New evidence of multiple channels for the origin of gamma-ray bursts with extended emission

doi:10.1093/mnras/stad3619

	New evidence of multiple channels for the origin of gamma-ray bursts with extended emission
	Li, Q M 1; Sun QB(孙起斌)2; Zhang, Z B 1; Zhang, K J 1; Long G(龙刚)2
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2023-11-27
卷号	527 期号:3 页码:7111-7120
关键词	methods: statistical stars: formation gamma-ray burst: general
ISSN号	0035-8711
DOI	10.1093/mnras/stad3619
产权排序	第2完成单位
文献子类	Article
英文摘要	Gamma-ray bursts (GRBs) are the most intense explosions in the Universe. GRBs with extended emission (GRBs EE) constitute a small subclass of GRBs. GRBs EE are divided into EE-I GRBs and EE-II GRBs, according to the Amati empirical relationship rather than duration. We test here if these two types of GRB have different origins based on their luminosity function (and formation rate). Therefore, we use Lynden-Bell's c(-) method to investigate the luminosity function and formation rate of GRBs with EE without any assumption. We calculate the formation rate of two types of GRBs. For EE-I GRBs, the fitting function can be written as rho(z) proportional to (1 + z)(-0.34 +/- 0.04) for z < 2.39 and rho(z) proportional to (1 + z)(-2.34 +/- 0.24) for z > 2.39. The formation rate of EE-II can describe as rho(z) proportional to (1 + z)(-1.05 +/- 1.10) for z < 0.43 and rho(z) proportional to (1 + z)(-8.44 +/- 1.10) for z > 0.43. The local formation rate is rho(0) =0.03 Gpc(-3 )yr(-1)for some EE-IGRB sand rho(0) =0.32 Gpc(-3)yr(-1)for EE-I I GRBs . Based on these results, we provide new evidence that the origins of EE-I GRBs are different from EE-II GRBs from the perspective of event rate. The EE-I GRB could be produced from the death of the massive star, but EE-II GRB may come from other processes that are unrelated to the star formation rate. Our findings indicate that the GRBs with EE could have multiple production channels.
学科主题	天文学
URL标识	查看原文
出版地	GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
资助项目	Basic Research Project of Yunnan Province[202301AT070352]
WOS关键词	SPECTRAL PEAK ENERGY ; E-ISO RELATION ; LUMINOSITY FUNCTION ; COSMOLOGICAL EVOLUTION ; BATSE OBSERVATIONS ; COSMIC EVOLUTION ; INTERNAL SHOCKS ; NEUTRON-STAR ; EVENT RATE ; LONG
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:001119369400003
资助机构	Basic Research Project of Yunnan Province[202301AT070352]
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/26535]
专题	云南天文台_大样本恒星演化研究组
作者单位	1.Department of Physics, College of Physics, Guizhou University, Guiyang 550025, China; 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
推荐引用方式 GB/T 7714	Li, Q M,Sun QB,Zhang, Z B,et al. New evidence of multiple channels for the origin of gamma-ray bursts with extended emission[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2023,527(3):7111-7120.
APA	Li, Q M,孙起斌,Zhang, Z B,Zhang, K J,&龙刚.(2023).New evidence of multiple channels for the origin of gamma-ray bursts with extended emission.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,527(3),7111-7120.
MLA	Li, Q M,et al."New evidence of multiple channels for the origin of gamma-ray bursts with extended emission".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 527.3(2023):7111-7120.