Quark nova inside supernova: Application to GRBs and XROs

Details Quark nova inside supernova: Application to GRBs and XROs Quark nova inside supernova: Application to GRBs and XROs

2010-05-11

arxiv.org/abs/1005.1874v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

13 pages, 3 figures, 1 table. To appear in Proceedings for "Compact stars in the QCD phase diagram II (CSQCD II), May 20-24, 2

Scientific paper

In this paper we consider a quark nova occurring inside an exploding star. The quark nova ejecta will shock when interacting with the stellar envelope. When this shock reaches the surface of the star, the energy is radiated away. We suggest that this energy may be seen in X-rays, and show here that this may explain some flares seen in the X-ray afterglow of long gamma ray bursts (GRBs). A quark nova inside an exploding star need not be followed by a GRB, or the GRB may not be beamed towards us. However, the shock breakout is likely not beamed and could be seen even in the absence of a GRB. We suggest that XRO 080109 is such an event in which a quark nova occurs inside an exploding star. No GRB is formed, but the break out of the shock leads to the XRO.

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