The luminosity function of Swift long gamma-ray bursts
The luminosity function of Swift long gamma-ray bursts
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Swift长伽马射线暴的光度函数
DOI：
10.1111/j.1365-2966.2011.19194.x
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发表时间：
2011-01
影响因子：
4.8
通讯作者：
Zheng, Xiao-Ping
中科院分区：
文献类型：
--
作者：
Cao, Xiao-Feng;Yu, Yun-Wei;Cheng, K. S.;Zheng, Xiao-Ping
长伽马射线暴（GRBs）的形成率可能遵循宇宙恒星形成率（SFR）并结合宇宙金属丰度演化。因此，原则上可以通过对红移 - 光度进行建模来探究伽马射线暴的光度函数（LF）
The formation rate of long gamma-ray bursts (GRBs) could follow the cosmic star formation rate (SFR) incorporating with cosmic metallicity evolution. Therefore, the luminosity function (LF) of GRBs can in principle be explored by modeling the redshift-luminosity distributions of Swift observed GRBs. For an assumed LF form as �z(L) / e −L p/L (L=Lp) −� (1 + z) � , we found that (1) the approximate broken-power law distribution of the luminosities of the Swift observed GRBs is probably caused by the luminosity selection of the telescope by reducing the number of the GRBs with low luminosities, (2) the evolution of the LF could approach to be very weak, i.e., � � 0, if the GRB environments are metal-poor as Z < (0:1 0:3)Z� , and (3) the slope of the LF can be derived to be within � � (1:55 1:72) by fitting the redshift distribution of the GRBs and qualitatively explaining the luminosity distribution. Finally, we also suggest an empirical detection efficiency as a function of flux for the Swift Burst Alert Telescope (BAT) in order to model the logN logP distribution of the GRBs.
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DOI：
10.1088/0004-637x/736/1/7
发表时间：
2011-05
期刊：
The Astrophysical Journal
影响因子：
--
作者：
A. Cucchiara;A. Cucchiara;A. Cucchiara;A. Levan;D. Fox;N. Tanvir;T. Ukwatta;T. Ukwatta;E. Berger
通讯作者：
A. Cucchiara;A. Cucchiara;A. Cucchiara;A. Levan;D. Fox;N. Tanvir;T. Ukwatta;T. Ukwatta;E. Berger
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DOI：
10.1111/j.1365-2966.2010.16691.x
发表时间：
2009-12
影响因子：
4.8
作者：
Lu, Rui-Jing;Zhang, Shuang-Nan;Liang, En-Wei;Qin, Shu-Fu;Wei, Jian-Yan
通讯作者：
Wei, Jian-Yan
DOI：
10.1086/421285
发表时间：
2003-09
期刊：
The Astrophysical Journal
影响因子：
--
作者：
D. Yonetoku;T. Murakami;T. Nakamura;R. Yamazaki;A. Inoue;K. University;Kyoto University;O. Universit
通讯作者：
D. Yonetoku;T. Murakami;T. Nakamura;R. Yamazaki;A. Inoue;K. University;Kyoto University;O. Universit
DOI：
10.1086/426136
发表时间：
2004-09
期刊：
The Astrophysical Journal Letters
影响因子：
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作者：
D. Guetta;R. Perna;L. Stella;M. Vietri
通讯作者：
D. Guetta;R. Perna;L. Stella;M. Vietri
DOI：
10.1111/j.1745-3933.2009.00751.x
发表时间：
2009-11
影响因子：
--
作者：
Fayin Wang;Z. Dai
通讯作者：
Fayin Wang;Z. Dai