Multiband analyses of the bright GRB 230812B and the associated SN2023pel

doi:10.1093/mnras/stae503

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	Multiband analyses of the bright GRB 230812B and the associated SN2023pel
	Hussenot-Desenonges, T.57; Wouters, T.55,56; Guessoum, N.54; Abdi, I.54; Abulwfa, A.53; Adami, C.52; Fernández, J. F.51; Ahumada, T.50; Aivazyan, V.48,49; Akl, D.54
刊名	Monthly Notices of the Royal Astronomical Society
	2024-05-01
卷号	530 期号:1 页码:1-19
关键词	methods: statistical techniques: photometric techniques: spectroscopic gamma ray burst: individual: GRB 230812B gamma ray bursts transients: supernovae
ISSN号	0035-8711
DOI	10.1093/mnras/stae503
产权排序	第48完成单位
文献子类	Journal article (JA)
英文摘要	GRB 230812B is a bright and relatively nearby (z = 0.36) long gamma-ray burst (GRB) that has generated significant interest in the community and has thus been observed over the entire electromagnetic spectrum. We report over 80 observations in X-ray, ultraviolet, optical, infrared, and submillimetre bands from the GRANDMA (Global Rapid Advanced Network for Multimessenger Addicts) network of observatories and from observational partners. Adding complementary data from the literature, we then derive essential physical parameters associated with the ejecta and external properties (i.e. the geometry and environment) of the GRB and compare with other analyses of this event. We spectroscopically confirm the presence of an associated supernova, SN2023pel, and we derive a photospheric expansion velocity of v ∼ 17 × 103 km s-1. We analyse the photometric data first using empirical fits of the flux and then with full Bayesian inference. We again strongly establish the presence of a supernova in the data, with a maximum (pseudo-)bolometric luminosity of 5.75 × 1042 erg s-1, at 15.76+-10.2181 d (in the observer frame) after the trigger, with a half-max time width of 22.0 d. We compare these values with those of SN1998bw, SN2006aj, and SN2013dx. Our best-fitting model favours a very low density environment (log10(nISM/cm-3) = -2.38+-11.6045) and small values for the jet's core angle θcore = 1.54+-01.8102 deg and viewing angle θobs = 0.76+-01.7629 deg. GRB 230812B is thus one of the best observed afterglows with a distinctive supernova bump. © 2024 The Author(s).
学科主题	天文学
URL标识	查看原文
资助项目	H2020 European Research Council[101071865];Office of Advanced Cyberinfrastructure[2137603];Office of Advanced Cyberinfrastructure[2138259];Office of Advanced Cyberinfrastructure[2138286];Office of Advanced Cyberinfrastructure[2138296];Office of Advanced Cyberinfrastructure[2138307];Arkansas Science and Technology Authority[45779];University of California[AST200029];Ministerstvo Zdravotnictví Ceské Republiky[LM2023032];Ministerstvo Zdravotnictví Ceské Republiky[LM2023047]
语种	英语
资助机构	H2020 European Research Council[101071865] ; Office of Advanced Cyberinfrastructure[2137603, 2138259, 2138286, 2138296, 2138307] ; Arkansas Science and Technology Authority[45779] ; University of California[AST200029] ; Ministerstvo Zdravotnictví Ceské Republiky[LM2023032, LM2023047]
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/27058]
专题	云南天文台_丽江天文观测站（南方基地）
作者单位	1.Mathematics, Informatics, Physics and Earth Science Department, University of Messina, Via F.D. D'Alcontres 31, Polo Papardo, Messina, I-98166, Italy 2.GEPI, Observatoire de Paris, Université PSL, CNRS, 5 place Jules Janssen, Meudon, F-92190, France; 3.SOAR Telescope/NSF's NOIRLab, Avda Juan Cisternas 1500, La Serena, 1700000, Chile; 4.Institute of Astronomy and NAO, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee Blvd., Sofia, 1784, Bulgaria; 5.INAF-Osservatorio Astronomico di Roma, Via di Frascati 33, RM, Monte Porzio Catone, I-00040, Italy; 6.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650011, China; 7.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, China; 8.FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1999/2, Praha, CZ-182 21, Czech Republic; 9.Department of Astrophysics, IMAPP, Radboud University, Nijmegen, NL-6525 AJ, Netherlands; 10.Yunnan Observatories, Chinese Academy of Sciences, Yunnan Province, Kunming, 650011, China;
推荐引用方式 GB/T 7714	Hussenot-Desenonges, T.,Wouters, T.,Guessoum, N.,et al. Multiband analyses of the bright GRB 230812B and the associated SN2023pel[J]. Monthly Notices of the Royal Astronomical Society,2024,530(1):1-19.
APA	Hussenot-Desenonges, T..,Wouters, T..,Guessoum, N..,Abdi, I..,Abulwfa, A..,...&Zhu, Z..(2024).Multiband analyses of the bright GRB 230812B and the associated SN2023pel.Monthly Notices of the Royal Astronomical Society,530(1),1-19.
MLA	Hussenot-Desenonges, T.,et al."Multiband analyses of the bright GRB 230812B and the associated SN2023pel".Monthly Notices of the Royal Astronomical Society 530.1(2024):1-19.