Soft X-ray observation of the prompt emission of GRB 100418A

Ritsuko Imatani, Hiroshi Tomida, Satoshi Nakahira, Masashi Kimura, Takanori Sakamoto, Makoto Arimoto, Yoshitaka Morooka, Daisuke Yonetoku, Nobuyuki Kawai, Hiroshi Tsunemi

研究成果: Article

2 引用 (Scopus)

抜粋

We have observed the prompt emission of GRB 100418A from its beginning captured by the MAXI SSC (0.7-7 keV) on board the International Space Station followed by the Swift XRT (0.3-10 keV) observation. The light curve can be fitted by a combination of a power-law component and an exponential component (the decay constant is 31.6 ± 1.6 s). The X-ray spectrum is well expressed by the Band function with Ep ≤ 8.3 keV. This is the brightest gamma-ray burst showing a very low value of Ep. It satisfies the Yonetoku relation (Ep-Lp). It is also consistent with the Amati relation (Ep-Eiso) within a 2.5σ level.

元の言語English
ページ(範囲)S291-S297
ジャーナルPublications of the Astronomical Society of Japan
68
DOI
出版物ステータスPublished - 2016 6 1
外部発表Yes

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Imatani, R., Tomida, H., Nakahira, S., Kimura, M., Sakamoto, T., Arimoto, M., Morooka, Y., Yonetoku, D., Kawai, N., & Tsunemi, H. (2016). Soft X-ray observation of the prompt emission of GRB 100418A. Publications of the Astronomical Society of Japan, 68, S291-S297. https://doi.org/10.1093/pasj/psv075