X-Ray Afterglows of GRBs 050318 and 060124 and their External Shock Origin
文献类型：期刊论文
| 作者 | Jin Zhang2 ; Yi PingQin1; Fu WenZhang2; Bin BinZhang2
|
| 刊名 | Chinese Journal of Astronomy and Astrophysics
 |
| 出版日期 | 2007 |
| 卷号 | 7期号:4页码:516 |
| ISSN号 | 1009-9271 |
| 英文摘要 | The observations with Swift X-ray telescope (XRT) challenge the conventional gamma-ray burst model in many aspects. The XRT light curves are generally composed of four consecutive segments, i.e., a steep decay segment, a shallow decay segment, a normal decay segment, a jet-like steep decay segment, and sometimes erratic flares as well. The phys-ical origin of the X-ray emission is highly debatable. We focus here on the physical origin of the X-ray emissions of GRBs 050318 and 060124. We present the XRT light curves and spectra of the two bursts. The light curve decay slopes of the two bursts are normal, and their relations to the spectral indices are consistent with the prediction of the standard forward shock model. The multi-wavelength light curves at 0.5keV, 1.0keV, 2.0keV and 4.0keV can be reproduced by this model with an isotropic kinetic energy E_k = 2.2×10~(52) erg, ε_e = 0.04, B = 0.01 for GRB 050318 and E_k = 4.2×10~(53) erg, ε_e = 0.05, B = 0.01 for GRB 060124. These facts suggest that the normal decay phases of the X-rays for the two bursts are of the forward shock origin. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/40654]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.广州大学 2.中国科学院国家天文台 |
| 推荐引用方式 GB/T 7714 | Jin Zhang,Yi PingQin,Fu WenZhang,et al. X-Ray Afterglows of GRBs 050318 and 060124 and their External Shock Origin[J]. Chinese Journal of Astronomy and Astrophysics,2007,7(4):516. |
| APA | Jin Zhang,Yi PingQin,Fu WenZhang,&Bin BinZhang.(2007).X-Ray Afterglows of GRBs 050318 and 060124 and their External Shock Origin.Chinese Journal of Astronomy and Astrophysics,7(4),516. |
| MLA | Jin Zhang,et al."X-Ray Afterglows of GRBs 050318 and 060124 and their External Shock Origin".Chinese Journal of Astronomy and Astrophysics 7.4(2007):516. |
入库方式： OAI收割
来源：国家天文台
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