2019/07/31 by Luca Baiotti · 6 citations
Physics and Astronomy · #Astrophysics #Atomic and Subatomic Physics Research #Binary number #Classical mechanics #Computational physics #Equation of state #Gamma-ray bursts and supernovae #Gravitation #Gravitational wave #Neutron #Neutron star #Nuclear physics #Physics #Pulsars and Gravitational Waves Research #Quantum mechanics #astro-ph.HE #gr-qc #nucl-th
paper · pdf · doi:10.1016/j.ppnp.2019.103714
published as Progress in Particle and Nuclear Physics 109, 103714 (2019) · 48 pages of text; invited review article; matches the final published version available (with better layout) at https://authors.elsevier.com/a/1ZoHUXLw5tMgD
openalex created_date 2019/07/30 · openalex publication_date 2019/08/02 · arxiv created 2019/09/26 · arxiv updated 2019/09/30 · openalex updated_date 2026/08/05
In this article, I introduce ideas and techniques to extract information about the equation of state of matter at very high densities from gravitational waves emitted before, during and after the merger of binary neutron stars. I also review current work and results on the actual use of the first gravitational-wave observation of a neutron-star merger to set constraints on properties of such equation of state. In passing, I also touch on the possibility that what we observe in gravitational waves are not neutron stars, but something more exotic. In order to make this article more accessible, I also review the dynamics and gravitational-wave emission of neutron-star mergers in general, with focus on numerical simulations and on which representations of the equation of state are used for studies on binary systems.