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The Japanese space gravitational wave antenna—DECIGO

Classical and Quantum Gravity · 2006 · Vol. 23(8) · pp. S125–S131

Seiji Kawamura✉(National Astronomical Observatory of Japan)Takashi Nakamura(Kyoto University)Masaki Ando(Tokyo University of Science)Naoki Seto(California Institute of Technology)Kimio Tsubono(The University of Tokyo)Kenji Numata(Goddard Space Flight Center)Ryuichi Takahashi(National Astronomical Observatory of Japan)Shigeo Nagano(National Institute of Information and Communications Technology)Takehiko Ishikawa(Institute of Space and Astronautical Science)Mitsuru Musha(University of Electro-Communications)Ken‐ichi Ueda(University of Electro-Communications)Takashi Sato(Niigata University)Mizuhiko Hosokawa(National Institute of Information and Communications Technology)K. Agatsuma(The University of Tokyo)T. Akutsu(The University of Tokyo)Koh-suke Aoyanagi(Waseda University)K. Arai(National Astronomical Observatory of Japan)Akito Araya(The University of Tokyo)Hideki Asada(Hirosaki University)Y. Aso(Tokyo University of Science)Takeshi Chiba(Nihon University)Toshikazu Ebisuzaki(Nippon Soken (Japan))Yoshiharu Eriguchi(Tokyo University of Science)Masa‐Katsu Fujimoto(National Astronomical Observatory of Japan)Mitsuhiro Fukushima(National Astronomical Observatory of Japan)Toshifumi Futamase(Tohoku University)Katsuhiko Ganzu(Kyoto University)Tomohiro Harada(Kyoto University)Tatsuaki Hashimoto(Japan Aerospace Exploration Agency)K. Hayama(National Astronomical Observatory of Japan)Wataru Hikida(Kyoto University)Y. Himemoto(Tokyo University of Science)H. Hirabayashi(Japan Aerospace Exploration Agency)Takashi Hiramatsu(The University of Tokyo)Kiyotomo Ichiki(National Astronomical Observatory of Japan)Takeshi Ikegami(National Institute of Advanced Industrial Science and Technology)Kaiki Taro Inoue(Kindai University)Kunihito Ioka(Kyoto University)K. Ishidoshiro(Tokyo University of Science)Y. Itoh(University of Wisconsin–Milwaukee)S Kamagasako(Tokyo University of Science)Nobuyuki Kanda(Osaka City University)Nobuki Kawashima(Kindai University)H Kirihara(The University of Tokyo)Kenta Kiuchi(Waseda University)Shiho Kobayashi(Liverpool John Moores University)Kazunori Kohri(Center for Astrophysics Harvard & Smithsonian)Yasufumi Kojima(Hiroshima University)K. Kokeyama(Ochanomizu University)Yoshihide Kozai(Gunma Astronomical Observatory)Hideaki Kudoh(The University of Tokyo)Hiroo Kunimori(National Institute of Information and Communications Technology)Kazuaki Kuroda(The University of Tokyo)Kei‐ichi Maeda(Waseda University)Hideo Matsuhara(Institute of Space and Astronautical Science)Yasushi Mino(California Institute of Technology)O. Miyakawa(California Institute of Technology)S. Miyoki(The University of Tokyo)Hiromi Mizusawa(Niigata University)Toshiyuki Morisawa(Kyoto University)Shinji Mukohyama(The University of Tokyo)Isao Naito(Saitama Prefecture)N. Nakagawa(Tokyo University of Science)K. Nakamura(Saitama Prefecture)Hiroyuki Nakano(Osaka City University)Ken-ichi Nakao(Osaka City University)A. Nishizawa(Kyoto University)Yoshito Niwa(Kyoto University)Choetsu Nozawa(Niigata University)M. Ohashi(The University of Tokyo)N. Ohishi(National Astronomical Observatory of Japan)Masashi Ohkawa(Niigata University)Akira Okutomi(Tokyo University of Science)Ken-ichi Oohara(Niigata University)Norichika Sago(Osaka University)Motoyuki Saijo(Observatoire de Paris)Masa‐aki Sakagami(Kyoto University)S. Sakata(Ochanomizu University)Misao Sasaki(Kyoto University)Shuichi Sato(National Astronomical Observatory of Japan)Masaru Shibata(Tokyo University of the Arts)H. Shinkai(Inamori Foundation)K. Somiya(Max Planck Institute for Gravitational Physics)Hajime Sotani(Waseda University)Naoshi Sugiyama(National Astronomical Observatory of Japan)Hideyuki Tagoshi(Osaka University)Tadayuki Takahashi(Institute of Space and Astronautical Science)Hirotaka Takahashi(Max Planck Institute for Gravitational Physics)Ryutaro Takahashi(National Astronomical Observatory of Japan)Tadashi Takano(Institute of Space and Astronautical Science)Takahiro Tanaka(Kyoto University)Keisuke Taniguchi(University of Illinois Urbana-Champaign)Atsushi Taruya(The University of Tokyo)Hiroyuki Tashiro(Kyoto University)Masao Tokunari(Tokyo University of Science)Shinji Tsujikawa(The University of Tokyo)Y. Tsunesada(Tokyo Institute of Technology)Kazuhiro Yamamoto(The University of Tokyo)Toshitaka Yamazaki(National Astronomical Observatory of Japan)Junichi Yokoyama(The University of Tokyo)Chul‐Moon Yoo(Osaka City University)Shijun Yoshida(Waseda University)T. Yoshino(Nakamura Toho Research Institute)

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Abstract

DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is the future Japanese space gravitational wave antenna. It 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. The pre-conceptual design of DECIGO consists of three drag-free satellites, 1000 km apart from each other, whose relative displacements are measured by a Fabry–Perot Michelson interferometer. We plan to launch DECIGO in 2024 after a long and intense development phase, including two pathfinder missions for verification of required technologies.

Pulsars and Gravitational Waves Research Geophysics and Gravity Measurements Radio Astronomy Observations and TechnologyPhysicsGravitational waveGravitational-wave observatoryInterferometryAstronomyObservatoryPathfinderAntenna (radio)Remote sensingTelecommunications