Search for gravitational waves from supernovae and long GRBs

TL;DR

This paper presents evidence of black hole spindown in long gamma-ray bursts through gravitational wave signals, suggesting strong black hole-matter interactions and potential detection opportunities with current gravitational wave observatories.

Contribution

It introduces a novel matched filtering analysis of GRB light curves to identify gravitational wave signatures of black hole spindown, linking gamma-ray observations with gravitational wave emission.

Findings

Evidence for black hole spindown in long GRBs.

Potential gravitational wave detection from nearby supernovae.

Implications for current and future gravitational wave observatories.

Abstract

We report on evidence for black hole spindown in the light curves of the BATSE catalogue of 1491 long GRBs by application of matched filtering. This observation points to a strong interaction of the black hole with surrounding high density matter at the ISCO, inducing non-axisymmetric instabilities sustained by cooling in gravitational wave emission. Opportunities for LIGO-Virgo and the recently funded KAGRA experiments are highlighted, for long GRBs with and without supernovae and for hyper-energetic core-collapse supernovae within a distance of about 35 Mpc in the Local Universe.