Intensity distribution function and statistical properties of fast radio bursts

doi:10.1088/1674-4527/17/1/6

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	Intensity distribution function and statistical properties of fast radio bursts
	Zhang, ZB; Li, LB; Li B(李兵); Li, B; Li, D; Huang, YF
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS天文和天体物理学研究
	2017
卷号	17 期号:1 页码:6
关键词	pulsars: general stars: neutron radio continuum: general intergalactic medium methods:statistical
ISSN号	1674-4527
DOI	10.1088/1674-4527/17/1/6
文献子类	Article
英文摘要	Fast Radio Bursts (FRBs) are intense radio flashes from the sky that are characterized by millisecond durations and Jansky-level flux densities. We carried out a statistical analysis on FRBs that have been discovered. Their mean dispersion measure, after subtracting the contribution from the interstellar medium of our Galaxy, is found to be similar to 660 pc cm(3), supporting their being from a cosmological origin. Their energy released in the radio band spans about two orders of magnitude, with a mean value of similar to 10(39) erg. More interestingly, although the study of FRBs is still in a very early phase, the published collection of FRBs enables us to derive a useful intensity distribution function. For the 16 non-repeating FRBs detected by the Parkes telescope and the Green Bank Telescope, the intensity distribution can be described as dN/dF(obs) = (4.1 +/- 1.3) x 10(3) F-obs(-1.1 +/- 0.2) sky(-1)d(-1), where F-obs is the observed radio fluence in units of Jy ms. Here the power-law index is significantly flatter than the expected value of 2.5 for standard candles distributed homogeneously in a flat Euclidean space. Based on this intensity distribution function, the Five-hundred-meter Aperture Spherical radio Telescope (FAST) is predicted to be able to detect about five FRBs for every 1000 h of observation time.
WOS关键词	GAMMA-RAY BURSTS ; NEUTRON-STARS ; GIANT PULSES ; COSMOLOGICAL DISTANCES ; SUPERGIANT PULSES ; CRAB PULSAR ; BLACK-HOLES ; POPULATION ; SEARCH ; AFTERGLOWS
WOS研究方向	Astronomy & Astrophysics
语种	英语
WOS记录号	WOS:000396489000006
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284919]
专题	高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Zhang, ZB,Li, LB,Li B,et al. Intensity distribution function and statistical properties of fast radio bursts[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS天文和天体物理学研究,2017,17(1):6.
APA	Zhang, ZB,Li, LB,李兵,Li, B,Li, D,&Huang, YF.(2017).Intensity distribution function and statistical properties of fast radio bursts.RESEARCH IN ASTRONOMY AND ASTROPHYSICS天文和天体物理学研究,17(1),6.
MLA	Zhang, ZB,et al."Intensity distribution function and statistical properties of fast radio bursts".RESEARCH IN ASTRONOMY AND ASTROPHYSICS天文和天体物理学研究 17.1(2017):6.