Generic Gravitational-Wave Signals from the Collapse of Rotating Stellar Cores

2007/02/28 by Harald Dimmelmeier, Christian D. Ott, Hans-Thomas Janka +4 · 3 citations
Earth and Planetary Sciences · Physics and Astronomy · #Gamma-ray bursts and supernovae #High-pressure geophysics and materials #Pulsars and Gravitational Waves Research #astro-ph #gr-qc

paper · pdf · doi:10.1103/physrevlett.98.251101

published as Phys.Rev.Lett.98:251101,2007 · 4 pages, 3 figures; minor modifications and additions

arxiv created 2007/06/12 · openalex publication_date 2007/06/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

We perform general relativistic (GR) simulations of stellar core collapse to a protoneutron star, using a microphysical equation of state (EOS) and an approximation of deleptonization. We show that for a wide range of rotation rates and profiles the gravitational-wave (GW) burst signals from the core bounce are generic, known as type I. In our systematic study, using both GR and Newtonian gravity, we identify and quantify the influence of rotation, the EOS, and deleptonization on this result. Such a generic type of signal templates will facilitate a more efficient search in current and future GW detectors of both interferometric and resonant type.

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