http://arxiv.org/abs/1907.10523
The observed light curves and the estimated full sky rate of the extragalactic fast x-ray transients, recently discovered with the Chandra x-ray observatory, indicate that they are early time x-ray afterglows of short gamma ray bursts (SGRBs) which point away from Earth. Their light curves are indistinguishable from those of the early time X-ray afterglows of SGRBs which point to Earth. Their full sky rate is consistent with the estimated rate of newly born millisecond pulsars in binary neutron stars mergers whose spin down seems to power the early time afterglow of SGRBs.
S. Dado and A. Dar
Thu, 25 Jul 19
30/72
Comments: 2 figures
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