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Astrophysics > High Energy Astrophysical Phenomena

arXiv:1307.7708 (astro-ph)
[Submitted on 29 Jul 2013 (v1), last revised 13 Oct 2013 (this version, v3)]

Title:Cosmological Fast Radio Bursts from Binary White Dwarf Mergers

Authors:Kazumi Kashiyama, Kunihito Ioka, Peter Mészáros
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Abstract:Recently, Thornton et al. reported the detection of four fast radio bursts (FRBs). The dispersion measures indicate that the sources of these FRBs are at cosmological distance. Given the large full sky event rate ~ 10^4 sky^-1 day^-1, the FRBs are a promising target for multi-messenger astronomy. Here we propose double degenerate, binary white-dwarf (WD) mergers as the source of FRBs, which are produced by coherent emission from the polar region of a rapidly rotating, magnetized massive WD formed after the merger. The basic characteristics of the FRBs, such as the energetics, emission duration and event rate, can be consistently explained in this scenario. As a result, we predict that some FRBs can accompany type Ia supernovae (SNe Ia) or X-ray debris disks. Simultaneous detection could test our scenario and probe the progenitors of SNe Ia, and moreover would provide a novel constraint on the cosmological parameters. We strongly encourage future SN and X-ray surveys that follow up FRBs.
Comments: 5 pages, 1 figure, published in ApJL (submitted on 07/29/2013)
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE); Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Report number: KEK-TH-1397, KEK-Cosmo-49
Cite as: arXiv:1307.7708 [astro-ph.HE]
  (or arXiv:1307.7708v3 [astro-ph.HE] for this version)
  https://doi.org/10.48550/arXiv.1307.7708
Journal reference: The Astrophysical Journal 776 L39 (2013)
Related DOI: https://doi.org/10.1088/2041-8205/776/2/L39

Submission history

From: Kazumi Kashiyama [view email]
[v1] Mon, 29 Jul 2013 20:00:00 UTC (223 KB)
[v2] Mon, 5 Aug 2013 19:13:23 UTC (223 KB)
[v3] Sun, 13 Oct 2013 18:56:54 UTC (222 KB)
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