GRANDMA and HXMT Observations of GRB 221009A: The Standard Luminosity Afterglow of a Hyperluminous Gamma-Ray Burst—In Gedenken an David Alexander Kann | |
Kann,D. A.67; Agayeva,S.66; Aivazyan,V.64,65; Alishov,S.66; Andrade,C. M.63; Antier,S.62; Baransky,A.61; Bendjoya,P.60; Benkhaldoun,Z.59; Beradze,S.64,65 | |
刊名 | The Astrophysical Journal Letters |
2023-05-01 | |
卷号 | 948期号:2 |
ISSN号 | 2041-8205 |
DOI | 10.3847/2041-8213/acc8d0 |
产权排序 | 第43完成单位 |
英文摘要 | Abstract Object GRB 221009A is the brightest gamma-ray burst (GRB) detected in more than 50 yr of study. In this paper, we present observations in the X-ray and optical domains obtained by the GRANDMA Collaboration and the Insight Collaboration. We study the optical afterglow with empirical fitting using the GRANDMA+HXMT-LE data sets augmented with data from the literature up to 60 days. We then model numerically using a Bayesian approach, and we find that the GRB afterglow, extinguished by a large dust column, is most likely behind a combination of a large Milky Way dust column and moderate low-metallicity dust in the host galaxy. Using the GRANDMA+HXMT-LE+XRT data set, we find that the simplest model, where the observed afterglow is produced by synchrotron radiation at the forward external shock during the deceleration of a top-hat relativistic jet by a uniform medium, fits the multiwavelength observations only moderately well, with a tension between the observed temporal and spectral evolution. This tension is confirmed when using the augmented data set. We find that the consideration of a jet structure (Gaussian or power law), the inclusion of synchrotron self-Compton emission, or the presence of an underlying supernova do not improve the predictions. Placed in the global context of GRB optical afterglows, we find that the afterglow of GRB 221009A is luminous but not extraordinarily so, highlighting that some aspects of this GRB do not deviate from the global known sample despite its extreme energetics and the peculiar afterglow evolution. |
学科主题 | 天文学 ; 恒星与银河系 ; 恒星形成与演化 |
语种 | 英语 |
出版者 | The American Astronomical Society |
WOS记录号 | IOP:APJL_948_2_L12 |
内容类型 | 期刊论文 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/26077] |
专题 | 云南天文台_中国科学院天体结构与演化重点实验室 |
通讯作者 | Antier,S. |
作者单位 | 1.American University of Sharjah, Sharjah, UAE 2.Center for Astronomy and Space Sciences, China Three Gorges University, Yichang 443000, People’s Republic of China 3.Beijing Planetarium, Beijing Academy of Science and Technology, Beijing, 100044, People’s Republic of China 4.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China 5.Observatoire de la C?te d’Azur, CNRS, UMS Galilée, France 6.Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM, F-91191, Gif-sur-Yvette, France 7.INFN, Laboratori Nazionali del Sud, I-95125 Catania, Italy 8.Department of Astronomy and Meteorology, Faculty of Science, Al-Azhar University, 11884 Nasr City, Cairo, Egypt 9.National Center Junior Academy of Sciences of Ukraine, Dehtiarivska St. 38-44, Kyiv, 04119, Ukraine 10.Astronomy and Space Physics Department, Taras Shevchenko National University of Kyiv, Glushkova Ave., 4, Kyiv, 03022, Ukraine |
推荐引用方式 GB/T 7714 | Kann,D. A.,Agayeva,S.,Aivazyan,V.,et al. GRANDMA and HXMT Observations of GRB 221009A: The Standard Luminosity Afterglow of a Hyperluminous Gamma-Ray Burst—In Gedenken an David Alexander Kann[J]. The Astrophysical Journal Letters,2023,948(2). |
APA | Kann,D. A..,Agayeva,S..,Aivazyan,V..,Alishov,S..,Andrade,C. M..,...&Zhao,X. F..(2023).GRANDMA and HXMT Observations of GRB 221009A: The Standard Luminosity Afterglow of a Hyperluminous Gamma-Ray Burst—In Gedenken an David Alexander Kann.The Astrophysical Journal Letters,948(2). |
MLA | Kann,D. A.,et al."GRANDMA and HXMT Observations of GRB 221009A: The Standard Luminosity Afterglow of a Hyperluminous Gamma-Ray Burst—In Gedenken an David Alexander Kann".The Astrophysical Journal Letters 948.2(2023). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论