Detecting radio afterglows of gamma-ray bursts with FAST

被引：16

作者：

Zhang, Zhi-Bin ^{[1
]}

Kong, Si-Wei ^{[2
]}

Huang, Yong-Feng ^{[3
]}

Li, Di ^{[4
]}

Li, Long-Biao ^{[1
]}

机构：

[1] Guizhou Univ, Coll Sci, Dept Phys, Guiyang 550025, Peoples R China

[2] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China

[3] Nanjing Univ, Dept Astron, Nanjing 210093, Jiangsu, Peoples R China

[4] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China

来源：

RESEARCH IN ASTRONOMY AND ASTROPHYSICS | 2015年 / 15卷 / 02期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

gamma rays: bursts; methods: numerical; telescopes; SWIFT XRT DATA; INITIAL LORENTZ FACTOR; LIGHT CURVES; X-RAY; OPTICAL AFTERGLOWS; ENERGY INJECTION; COMPREHENSIVE ANALYSIS; COMPLETE SAMPLE; EXTERNAL SHOCK; HIGH REDSHIFTS;

D O I：

10.1088/1674-4527/15/2/008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the generic hydrodynamic model of gamma-ray burst (GRB) after-glows, we calculate the radio afterglow light curves of low luminosity, high luminosity, failed and standard GRBs in different observational bands of FAST's energy window. The GRBs are assumed to be located at different distances from us. Our results rank the detectability of GRBs in descending order as high luminosity, standard, failed and low luminosity GRBs. We predict that almost all types of radio afterglows except those of low luminosity GRBs could be observed by a large radio telescope as long as the domains of time and frequency are appropriate. It is important to note that FAST can detect relatively weak radio afterglows at a higher frequency of 2.5 GHz for very high redshift up to z = 15 or even more. Radio afterglows of low luminosity GRBs can only be detected after the completion of the second phase of FAST. FAST is expected to significantly expand the sample of GRB radio afterglows in the near future.

引用

页码：237 / 251

页数：15

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