SUCRA(さくら: Saitama University Cyber Repository of Academic Resources)は、埼玉大学に在籍する研究者の学術雑誌論文、紀要論文、科学研究費補助金成果報告書、学位論文、研究発表プレゼン資料などを登録し、広く世界に発信しています。 埼玉大学に在籍する皆様は、著作物をSUCRAを通じて発信することができます。詳しくは「成果物の登録方法」をご覧ください。
Butler, N, R
Li, W
Perley, D
Huang, K, Y
Urata, Y
Prochaska, J, X
Bloom, J, S
Filippenko, A, V
Foley, R, J
Kocevski, D
Chen, H, W
Qiu, Y
Kuo, P, H
Huang, F, Y
Ip, W, H
Tamagawa, T
Onda, K
Tashiro, Makoto
Makishima, K
Nishihara, S
Sarugaku, Y
著者 所属
埼玉大学理学部物理学科
埼玉大学大学院理工学研究科物質科学部門
著者 所属(別言語)
Space Sciences Laboratory, University of California
Astronomy Department, University of California
Astronomy Department, University of California
Institute of Astronomy, National Central University
Department of Physics, Faculty of Science, Saitama University
Department of Astronomy and Astrophysics, University of California
Astronomy Department, University of California
Astronomy Department, University of California
Astronomy Department, University of California
Astronomy Department, University of California
Department of Astronomy and Astrophysics, University of Chicago
National Astronomical Observatories, Chinese Academy of Sciences
Institute of Astronomy, National Central University
Institute of Astronomy, National Central University
Institute of Astronomy, National Central University
RIKEN (Institute of Physical and Chemical Research)
Department of Physics, Faculty of Science, Saitama University
Department of Physics, Faculty of Science, Saitama University
Department of Physics, University of Tokyo
Institute of Space and Astronautical Science, Japan Aerospace Exploration
Institute of Space and Astronautical Science, Japan Aerospace Exploration
雑誌名
ASTROPHYSICAL JOURNAL
巻
652
号
2
ページ
1390 - 1399
発行年
2006
年月次
2006-1
出版者名
University of Chicago Press
ISSN
0004637X
DOI
info:doi/10.1086/508624
抄録
Even with the renaissance in gamma-ray burst (GRB) research fostered by the Swift satellite, few bursts have both contemporaneous observations at long wavelengths and exquisite observations at later times across the electromagnetic spectrum. We present here contemporaneous imaging with the KAIT robotic optical telescope, dense optical sampling with Lulin, supplemented with infrared data from PAIRITEL and radio to gamma-ray data from the literature. For the first time, we can test the constancy of microphysical parameters in the internal-external shock paradigm and carefully trace the flow of energy from the GRB to the surrounding medium. KAIT data taken P1 minute after the start of GRB 051111 and coinciding with the fading gamma-ray tail of the prompt emission indicate a smooth reinjection of energy into the shock. No color change is apparent in observations beginning similar to 1.5 minutes after the GRB and lasting for the first hour after the burst. There are achromatic flux modulations about the best-fit model at late (t approximate to 10(4) s) times, possibly due to variations in the external density. We find that the host galaxy extinction is well fit by a curve similar to that of the Small Magellanic Cloud. Low visual extinction, A(V) approximate to 0.2 mag, combined with high column densities determined from the X-ray and optical spectroscopy (N-H > 10(21) cm(-2)), indicate a low dust-to-metals ratio and a possible overabundance of the light metals. An apparent small ratio of total to selective extinction (R-V approximate to 2) argues against dust destruction by the GRB. Time constancy of both the IR/optical/UV spectral energy distribution and the soft X-ray absorption suggests that the absorbing material is not local to the GRB.
When do internal shocks end and external shocks begin? Early-time broadband modeling of GRB 051111
A1002268.pdf
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SUCRAの概要
