2022/05/02 by Pawan Kumar Gupta, Anna Puecher, Gupta, Pawan Kumar +11
Computer Science · Engineering · Physics and Astronomy · #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Geophysics and Sensor Technology #High Energy Astrophysical Phenomena (astro-ph.HE) #Pulsars and Gravitational Waves Research #Seismology and Earthquake Studies #astro-ph.HE #gr-qc
paper · pdf · doi:10.48550/arxiv.2205.01182
9 pages, 4 figures
arxiv created 2022/05/02 · openalex publication_date 2022/05/02 · arxiv updated 2022/05/04 · openalex created_date 2022/05/08 · openalex updated_date 2026/07/28
Third-generation gravitational wave (GW) observatories such as Einstein Telescope (ET) and Cosmic Explorer (CE) will be ideal instruments to probe the structure of neutron stars through the GWs they emit when undergoing binary coalescence. In this work we make predictions about how well ET in particular will enable us to reconstruct the neutron star equation of state through observations of tens of binary neutron star coalescences with signal-to-noise ratios in the hundreds. We restrict ourselves to information that can be extracted from the inspiral, which includes tidal effects and possibly r-mode resonances. In treating the latter we go beyond the Newtonian approximation, introducing and utilizing new universal relations. We find that the ability to observe resonant r-modes would have a noticeable impact on neutron star equation of state measurements with ET.