A Connection between Spectral Width and Energetics As Well As Peak Luminosity in Fermi Gamma-Ray Bursts
文献类型:期刊论文
作者 | Peng, Z. Y.1; Zhao XH(赵晓红)2; Yin, Y3; Wang, D. Z.1 |
刊名 | ASTROPHYSICAL JOURNAL |
出版日期 | 2019-08-10 |
卷号 | 881期号:1页码:12 |
ISSN号 | 0004-637X |
关键词 | gamma-ray burst: general methods: data analysis radiation mechanisms: general |
DOI | 10.3847/1538-4357/ab2b9b |
产权排序 | 第2完成单位 |
文献子类 | Article |
英文摘要 | 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. |
学科主题 | 天文学 ; 天体物理学 ; 高能天体物理学 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
WOS关键词 | BATSE OBSERVATIONS ; ENERGY ; CLASSIFICATION ; EMISSION |
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] |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000481512800012 |
资助机构 | 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] |
源URL | [http://ir.ynao.ac.cn/handle/114a53/20868] |
专题 | 云南天文台_丽江天文观测站(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. |
入库方式: OAI收割
来源:云南天文台
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