Fast Radio Burst Energetics and Detectability from High Redshifts

doi:10.3847/2041-8213/aae8e3

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	Fast Radio Burst Energetics and Detectability from High Redshifts
	Zhang, Bing 1,2
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2018-11-10
卷号	867 期号:2 页码:7
关键词	radio continuum: general
ISSN号	2041-8205
DOI	10.3847/2041-8213/aae8e3
英文摘要	We estimate the upper limit redshifts of known fast radio bursts (FRBs) using the dispersion measure (DM)-redshift (z) relation and derive the upper limit peak luminosity L-p and energy E of FRBs within the observational band. The average z upper limits range from 0.17 to 3.10, the average L-p upper limits range from 1.24 x 10(42) erg s(-1) to 7.80 x 10(44) erg s(-1), and the average E upper limits range from 6.91 x 10(39) erg to 1.94 x 10(42) erg. FRB 160102 with DM = 2596.1 +/- 0.3 pc cm(-3) likely has a redshift greater than 3. Assuming that its intrinsic DM contribution from the host and FRB source is DMhost + DMscr similar to 100 pc cm(-3), such an FRB can be detected up to z similar to 3.6 by Parkes and the Five-hundred-meter Aperture Spherical radio Telescope (FAST) under ideal conditions up to z similar to 10.4. Assuming the existence of FRBs that are detectable at z similar to 15 by sensitive telescopes such as FAST, the upper limit DM for FRB searches may be set to similar to 9000 pc cm(-3). For single-dish telescopes, those with a larger aperture tend to detect more FRBs than those with a smaller aperture if the FRB luminosity function index alpha(L) is steeper than 2, and vice versa. In any case, large-aperture telescopes such as FAST are more capable of detecting high-z FRBs, even though most of FRBs detected by them are still from relatively low redshifts.
WOS关键词	GAMMA-RAY BURSTS ; REIONIZATION HISTORY ; COSMIC REIONIZATION ; HOST GALAXY ; PULSARS ; ENVIRONMENT ; CONSTRAINTS ; POPULATION ; AFTERGLOWS ; DISPERSION
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000449210800001
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/23125]
专题	中国科学院国家天文台
通讯作者	Zhang, Bing
作者单位	1.Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Bing. Fast Radio Burst Energetics and Detectability from High Redshifts[J]. ASTROPHYSICAL JOURNAL LETTERS,2018,867(2):7.
APA	Zhang, Bing.(2018).Fast Radio Burst Energetics and Detectability from High Redshifts.ASTROPHYSICAL JOURNAL LETTERS,867(2),7.
MLA	Zhang, Bing."Fast Radio Burst Energetics and Detectability from High Redshifts".ASTROPHYSICAL JOURNAL LETTERS 867.2(2018):7.