Prospects for reconstructing the gravitational-wave signals from core-collapse supernovae with Advanced LIGO-Virgo and the BayesWave algorithm

Abstract

Our current understanding of the core-collapse supernova explosion mechanism is incomplete, with multiple viable models for how the initial shock wave might be energized enough to lead to a successful explosion. Detection of a gravitational-wave signal emitted in the initial few seconds after stellar core-collapse would provide unique and crucial insight into this process. With the Advanced LIGO and Advanced Virgo detectors expected to approach their design sensitivities soon, we could potentially detect this signal from a supernova within our galaxy. In anticipation of such a scenario, we study how well the BayesWave algorithm can recover the gravitational-wave signal from core-collapse supernova models in simulated advanced detector noise, and optimize its ability to accurately reconstruct the signal waveforms. We find that BayesWave can confidently reconstruct the signal from a range of supernova explosion models in Advanced LIGO-Virgo for network signal-to-noise ratios $\gtrsim 30$, reaching maximum reconstruction accuracies of $\sim 90\%$ at SNR $\sim 100$. For low SNR signals that are not confidently recovered, our optimization efforts result in gains in reconstruction accuracy of up to $20-40\%$, with typical gains of $\sim 10\%$.

18 pages, 8 figures, submitted to Phys. Rev. D

References in corpus (17)

• Advanced Virgo: a 2nd generation interferometric gravitational wave detector
• Core-Collapse Supernova Explosion Theory
• BayesWave: Bayesian Inference for Gravitational Wave Bursts and Instrument Glitches
• BayesLine: Bayesian Inference for Spectral Estimation of Gravitational Wave Detector Noise
• The BayesWave analysis pipeline in the era of gravitational wave observations
• On the rate of core collapse supernovae in the Milky Way
• Inferring the post-merger gravitational wave emission from binary neutron star coalescences
• SNEWS 2.0: A Next-Generation SuperNova Early Warning System for Multi-messenger Astronomy
• All-sky search for short gravitational-wave bursts in the third Advanced LIGO and Advanced Virgo run
• A New Method to Observe Gravitational Waves emitted by Core Collapse Supernovae
• Supernova Seismology: Gravitational Wave Signatures of Rapidly Rotating Core Collapse
• Modeling compact binary signals and instrumental glitches in gravitational wave data
• Inference of proto-neutron star properties from gravitational-wave data in core-collapse supernovae
• Universal relation for supernova gravitational waves
• Inferring Astrophysical Parameters of Core-Collapse Supernovae from their Gravitational-Wave Emission
• Astrophysics with core-collapse supernova gravitational wave signals in the next generation of gravitational wave detectors
• Enhancing gravitational-wave burst detection confidence in expanded detector networks with the BayesWave pipeline