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Cosmic reionization of hydrogen and helium: contribution from both mini-quasars and stars
Hao JM; Yuan YF; Wang L
2015
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume451Issue:2Pages:1875-1882
AbstractConsidering 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.
Subject Area天文和天体物理
Indexed BySCI
Language英语
WOS IDWOS:000360830000058
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/14877
Collection南极天文中心
Recommended Citation
GB/T 7714
Hao JM,Yuan YF,Wang L. Cosmic reionization of hydrogen and helium: contribution from both mini-quasars and stars[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2015,451(2):1875-1882.
APA Hao JM,Yuan YF,&Wang L.(2015).Cosmic reionization of hydrogen and helium: contribution from both mini-quasars and stars.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,451(2),1875-1882.
MLA Hao JM,et al."Cosmic reionization of hydrogen and helium: contribution from both mini-quasars and stars".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 451.2(2015):1875-1882.
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