Radio afterglows and host galaxies of gamma-ray bursts
Li, LB; Zhang, ZB; Huang, YF; Wu, XF; Kong, SW; Li, D; Chang, HY; Choi, CS; Kong SW(孔思伟)
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2015
卷号451期号:2页码:1815-1823
关键词gamma-ray burst: general methods: data analysis methods: numerical methods: statistical radio continuum: ISM
学科分类Astronomy & Astrophysics
DOI10.1093/mnras/stv985
文章类型Article
英文摘要Considering the contribution of emission from the host galaxies of gamma-ray bursts (GRBs) to radio afterglows, we investigate the effect of host galaxies on observations statistically. For the three types of event, i.e. low-luminosity, standard and high-luminosity GRBs, it is found that a tight correlation exists between the ratio of the radio flux (RRF) of the host galaxy to the total radio peak emission and the observational frequency. Towards lower frequencies, in particular, the contribution from the host increases significantly. The correlation can be used to obtain a useful estimate for the radio brightness of those host galaxies that only have very limited radio afterglow data. Using this prediction, we reconsidered the theoretical radio afterglow light curves for four kinds of event: high-luminosity, low-luminosity, standard and failed GRBs, taking into account the contribution from host galaxies and aiming to explore the detectability of these events by the Five-hundred-metre Aperture Spherical radio Telescope (FAST). Lying at a typical redshift of z = 1, most of the events can be detected easily by FAST. For the less fierce low-luminosity GRBs, their radio afterglows are not strong enough to exceed the sensitivity limit of FAST at such distances. However, since a large number of low-luminosity bursts actually happen very near to us, it is expected that FAST will still be able to detect many of them.
类目[WOS]Astronomy & Astrophysics
收录类别SCI
WOS记录号WOS:000360830000053
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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.ihep.ac.cn/handle/311005/228749
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
中国科学院高能物理研究所_粒子天体物理中心
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Li, LB,Zhang, ZB,Huang, YF,et al. Radio afterglows and host galaxies of gamma-ray bursts[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2015,451(2):1815-1823.
APA Li, LB.,Zhang, ZB.,Huang, YF.,Wu, XF.,Kong, SW.,...&孔思伟.(2015).Radio afterglows and host galaxies of gamma-ray bursts.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,451(2),1815-1823.
MLA Li, LB,et al."Radio afterglows and host galaxies of gamma-ray bursts".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 451.2(2015):1815-1823.
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