Gravitational Waves from Gravitational Collapse

TL;DR

This paper reviews the progress in simulating gravitational wave emissions from collapsing massive stars, emphasizing advances in numerical methods, physics modeling, and the potential for detection with current and future observatories.

Contribution

It highlights recent developments in three-dimensional simulations incorporating realistic physics and angular momentum profiles for gravitational collapse.

Findings

Simulations predict detectable gravitational waves from stellar collapse.

Advanced observatories could observe signals from various collapse phenomena.

Inclusion of microphysics and non-axisymmetric effects improves model accuracy.

Abstract

Gravitational wave emission from the gravitational collapse of massive stars has been studied for more than three decades. Current state of the art numerical investigations of collapse include those that use progenitors with realistic angular momentum profiles, properly treat microphysics issues, account for general relativity, and examine non--axisymmetric effects in three dimensions. Such simulations predict that gravitational waves from various phenomena associated with gravitational collapse could be detectable with advanced ground--based and future space--based interferometric observatories.