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Hypermassive Supramassive hybrid stars as neutron star merger remnants

arunavam edited this page Sep 16, 2020 · 3 revisions

Dr. Matthias Hanauske (Frankfurt University)

Date/Time: 22nd September (Tuesday), 2020, 3:30 pm IST

Abstract:

Hypermassive/supramassive hybrid stars (HMHS,SMHS) are extreme astrophysical objects that could be produced in the merger of a binary system of compact stars. In contrast to their purely hadronic counterparts, hypermassive/supramassive neutron stars (HMNS,SMNS), these highly differentially rotating objects contain deconfined strange quark matter in their slowly rotating inner region. HMHS and HMNS are both metastable configurations and can survive only shortly after the merger before collapsing to rotating Kerr black holes, whereas SMHS and SMNS end up in a stable final configuration. The appearance of the phase transition from hadronic to quark matter in the interior region of the HMHS/SMHS and its conjunction with the emitted gravitational wave will be addressed in this talk.

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