Internal Plateau in Short GRBs and Quark Stars

Abstract

I summarize our recent calculations on quark stars (QSs), for the purpose of explaining some short gamma-ray bursts characterized by internal plateau in their early X-ray afterglow. According to the present plateau sample, the QS central engine model is demonstrated to more preferred than the original neutron star (NS) one. New QS equation of states (PMQS1, PMQS2, PMQS3) are then proposed, respecting fully the observed burst data and the mass distribution of the Galactic NS-NS systems.

Comments: Invited talk on Quarks and Compact Stars 2017 (QCS2017) Kyoto University, 19(Sun)-22(Wed), Feb.2017; JPS Conf. Proc. in press