Quark Nova Model for Fast Radio Bursts [HEAP]

http://arxiv.org/abs/1505.08147


FRBs are puzzling, millisecond, energetic radio transients with no discernible source; observations show no counterparts in other frequency bands. The birth of a quark star from a parent neutron star experiencing a quark nova – previously thought undetectable when born in isolation – provides a natural explanation for the emission characteristics of FRBs. The generation of unstable r-process elements in the quark nova ejecta provides millisecond exponential injection of electrons into the surrounding strong magnetic field at the parent neutron star’s light cylinder via $\beta$-decay. This radio synchrotron emission has a total duration of hundreds of milliseconds and matches the observed spectrum while reducing the inferred dispersion measure by approximately 200 cm$^{-3}$ pc. The model allows indirect measurement of neutron star magnetic fields and periods in addition to providing astronomical measurements of $\beta$-decay chains of unstable neutron rich nuclei. Using this model, we can calculate expected FRB average energies ($\sim$ 10$^{41}$ ergs), spectra shapes and provide a theoretical framework for determining distances.

Read this paper on arXiv…

Z. Shand, A. Ouyed, N. Koning, et. al.
Mon, 1 Jun 15
12/62

Comments: 8 pages, 8 figures, 1 table