Gravitational-wave signature of core-collapse supernovae

• DOI: 10.1103/physrevd.107.103015
• Publication Date: 2023-05-10T12:15:58Z
• Authors: David Vartanyan; Adam Burrows; Tianshu Wang; Matthew S. B. Col...; Christopher J. White

We calculate the gravitational-wave (GW) signatures of detailed three-dimensional (3D) core-collapse supernova simulations spanning a range massive stars. Most are carried out to times late enough capture more than 95% total GW emission. find that $f/g$-mode and $f$-mode protoneutron star oscillations carry away most power. The frequency inexorably rises as (PNS) core shrinks. demonstrate emission is excited mostly by accretion plumes onto PNS energize modal also high-frequency (``haze'') correlated with phase violent accretion. duration major varies exploding progenitor, there strong correlation between energy radiated compactness progenitor. Moreover, emissions vary much 3 orders magnitude from star. For black hole formation, signal tapers off slowly does not manifest haze seen for models. such failed models, we witness emergence spiral shock motion modulates at near $\ensuremath{\sim}100\text{ }\text{ }\mathrm{Hz}$ increases stalled sinks. significant angular anisotropy both high- low-frequency (memory) emissions, though latter have very little