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27 April 2024 |
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Article overview
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Are the distributions of Fast Radio Burst properties consistent with a cosmological population? | | M.Caleb
; C.Flynn
; M.Bailes
; E.D.Barr
; R.W.Hunstead
; E.F.Keane
; V.Ravi
; W. van Straten
; | | Date: |
9 Dec 2015 | | Abstract: | High time resolution radio surveys over the last few years have discovered a
population of millisecond-duration transient bursts called Fast Radio Bursts
(FRBs), which remain of unknown origin. FRBs exhibit dispersion consistent with
propagation through a cold plasma and dispersion measures indicative of an
origin at cosmological distances. In this paper we perform Monte Carlo
simulations of a cosmological population of FRBs, based on assumptions
consistent with observations of their energy distribution, their spatial
density as a function of redshift and the properties of the interstellar and
intergalactic media. We examine whether the dispersion measures, fluences,
inferred redshifts, signal-to-noises and effective widths of known FRBs are
consistent with a cosmological population. Statistical analyses indicate that
at least 50 events at Parkes are required to distinguish between a constant
co-moving FRB density, and a FRB density that evolves with redshift like the
cosmological star formation rate density. | | Source: | arXiv, 1512.2738 | | Services: | Forum | Review | PDF | Favorites | |
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