The rapidly flaring afterglow of the very bright and energetic GRB 070125
文献类型：期刊论文
| 作者 | Updike, Adria C.1; Haislip, Josh B.2; Nysewander, Melissa C.3; Fruchter, Andrew S.3; Kann, D. Alexander4; Klose, Sylvio4; Milne, Peter A.5; Williams, G. Grant6; Zheng, Weikang7; Hergenrother, Carl W.8 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2008-09-20 |
| 卷号 | 685期号:1页码:361-375 |
| 关键词 | gamma rays : bursts |
| 英文摘要 | We report on multiwavelength observations, ranging from X-ray to radio wave bands, of the IPN-localized gamma-ray burst GRB 070125. Spectroscopic observations reveal the presence of absorption lines due to O I, Si II, and C IV, implying a likely redshift of z = 1.547. The well-sampled light curves, in particular from 0.5 to 4 days after the burst, suggest a jet break at 3.7 days, corresponding to a jet opening angle of similar to 7.0 degrees, and implying an intrinsic GRB energy in the 1-10,000 keV band of around E(gamma) = (6.3-6.9) x 10(51) ergs (based on the fluences measured by the gamma-ray detectors of the IPN). GRB 070125 is among the brightest afterglows observed to date. The SED implies a host extinction of A(V) < 0. 9 mag. Two rebrightening episodes are observed, one with excellent time coverage, showing an increase in flux of 56% in similar to 8000s. The evolution of the afterglow light curve is achromatic at all times. Late-time observations of the afterglow do not show evidence for emission from an underlying host galaxy or supernova. Any host galaxy would be subluminous, consistent with current GRB host galaxy samples. Evidence for strong Mg II absorption features is not found, which is perhaps surprising in view of the relatively high redshift of this burst and the high likelihood for such features along GRB-selected lines of sight. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000259314200030 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7434]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA 2.Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA 3.Space Telescope Sci Inst, Baltimore, MD 21218 USA 4.Thuringer Landessternwarte Tautenburg, D-07778 Tautenburg, Germany 5.Univ Arizona, Steward Observ, Tucson, AZ 85721 USA 6.Univ Arizona, MMT Observ, Tucson, AZ 85721 USA 7.Natl Astron Observ, Beijing 100012, Peoples R China 8.Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA 9.Univ Calif Santa Cruz, Univ Calif Observ, Lick Observ, Santa Cruz, CA 95064 USA 10.Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA |
| 推荐引用方式 GB/T 7714 | Updike, Adria C.,Haislip, Josh B.,Nysewander, Melissa C.,et al. The rapidly flaring afterglow of the very bright and energetic GRB 070125[J]. ASTROPHYSICAL JOURNAL,2008,685(1):361-375. |
| APA | Updike, Adria C..,Haislip, Josh B..,Nysewander, Melissa C..,Fruchter, Andrew S..,Kann, D. Alexander.,...&Hartmann, Dieter H..(2008).The rapidly flaring afterglow of the very bright and energetic GRB 070125.ASTROPHYSICAL JOURNAL,685(1),361-375. |
| MLA | Updike, Adria C.,et al."The rapidly flaring afterglow of the very bright and energetic GRB 070125".ASTROPHYSICAL JOURNAL 685.1(2008):361-375. |
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来源：国家天文台
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