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The status of DECIGO

Journal of Physics Conference Series · 2017 · Vol. 840 · pp. 012010–012010

Shuichi Sato✉(Hosei University)Seiji Kawamura(The University of Tokyo)Masaki Ando(The University of Tokyo)Takashi Nakamura(Kyoto University)Kimio Tsubono(The University of Tokyo)A. Araya(The University of Tokyo)Ikkoh Funaki(Institute of Space and Astronautical Science)Kunihito Ioka(High Energy Accelerator Research Organization)Nobuyuki Kanda(Osaka City University)Shigenori Moriwaki(The University of Tokyo)Mitsuru Musha(University of Electro-Communications)Kazuhiro Nakazawa(The University of Tokyo)Kenji Numata(Goddard Space Flight Center)Shin-ichiro Sakai(Japan Aerospace Exploration Agency)Naoki Seto(National Astronomical Observatory of Japan)Takeshi Takashima(Japan Aerospace Exploration Agency)Takahiro Tanaka(Kyoto University)K. Agatsuma(The University of Tokyo)Koh-suke Aoyanagi(Waseda University)K. Arai(National Astronomical Observatory of Japan)Hideki Asada(Hirosaki University)Y. Aso(California Institute of Technology)Takeshi Chiba(Nihon University)Toshikazu Ebisuzaki(RIKEN)Yumiko Ejiri(Ochanomizu University)Motohiro Enoki(Tokyo Keizai University)Yoshiharu Eriguchi(The University of Tokyo)Masa-Katsu Fujimoto(National Astronomical Observatory of Japan)Ryuichi Fujita(Raman Research Institute)Mitsuhiro Fukushima(National Astronomical Observatory of Japan)Toshifumi Futamase(Tohoku University)Katsuhiko Ganzu(Kyoto University)Tomohiro Harada(Rikkyo University)Tatsuaki Hashimoto(Japan Aerospace Exploration Agency)K. HayamaWataru Hikida(Osaka University)Y. Himemoto(Shibaura Institute of Technology)H. Hirabayashi(Japan Aerospace Exploration Agency)Takashi Hiramatsu(The University of Tokyo)Feng-Lei Hong(National Institute of Advanced Industrial Science and Technology)Hideyuki Horisawa(Tokai University)Mizuhiko Hosokawa(National Institute of Information and Communications Technology)Kiyotomo Ichiki(The University of Tokyo)Takeshi Ikegami(National Institute of Advanced Industrial Science and Technology)Kaiki Taro Inoue(Kindai University)K. Ishidoshiro(The University of Tokyo)Hideki Ishihara(Osaka City University)Takehiko Ishikawa(Japan Aerospace Exploration Agency)Hideharu Ishizaki(National Astronomical Observatory of Japan)Hiroyuki Ito(National Institute of Information and Communications Technology)Y. Itoh(University of Wisconsin–Milwaukee)Nobuki Kawashima(Kindai University)Fumiko Kawazoe(Max Planck Institute for Gravitational Physics)Naoko Kishimoto(Institute of Space and Astronautical Science)Kenta Kiuchi(Waseda University)Shiho Kobayashi(Liverpool John Moores University)Kazunori KohriHiroyuki Koizumi(Institute of Space and Astronautical Science)Yasufumi Kojima(Hiroshima University)K. Kokeyama(Ochanomizu University)Wataru Kokuyama(The University of Tokyo)Kei Kotake(National Astronomical Observatory of Japan)Yoshihide Kozai(Gunma Astronomical Observatory)Hideaki Kudoh(The University of Tokyo)Hiroo Kunimori(National Institute of Information and Communications Technology)Hitoshi Kuninaka(Japan Aerospace Exploration Agency)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)Mutsuko Morimoto(Japan Aerospace Exploration Agency)T. Morioka(The University of Tokyo)Toshiyuki Morisawa(Kyoto University)Shinji Mukohyama(The University of Tokyo)Shigeo Nagano(National Institute of Information and Communications Technology)Isao NaitoK. Nakamura(National Astronomical Observatory of Japan)Hiroyuki Nakano(Rochester Institute of Technology)Ken-ichi Nakao(Osaka City University)Shinichi Nakasuka(The University of Tokyo)Yoshinori Nakayama(National Defense Academy of Japan)Erina Nishida(Ochanomizu University)Kazutaka Nishiyama(Japan Aerospace Exploration Agency)A. Nishizawa(Kyoto University)Yoshito Niwa(Kyoto University)Taiga Noumi(The University of Tokyo)Yoshiyuki Obuchi(National Astronomical Observatory of Japan)Masatake Ohashi(The University of Tokyo)N. Ohishi(National Astronomical Observatory of Japan)Masashi Ohkawa(Niigata University)Norio Okada(National Astronomical Observatory of Japan)Kouji Onozato(The University of Tokyo)Ken-ichi Oohara(Niigata University)Norichika SagoMotoyuki Saijo(Rikkyo University)Masa‐aki Sakagami(Kyoto University)S. Sakata(National Astronomical Observatory of Japan)Misao Sasaki(Kyoto University)Takashi Sato✉(Niigata University)Masaru Shibata(The University of Tokyo)H. Shinkai(Osaka Institute of Technology)K. Somiya(California Institute of Technology)Hajime Sotani(University of Tübingen)Naoshi Sugiyama(Nagoya University)Yudai Suwa(The University of Tokyo)Riéko Suzuki(Ochanomizu University)Hideyuki Tagoshi(Osaka University)Fuminobu Takahashi(Kavli Institute for the Physics and Mathematics of the Universe)Kakeru Takahashi(Kyoto University)Keitaro Takahashi(Kyoto University)Ryutaro Takahashi(Nagoya University)Ryuichi Takahashi(Nagoya University)Tadayuki Takahashi(Institute of Space and Astronautical Science)Hirotaka Takahashi(Nagaoka University of Technology)Takamori Akiteru(The University of Tokyo)Tadashi Takano(Nihon University)Keisuke Taniguchi(University of Wisconsin–Milwaukee)Atsushi Taruya(The University of Tokyo)Hiroyuki Tashiro(Kyoto University)Yasuo Torii(National Astronomical Observatory of Japan)Morio Toyoshima(National Institute of Information and Communications Technology)Shinji Tsujikawa(Tokyo University of Science)Y. Tsunesada(Tokyo Institute of Technology)Akitoshi Ueda(National Astronomical Observatory of Japan)Ken-ichi Ueda(University of Electro-Communications)Masayoshi Utashima(Japan Aerospace Exploration Agency)Yaka Wakabayashi(Ochanomizu University)Hiroshi Yamakawa(Kyoto University)Kazuhiro Yamamoto(Max Planck Institute for Gravitational Physics)Toshitaka Yamazaki(National Astronomical Observatory of Japan)Junichi Yokoyama(The University of Tokyo)Chul‐Moon Yoo(Osaka City University)Shijun Yoshida(Tohoku University)T. Yoshino(Nakamura Toho Research Institute)

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Abstract

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 1000 km 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 100 km arm lengths orbiting 2000 km above the surface of the earth. It is hoped that the launch date will be late 2020s for the present.

Pulsars and Gravitational Waves Research Geophysics and Gravity Measurements Gamma-ray bursts and supernovaePhysicsObservatoryAstronomySpacecraftGravitational wave

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