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| Spectropolarimetry and photometry of the early afterglow of the gamma-ray burst GRB 191221B | |
Buckley, D A H1,2; Bagnulo, S3; Britto, R J4; Mao JR(毛基荣)5,6,7 ; Kann, D A8; Cooper, J4; Lipunov, V9,10; Hewitt, D M1,2; Razzaque, S11; Kuin, N P M12; Monageng, I M1,2; Covino, S13; Jakobsson, P14; Horst, A J van der15,16; Wiersema, K17,18; Böttcher, M19; Campana, S13; D’Elia, V20,21; Gorbovskoy, E S9; Gorbunov, I9; Groenewald, D N1,22; Hartmann, D H23; Kornilov, V G9,10; Mundell, C G24; Podesta, R25,26; Thomas, J K1; Tyurina, N9; Vlasenko, D9,10; Soelen, B van4; Xu, D27
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| 发表期刊 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 2021-08-11 | |
| 卷号 | 506期号:3页码:4621-4631 |
| DOI | 10.1093/mnras/stab1791 |
| 产权排序 | 第5完成单位 |
| 收录类别 | SCI ; EI |
| 关键词 | magnetic fields gamma-ray bursts high energy astrophysics polarimetry shocks jets |
| 摘要 | We report on results of spectropolarimetry of the afterglow of the long gamma-ray burst GRB 191221B, obtained with SALT/RSS and VLT/FORS2, as well as photometry from two telescopes in the MASTER Global Robotic Network, at the MASTER-SAAO (South Africa) and MASTER-OAFA (Argentina) stations. Prompt optical emission was detected by MASTER-SAAO 38 s after the alert, which dimmed from a magnitude (white-light) of similar to 10-16.2 mag over a period of similar to 10 ks, followed by a plateau phase lasting similar to 10 ks and then a decline to similar to 18 mag after 80 ks. The light curve shows complex structure, with four or five distinct breaks in the power-law decline rate. SALT/RSS linear spectropolarimetry of the afterglow began similar to 2.9 h after the burst, during the early part of the plateau phase of the light curve. Absorption lines seen at similar to 6010 and 5490 angstrom are identified with the Mg ii 2799 angstrom line from the host galaxy at z = 1.15 and an intervening system located at z = 0.96. The mean linear polarization measured over 3400-8000 angstrom was similar to 1.5 per cent and the mean equatorial position angle (theta) was similar to 65 degrees. VLT/FORS2 spectropolarimetry was obtained similar to 10 h post-burst, during a period of slow decline (alpha = -0.44), and the polarization was measured to be p = 1.2 per cent and theta = 60 degrees. Two observations with the MeerKAT radio telescope, taken 30 and 444 d after the GRB trigger, detected radio emission from the host galaxy only. We interpret the light curve and polarization of this long GRB in terms of a slow-cooling forward shock. |
| 资助项目 | SALT under programme[2018-2-LSP-001] ; MNiSWMinistry of Science and Higher Education, Poland[DIR/WK/2016/07] ; National Research Foundation (NRF) of South AfricaNational Research Foundation - South Africa ; South African Research Chairs Initiative[64789] ; Department of Science and Innovation ; NRF[111749] ; University of Johannesburg Research Council ; Spanish National Research ProjectSpanish Government[RTI2018-098104-J-I00] ; UK Space Agency ; State University Development Program ; RFBR grantRussian Foundation for Basic Research (RFBR)[19-29-11011] ; ESO programme[0104.D-0600(C)] |
| 项目资助者 | SALT under programme[2018-2-LSP-001] ; MNiSWMinistry of Science and Higher Education, Poland[DIR/WK/2016/07] ; National Research Foundation (NRF) of South AfricaNational Research Foundation - South Africa ; South African Research Chairs Initiative[64789] ; Department of Science and Innovation ; NRF[111749] ; University of Johannesburg Research Council ; Spanish National Research ProjectSpanish Government[RTI2018-098104-J-I00] ; UK Space Agency ; State University Development Program ; RFBR grantRussian Foundation for Basic Research (RFBR)[19-29-11011] ; ESO programme[0104.D-0600(C)] |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学 |
| 文章类型 | Article |
| 出版者 | OXFORD UNIV PRESS |
| 出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
