Gravitational Waves from Core-Collapse Supernova

Repository of Theoretical 3D Gravitational Wave Signatures from Supernovae:

Abstract from the paper Characterizing the Gravitational Wave Signal from Core-Collapse Supernovae by David Radice, Viktoriya Morozova, Adam Burrows, David Vartanyan, & Hiroki Nagakura; Astrophys. J. Lett. 876, L9, 2019):

We study the gravitational wave signal from eight new 3D core-collapse supernova simulations. We show that the signal is dominated by f- and g-mode oscillations of the protoneutron star and its frequency evolution encodes the contraction rate of the latter, which, in turn, is known to depend on the star's mass, on the equation of state, and on transport properties in warm nuclear matter. A lower-frequency component of the signal, associated with the standing accretion shock instability, is found in only one of our models. Finally, we show that the energy radiated in gravitational waves is proportional to the amount of turbulent energy accreted by the protoneutron star.

Below are the gravitational wave (GW) strain data from that paper. For each model, we give the GW strain signal due to the matter terms alone, neutrino memory is not included in these files at the moment, though it was calculated for all models. The data are in ASCII format and the three columns are

1:time time since bounce in sec

2:hplus plus polarization of the GW strain times distance in cm

3:hcross cross polarization of the GW strain times distance in cm

The data are sampled at ~16 kHz, but, due to timestep fluctuations in the simulation, the sampling is not perfectly uniform in time. Therefore resampling might be necessary.


3D GW h+, hx: 9 solar masses; Sukhbold et al. 2016

3D GW h+, hx: 10 solar masses; Sukhbold et al. 2016

3D GW h+, hx: 11 solar masses; Sukhbold et al. 2016

3D GW h+, hx: 12 solar masses; Sukhbold et al. 2016

3D GW h+, hx: 13 solar masses; Sukhbold et al. 2016

3D GW h+, hx: 14 solar masses; Sukhbold et al. 2016

3D GW h+, hx: 15 solar masses; Sukhbold et al. 2016

3D GW h+, hx: 19 solar masses; Sukhbold et al. 2016

3D GW h+, hx: 25 solar masses; Sukhbold et al. 2018

3D GW h+, hx: 60 solar masses; Sukhbold et al. 2016

All the strain files