| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
Infrared/optical-X-ray simultaneous observations of X-ray flares in GRB 071112C and GRB 080506 |
|
言語 |
en |
| 作成者 |
Uehara, Takeshi
Uemura, Makoto
Kawabata, Koji S
Fukazawa, Yasushi
Yamazaki, Ryo
Arai, Akira
Sasada, Mahito
Ohsugi, Takashi
Mizuno, Tsunefumi
Takahashi, Hiromitsu
Katagiri, Hideaki
Yamashita, Takuya
Ohno, Masanori
Sato, Goro
Sato, Shuji
Kino, Masaru
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
Copyright (c) 2010 The European Southern Observatory |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
gamma-ray burst |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
individual |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
GRB 071112C – gamma-ray burst |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
individual |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
GRB 080506 |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
440 |
| 内容記述 |
|
|
内容記述 |
Aims. We investigate the origin of short X-ray flares which are occasionally observed in early stages of afterglows of gamma-ray bursts (GRBs). Methods. We observed two Swift events, GRB 071112C and GRB 080506, before the start of X-ray flares in the optical and near-infrared (NIR) bands with the 1.5-m Kanata telescope. In conjunction with published X-ray and optical data, we analyzed densely sampled light curves of the early afterglows and spectral energy distributions (SEDs) in the NIR-X-ray ranges. Results. We found that the SEDs had a break between the optical and X-ray bands in the normal decay phases of both GRBs regardless of the model for the correction of the interstellar extinction in host galaxies of GRBs. In the X-ray flares, X-ray flux increased by 3 and 15 times in the case of GRB 071112C and 080506, respectively, and the X-ray spectra became harder than those in the normal decay phases. No significant variation in the optical-NIR range was detected together with the X-ray flares. Conclusions. These results suggest that the X-ray flares were associated with either late internal shocks or external shocks from two-component jets. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
EDP Sciences S A |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1051/0004-6361/201014272 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1051/0004-6361/201014272 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0004-6361 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00553195 |
| 開始ページ |
|
|
開始ページ |
A56-1 |
| 書誌情報 |
Astronomy & Astrophysics
Astronomy & Astrophysics
巻 519,
p. A56-1-A56-9,
発行日 2010-09
|
| 旧ID |
30783 |
AstronAstrophys_519_A56.pdf (384.6 KB)
