タムラ タダヒサ   Tamura Tadahisa
  田村 忠久
   所属   神奈川大学  工学部 物理学教室
    神奈川大学大学院  工学研究科 工学専攻(応用物理学領域)
   職種   教授
言語種別 英語
発行・発表の年月 2018/08
形態種別 学術雑誌
査読 査読あり
標題 Search for GeV Gamma-Ray Counterparts of Gravitational Wave Events by CALET
執筆形態 共著
掲載誌名 The Astrophysical Journal
掲載区分国外
出版社・発行元 The American Astronomical Society
巻・号・頁 863(160),pp.1-9
著者・共著者 O. Adriani, T. Tamura, et al.
概要 We present the results of searches for gamma-ray counterparts of the LIGO/Virgo gravitational wave events using CALET observations. The main instrument of CALET observes gamma-rays from ~1 GeV up to 10 TeV with a field of view of nearly 2 sr. The CALET observations on the International Space Station started in 2015 October, and here we report analyses of events associated with the following gravitational wave events. Although only upper limits on gamma-ray emission are obtained, they correspond to a luminosity of 10^49 ~ 10^53 erg s^-1 in the GeV energy band depending on the distance and the assumed time duration of each event, which is approximately on the order of luminosity of typical short gamma-ray bursts. We also show the sensitivity of CALET for gamma-ray transient events, which is on the order of 10^-7 erg cm^-2 s^−1 for an observation of 100 s in duration.
DOI https://doi.org/10.3847/1538-4357/aad18f