| ISSN | 0035-8711 |
| URL | 查看原文 |
| WOS记录号 | WOS:000767866400001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | LINEAR-POLARIZATION ; REVERSE SHOCK ; OPTICAL AFTERGLOW ; MAGNETIC-FIELDS ; RADIO ; EMISSION ; PROMPT ; MODELS ; LIGHT ; POLARIMETRY |
| EI入藏号 | 20221712023882 |
| EI主题词 | Astrophysics |
| EI分类号 | 657.2 Extraterrestrial Physics and Stellar Phenomena - 931.3 Atomic and Molecular Physics - 932.1 High Energy Physics - 941.4 Optical Variables Measurements |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/24789 |
| 专题 | 星系类星体研究组 |
| 通讯作者 | Buckley, D A H |
| 作者单位 | 1.South African Astronomical Observatory, PO Box 9, Observatory Road, Observatory 7935, Cape Town, South Africa; 2.Department of Astronomy, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa; 3.Armagh Observatory and Planetarium, College Hill, Armagh BT61 9DG, UK; 4.Department of Physics, University of the Free State, PO Box 339, Bloemfontein 9300, South Africa; 5.Yunnan Observatories, Chinese Academy of Sciences, 650011 Kunming, Yunnan Province, China; 6.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, 100012 Beijing, China; 7.Key Laboratory for the Structure and Evolution of CelestialObjects, Chinese Academy of Sciences, 650011 Kunming, China; 8.Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, E-18008 Granada, Spain; 9.Physics Department, SAI,M. V. Lomonosov Moscow State University, 13 Univeristetskij pr-t, Moscow 119991, Russia; 10.Physics Department, M. V. Lomonosov Moscow State University, Leninskie gory, GSP-1, Moscow 119991, Russia; 11.Centre for Astro-Particle Physics (CAPP) and Department of Physics, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa; 12.Mullard Space Science Laboratory, Department of Space and Climate Sciences, University College London, Holmbury St Mary, Dorking RH5 6NT, UK; 13.Brera Astronomical Observatory, Via Bianchi 46, I-23807 Merate(LC), Italy; 14.Centre for Astrophysics and Cosmology, Science Institute, University of Iceland, Dunhagi 5, 107, Reykjavík, Iceland; 15.Department of Physics, The George Washington University, 725 21st Street NW, Washington, DC 20052, USA; 16.Astronomy, Physics and Statistics Institute of Sciences (APSIS), The George Washington University, Washington, DC 20052, USA; 17.Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; 18.Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK; 19.Centre for Space Research, North West University, Potchefstroom, 2520, South Africa; 20.ASI – Space Science Data Center, Via del Politecnico snc, I-00133 Rome, Italy; 21.INAF – Osservatorio Astronomico di Roma, Via Frascati 33, I-00040 Monte Porzio Catone, Italy; 22.Southern African Large Telescope Foundation, PO Box 9, Observatory Road, Observatory 7935, Cape Town, South Africa; 23.Department of Physics and Astronomy, Clemson University, Clemson, SC 29634-0978, USA; 24.Department of Physics, University of Bath, Claverton Down, Bath BA2 7AY, UK; 25.Observatorio Astronomico Felix Aguilar (OAFA), Avda Benavides s/n, Rivadavia, El Leonsito, 5413, Argentina; 26.San Juan National University, OAFA, Casilla de Correo 49, 5400 San Juan, Argentina; 27.CAS Key Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China |
| 推荐引用方式 GB/T 7714 | Buckley, D A H,Bagnulo, S,Britto, R J,et al. Spectropolarimetry and photometry of the early afterglow of the gamma-ray burst GRB 191221B[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,506(3):4621-4631. |
| APA | Buckley, D A H.,Bagnulo, S.,Britto, R J.,Mao JR.,Kann, D A.,...&Xu, D.(2021).Spectropolarimetry and photometry of the early afterglow of the gamma-ray burst GRB 191221B.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,506(3),4621-4631. |
| MLA | Buckley, D A H,et al."Spectropolarimetry and photometry of the early afterglow of the gamma-ray burst GRB 191221B".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 506.3(2021):4621-4631. |
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