Year: 2015
Type: article
Abstract: 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.
DOI: 10.1093/pasj/psv075
Authors: Ritsuko Imatani, Hiroshi Tomida, Satoshi Nakahira, Masashi Kimura, Takanori Sakamoto, Makoto Arimoto, Yoshitaka Morooka, Daisuke Yonetoku, Nobuyuki Kawai, Hiroshi Tsunemi
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: Identification of Gravitational Wave Sources with X-ray Transient Monitor and Study of Black Hole Formation Mechanism, G3786626934, Development of X-ray imaging detector for gamma-ray bursts over 13.5 billion light years, Cosmic evolution study by using a combination between the high sensitivity X-ray CCD and the super mirror, Revealing MAXI unidentified short transient by prompt followup
OpenAlex ID: W1613291760