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3. Merger and Postmerger of Binary Neutron Stars with a Quark-Hadron Crossover Equation of State.

Author

Huang YJ, Baiotti L, Kojo T, Takami K, Sotani H, Togashi H, Hatsuda T, Nagataki S, and Fan YZ

Abstract

Fully general-relativistic binary-neutron-star (BNS) merger simulations with quark-hadron crossover (QHC) equations of state (EOS) are studied for the first time. In contrast to EOS with purely hadronic matter or with a first-order quark-hadron phase transition (1PT), in the transition region QHC EOS show a peak in sound speed and thus a stiffening. We study the effects of such stiffening in the merger and postmerger gravitational (GW) signals. Through simulations in the binary-mass range 2.5

Published
2022
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