The status of DECIGO

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 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,Kei-ichi 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,Ken-ichi Ueda,Masayoshi Utashima,Yaka Wakabayashi,Hiroshi Yamakawa,Kazuhiro Yamamoto,Toshitaka Yamazaki,Jun'ichi Yokoyama,Chul-Moon Yoo,Shijun Yoshida,Taizoh Yoshino

Journal of Physics Conference Series（2017）

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摘要

DECIGO (DECi-hertz Interferometer Gravitational wave Observatory) is the planned Japanese space gravitational wave antenna, aiming to detect gravitational waves from astrophysically and cosmologically significant sources mainly between 0.1 Hz and 10 Hz and thus to open a new window for gravitational wave astronomy and for the universe. DECIGO will consists of three drag-free spacecraft arranged in an equilateral triangle with 1000km arm lengths whose relative displacements are measured by a differential Fabry-Perot interferometer, and four units of triangular Fabry-Perot interferometers are arranged on heliocentric orbit around the sun. DECIGO is vary ambitious mission, we plan to launch DECIGO in era of 2030s after precursor satellite mission, B-DECIGO. B-DECIGO is essentially smaller version of DECIGO: B-DECIGO consists of three spacecraft arranged in an triangle with 100km arm lengths orbiting 2000km above the surface of the earth. It is hoped that the launch date will be late 2020s for the present..

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