A fast radio burst in the direction of the Virgo Cluster

被引：18

作者：

Agarwal, Devansh ^{[1
,2
]}

Lorimer, Duncan R. ^{[1
,2
]}

Fialkov, Anastasia ^{[3
,4
,5
]}

Bannister, Keith W. ^{[6
]}

Shannon, Ryan M. ^{[7
]}

Farah, Wael ^{[7
]}

Bhandari, Shivani ^{[6
]}

Macquart, Jean-Pierre ^{[8
]}

Flynn, Chris ^{[7
]}

Pignata, Giuliano ^{[9
,10
]}

Tejos, Nicolas ^{[11
]}

Gregg, Benjamin ^{[8
]}

Oslowski, Stefan ^{[7
]}

Rajwade, Kaustubh ^{[12
]}

Mickaliger, Mitchell B. ^{[12
]}

Stappers, Benjamin W. ^{[12
]}

Li, Di ^{[13
,14
]}

Zhu, Weiwei ^{[13
]}

Qian, Lei ^{[13
]}

Yue, Youling ^{[13
]}

Wang, Pei ^{[13
]}

Loeb, Abraham ^{[15
]}

机构：

[1] West Virginia Univ, Dept Phys & Astron, POB 6315, Morgantown, WV 25606 USA

[2] West Virginia Univ, Ctr Gravitat Waves & Cosmol, Chestnut Ridge Res Bldg, Morgantown, WV 26505 USA

[3] Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England

[4] Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England

[5] Univ Sussex, Dept Phys & Astron, Brighton BN1 9QH, E Sussex, England

[6] CSIRO, Australia Telescope Natl Facil, Astron & Space Sci, Box 76, Epping, NSW 1710, Australia

[7] Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia

[8] Univ Massachusetts, Dept Astron, Amherst, MA 01002 USA

[9] Univ Andres Bello, Dept Ciencias Fis, Avda Republ 252, Santiago, Chile

[10] Millennium Inst Astrophys MAS, Nuncio Monsenor Sotero Sanz 100, Santiago, Chile

[11] Pontificia Univ Catolica Valparaiso, Inst Fis, Casilla 4059, Valparaiso, Chile

[12] Univ Manchester, Jodrell Bank Ctr Astrophys, Oxford Rd, Manchester M13 9PL, Lancs, England

[13] Chinese Acad Sci, Natl Astron Observ, CAS Key Lab FAST, Beijing 10010, Peoples R China

[14] Univ KwaZulu Natal, NAOC UKZN Computat Astrophys Ctr, ZA-4000 Durban, South Africa

[15] Harvard Univ, Astron Dept, 60 Garden St, Cambridge, MA 02138 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2019年 / 490卷 / 01期

基金：

欧洲研究理事会; 澳大利亚研究理事会;

关键词：

surveys; radio continuum: general; GALAXIES; POPULATION;

D O I：

10.1093/mnras/stz2574

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The rate of fast radio bursts (FRBs) in the direction of nearby galaxy clusters is expected to be higher than the mean cosmological rate if intrinsically faint FRBs are numerous. In this paper, we describe a targeted search for faint FRBs near the core of the Virgo Cluster using the Australian Square Kilometre Array Pathfinder telescope. During 300 h of observations, we discovered one burst, FRB 180417, with dispersion measure (DM) = 474.8 cm(-3) pc. The FRB was promptly followed up by several radio telescopes for 27 h, but no repeat bursts were detected. An optical follow-up of FRB 180417 using the PROMPT5 telescope revealed no new sources down to an R-band magnitude of 20.1. We argue that FRB 180417 is likely behind the Virgo Cluster as the Galactic and intracluster DM contribution are small compared to the DM of the FRB, and there are no galaxies in the line of sight. The non-detection of FRBs from Virgo constrains the faint-end slope, alpha < 1.52 (at 68 per cent confidence limit), and the minimum luminosity, L-min greater than or similar to 2 x 10(40) erg s(-1) (at 68 per cent confidence limit), of the FRB luminosity function assuming cosmic FRB rate of 10(4) FRBs per sky per day with flux above 1 Jy located out to redshift of 1. Further FRB surveys of galaxy clusters with high-sensitivity instruments will tighten the constraints on the faint end of the luminosity function and, thus, are strongly encouraged.

引用

页码：1 / 8

页数：8

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