru Takahashi,Masa-Katsu Fujimoto,Ryuichi Takahashi,Ryo Saito,K. Tsubono,Osamu Miyakawa,Ken-ichi Oohara,Hideyuki Horisawa,Hideharu Ishizaki,Shigenori Moriwaki,Norichika Sago,Masashi Ohkawa,Fuminobu Takahashi,Tatsuaki Hashimoto,Takashi Sato,Sachiko Kuroyanagi,Umpei Miyamoto,Kazuaki Kuroda,Toshifumi Futamase,Fumiko Kawazoe,Hideyuki Tagoshi,Yoshinori Nakayama,Masatake Ohashi,Yoshiharu Eriguchi,Toshitaka Yamazaki,Tadashi Takano,Hiroshi Yamakawa,Kenta Kiuchi,Ken-ichi Nakao,Taiga Noumi,Kazunori Kohri,Shinichi Nakasuka,Wataru Hikida,Hideo Matsuhara,Isao Naito,Tomotada Akutsu,Shijun Yoshida,Nobuyuki Matsumoto,Masa-aki Sakagami,Naoko Ohishi,Ikkoh Funaki,Hajime Sotani,Taizoh Yoshino,Atsushi Taruya,Mutsuko Y. Morimoto,E. Nishida,Atsushi J. Nishizawa,Hideki Asada,Toshiyuki Morisawa,Shinji Mukohyama,Shuichi Sato,Keisuke Taniguchi,Yousuke Itoh,Shinji Tsujikawa,Rieko Suzuki,Keiko Kokeyama,Misao Sasaki,Naoki Seto,Koji Ishidoshiro,Ryutaro Takahashi,Shin-ichiro Sakai,Hiroyuki Tashiro,Motoyuki Saijo,Naoko Kishimoto,Masaki Ando,Akitoshi Ueda,Koh-suke Aoyanagi,Yoshihide Kozai,Masayoshi Utashima,Yoshito Niwa,Jun'ichi Yokoyama,Nobuyuki Tanaka,Akito Araya +144 more
Journal ArticleDOI
The Japanese space gravitational wave antenna?DECIGO
Seiji Kawamura,Masaki Ando,Takashi Nakamura,K. Tsubono,Takahiro Tanaka,I. Funaki,Naoki Seto,Kenji Numata,Shuichi Sato,Kunihito Ioka,Nobuyuki Kanda,T. Takashima,Kazuhiro Agatsuma,Tomotada Akutsu,Koh-suke Aoyanagi,Koji Arai,Y. Arase,Akito Araya,Hideki Asada,Yoichi Aso,Takeshi Chiba,Toshikazu Ebisuzaki,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 Taro Inoue,Koji Ishidoshiro,Hideki Ishihara,Takehiko Ishikawa,Hideharu Ishizaki,Hiroyuki Ito,Yousuke Itoh,S. 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,H. Kuninaka,Kazuaki Kuroda,Keiichi Maeda,Hideo Matsuhara,Yasushi Mino,Osamu Miyakawa,Shinji Miyoki,Mutsuko Y. Morimoto,T. Morioka,Toshiyuki Morisawa,Shigenori Moriwaki,Shinji Mukohyama,Mitsuru Musha,Shigeo Nagano,Isao Naito,N. Nakagawa,Kouji Nakamura,Hiroyuki Nakano,Ken-ichi Nakao,Shinichi Nakasuka,Yoshinori Nakayama,E. Nishida,Kazutaka Nishiyama,Atsushi J. Nishizawa,Yoshito Niwa,Masatake Ohashi,Naoko Ohishi,Masashi Ohkawa,Akira Okutomi,Kouji Onozato,K. Oohara,Norichika Sago,Motoyuki Saijo,Masa-aki Sakagami,Shin-ichiro Sakai,Shihori Sakata,Misao Sasaki,Takashi Sato,Masaru Shibata,Hisa-aki Shinkai,Kentaro Somiya,Hajime Sotani,Naoshi Sugiyama,Yudai Suwa,Hideyuki Tagoshi,Kakeru Takahashi,Tadayuki Takahashi,Hirotaka Takahashi,Ryuichi Takahashi,Akiteru Takamori,Tetsushi Takano,Keisuke Taniguchi,Atsushi Taruya,Hiroyuki Tashiro,M. Tokuda,Masao Tokunari,Morio Toyoshima,Shinji Tsujikawa,Yoshiki Tsunesada,Ken-ichi Ueda,Masayoshi Utashima,Hiroshi Yamakawa,Kazuhiro Yamamoto,Toshitaka Yamazaki,Jun'ichi Yokoyama,Chul-Moon Yoo,Shijun Yoshida,Taizoh Yoshino +131 more
TL;DR: DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) as discussed by the authors is the future Japanese space gravitational wave antenna, which aims at detecting various kinds of gravitational waves between 1 mHz and 100 Hz frequently enough to open a new window of observation for gravitational wave astronomy.
Journal ArticleDOI
The Subaru FMOS galaxy redshift survey (FastSound). IV. New constraint on gravity theory from redshift space distortions at z ∼ 1.4
Teppei Okumura,Chiaki Hikage,Tomonori Totani,Motonari Tonegawa,Hiroyuki Okada,Karl Glazebrook,Chris Blake,Pedro G. Ferreira,Surhud More,Atsushi Taruya,Atsushi Taruya,Shinji Tsujikawa,Masayuki Akiyama,Gavin Dalton,Gavin Dalton,Tomotsugu Goto,Takashi Ishikawa,Fumihide Iwamuro,Takahiko Matsubara,Takahiro Nishimichi,Kouji Ohta,Ikkoh Shimizu,Ryuichi Takahashi,Naruhisa Takato,Naoyuki Tamura,Kiyoto Yabe,Naoki Yoshida +26 more
TL;DR: In this article, the authors measured the redshift-space correlation function from a spectroscopic sample of 2783 emission line galaxies from the FastSound survey and obtained the first cosmological study at such high redshifts.
Journal ArticleDOI
Simulations of Wide-Field Weak Lensing Surveys. I. Basic Statistics and Non-Gaussian Effects
Masanori Sato,Takashi Hamana,Ryuichi Takahashi,Masahiro Takada,Naoki Yoshida,Takahiko Matsubara,Naoshi Sugiyama,Naoshi Sugiyama +7 more
TL;DR: In this paper, the authors study the convergence power spectrum and its covariance for a standard ΛCDM cosmology and compare the simulation results with analytic model predictions, and argue that a prior knowledge on the full distribution may be needed to obtain an unbiased estimate on the ensemble-averaged band power at each angular scale from a finite volume survey.