A Galactic origin for the fast radio burst FRB010621

被引：40

作者：

Bannister, K. W. ^{[1
]}

Madsen, G. J. ^{[2
,3
]}

机构：

[1] CSIRO Astron & Space Sci, Epping, NSW 1710, Australia

[2] Univ Sydney, Sch Phys, Sydney Inst Astron SIfA, Sydney, NSW 2006, Australia

[3] Univ Sydney, ARC Ctr Excellence All Sky Astrophys CAASTRO, Sydney, NSW 2006, Australia

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2014年 / 440卷 / 01期

基金：

澳大利亚研究理事会;

关键词：

pulsars: general; ISM: structure; DIFFUSE IONIZED-GAS; H-II REGIONS; FILLING FACTORS; POPULATION; PULSAR; TRANSIENTS; DISCOVERY;

D O I：

10.1093/mnras/stu220

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The recent detection of fast radio bursts has generated strong interest in identifying the origin of these bright, non-repeating, highly dispersed pulses. The principal limitation in understanding the origin of these bursts is the lack of reliable distance estimates; their high dispersion measures imply that they may be at cosmological distances (0.1 < z < 1.0). Here, we discuss new distance constraints to the FRB010621 (a.k.a J1852-08) first reported by Keane. We use velocity resolved H alpha and H beta observations of diffuse ionized gas towards the burst to calculate an extinction-corrected emission measure along the line of sight. We combine this emission measure with models of Galactic rotation and of electron distribution to derive a 90 per cent probability of the pulse residing in the Galaxy. However, we cannot differentiate between the two Galactic interpretations of Keane: a neutron star with unusual pulse amplitude distribution or Galactic black hole annihilation.

引用

页码：353 / 358

页数：6

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