J-GEM follow-up observations to search for an optical counterpart of the first gravitational wave source GW150914

DOI DOI PDF 被引用文献16件 参考文献40件
  • Tomoki Morokuma
    1Institute of Astronomy, Graduate School of Science, The University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan
  • Masaomi Tanaka
    2National Astoronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
  • Yuichiro Asakura
    3Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
  • Fumio Abe
    3Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
  • Paul J. Tristram
    4Mt. John University Observatory, Lake Tekapo 8770, New Zealand
  • Yousuke Utsumi
    5Hiroshima Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
  • Mamoru Doi
    1Institute of Astronomy, Graduate School of Science, The University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan
  • Kenta Fujisawa
    6The Research Institute of Time Studies, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi 753-8511, Japan
  • Ryosuke Itoh
    7Department of Physical Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
  • Yoichi Itoh
    8Nishi-Harima Astronomical Observatory, University of Hyogo, 407-2 Nishigaichi, Sayo-cho, Sayo, Hyogo, 679-5313, Japan
  • Koji S. Kawabata
    5Hiroshima Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
  • Nobuyuki Kawai
    9Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8551, Japan
  • Daisuke Kuroda
    10Okayama Astrophysical Observatory, National Astronomical Observatory of Japan, 3037-5 Honjou, Kamogata, Asakuchi, Okayama 719-0232, Japan
  • Kazuya Matsubayashi
    11Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, Kyoto 606-8502, Japan
  • Kentaro Motohara
    1Institute of Astronomy, Graduate School of Science, The University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan
  • Katsuhiro L. Murata
    12Department of Particle and Astrophysical Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
  • Takahiro Nagayama
    13Graduate School of Science and Engineering, Kagoshima University, 1-21-35 Korimoto, Kagoshima, Kagoshima 890-0065, Japan
  • Kouji Ohta
    11Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, Kyoto 606-8502, Japan
  • Yoshihiko Saito
    9Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8551, Japan
  • Yoichi Tamura
    1Institute of Astronomy, Graduate School of Science, The University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan
  • Nozomu Tominaga
    14Department of Physics, Faculty of Science and Engineering, Konan University, 8-9-1 Higashinada-ku, Kobe, Hyogo 658-8501, Japan
  • Makoto Uemura
    5Hiroshima Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
  • Kenshi Yanagisawa
    10Okayama Astrophysical Observatory, National Astronomical Observatory of Japan, 3037-5 Honjou, Kamogata, Asakuchi, Okayama 719-0232, Japan
  • Yoichi Yatsu
    9Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8551, Japan
  • Michitoshi Yoshida
    5Hiroshima Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan

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<jats:title>Abstract</jats:title><jats:p>We present our optical follow-up observations to search for an electromagnetic counterpart of the first gravitational wave source GW150914 in the framework of the Japanese collaboration for Gravitational wave ElectroMagnetic follow-up (J-GEM), which is an observing group utilizing optical and radio telescopes in Japan, as well as in New Zealand, China, South Africa, Chile, and Hawaii. We carried out a wide-field imaging survey with the Kiso Wide Field Camera (KWFC) on the 1.05 m Kiso Schmidt telescope in Japan and a galaxy-targeted survey with Tripole5 on the B&C 61 cm telescope in New Zealand. Approximately 24 deg2 regions in total were surveyed in i-band with KWFC and 18 nearby galaxies were observed with Tripole5 in g-, r-, and i-bands 4–12 days after the gravitational wave detection. Median 5 σ depths are i ∼ 18.9 mag for the KWFC data and g ∼ 18.9 mag, r ∼ 18.7 mag, and i ∼ 18.3 mag for the Tripole5 data. The probability for a counterpart to be in the observed area is 1.2% in the initial skymap and 0.1% in the final skymap. We do not find any transient source associated to an external galaxy with spatial offset from its center, which is consistent with the local supernova rate.</jats:p>

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