A Connection between Spectral Width and Energetics As Well As Peak Luminosity in Fermi Gamma-Ray Bursts

doi:10.3847/1538-4357/ab2b9b

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	A Connection between Spectral Width and Energetics As Well As Peak Luminosity in Fermi Gamma-Ray Bursts
	Peng, Z. Y.1; Zhao XH(赵晓红)2 ; Yin, Y 3; Wang, D. Z.1
发表期刊	ASTROPHYSICAL JOURNAL
	2019-08-10
卷号	881 期号:1 页码:12
DOI	10.3847/1538-4357/ab2b9b
产权排序	第2完成单位
收录类别	SCI
关键词	gamma-ray burst: general methods: data analysis radiation mechanisms: general
摘要	We have revisited the spectral width in the EFE spectrum of gamma-ray bursts with the BEST peak flux P and time-integrated F spectral data provided by the Fermi GBM Burst Catalog. We first compute the BEST spectral widths to compare with some typical physics models. Our analysis results consist with the previous results: blackbody emission alone cannot explain the observed spectrum and most of the observed spectra cannot be interpreted by the synchrotron radiation. We then check the correlations between the spectral width and the observable model-independent burst properties of duration, fluence, and peak flux and find that positive correlations exist between them for both the P and F spectra. Moreover, the short burst appears to extend the correlation found for the long burst. We further demonstrate that these positive correlations also exist in the cosmological rest frame; that is, the spectral width correlates with the isotropic-equivalent energy E-iso as well as the isotropic-equivalent peak luminosity L-iso for different energy bands and timescales. Our results show that the wider bursts have larger energy and luminosity. Moreover, short bursts would appear to extend this trend qualitatively. Taking the Amati relation into account, we tend to believe that the spectral shape is related to energy and luminosity.
资助项目	National Natural Science Foundation of China[11763009] ; National Natural Science Foundation of China[11263006] ; National Natural Science Foundation of China[U1831135] ; Yunnan Natural Science Foundation[2014FB188] ; Natural Science Fund of the Education Department of Guizhou Province[KY2015455] ; Natural Science Fund of the Liupanshui Normal College[LPSSY201401]
项目资助者	National Natural Science Foundation of China[11763009] ; National Natural Science Foundation of China[11263006] ; National Natural Science Foundation of China[U1831135] ; Natural Science Foundation of Yunnan Province[2014FB188] ; Natural Science Fund of the Education Department of Guizhou Province[KY2015455] ; Natural Science Fund of the Liupanshui Normal College[LPSSY201401]
语种	英语
学科领域	天文学 ; 天体物理学 ; 高能天体物理学
文章类型	Article
出版者	IOP PUBLISHING LTD
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN	0004-637X
URL	查看原文
WOS记录号	WOS:000481512800012
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	BATSE OBSERVATIONS ; ENERGY ; CLASSIFICATION ; EMISSION
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/20869
专题	南方基地
通讯作者	Peng, Z. Y.
作者单位	1.College of Physics and Electronics, Yunnan Normal University, Kunming 650500, People's Republic of China 2.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, People's Republic of China 3.Department of Electrical Engineering, Liupanshui Normal University, LiuPanShui 553004, People's Republic of China
推荐引用方式 GB/T 7714	Peng, Z. Y.,Zhao XH,Yin, Y,et al. A Connection between Spectral Width and Energetics As Well As Peak Luminosity in Fermi Gamma-Ray Bursts[J]. ASTROPHYSICAL JOURNAL,2019,881(1):12.
APA	Peng, Z. Y.,Zhao XH,Yin, Y,&Wang, D. Z..(2019).A Connection between Spectral Width and Energetics As Well As Peak Luminosity in Fermi Gamma-Ray Bursts.ASTROPHYSICAL JOURNAL,881(1),12.
MLA	Peng, Z. Y.,et al."A Connection between Spectral Width and Energetics As Well As Peak Luminosity in Fermi Gamma-Ray Bursts".ASTROPHYSICAL JOURNAL 881.1(2019):12.

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