Equation of state constraints from the threshold binary mass for prompt collapse of neutron star mergers
| Autor: | Niels-Uwe F. Bastian, Nikolaos Stergioulas, David Blaschke, James A. Clark, Katerina Chatziioannou, Mateusz Cierniak, Tobias Fischer, Andreas Bauswein, Vimal Vijayan, Sebastian Blacker |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
High Energy Astrophysical Phenomena (astro-ph.HE)
Physics Phase transition Equation of state Nuclear Theory Gravitational wave FOS: Physical sciences General Physics and Astronomy Binary number Observable Astrophysics Kilonova 01 natural sciences Nuclear Theory (nucl-th) Strange matter Neutron star High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences ddc:530 010306 general physics Astrophysics - High Energy Astrophysical Phenomena |
| Zdroj: | Physical Review Letters Physical review letters 125(14), 141103 (2020). doi:10.1103/PhysRevLett.125.141103 |
| Popis: | Using hydrodynamical simulations for a large set of high-density matter equations of state (EoSs) we systematically determine the threshold mass M_thres for prompt black-hole formation in equal-mass and asymmetric neutron star (NS) mergers. We devise the so far most direct, general and accurate method to determine the unknown maximum mass of nonrotating NSs from merger observations revealing M_thres. Considering hybrid EoSs with hadron-quark phase transition, we identify a new, observable signature of quark matter in NS mergers. Furthermore, our findings have direct applications in gravitational wave searches, kilonova interpretations and multi-messenger constraints on NS properties. Accepted for publication in Phys. Rev. Lett.; 14 pages, 5 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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