UHM Physics Department Colloquia
# What’s the (Quantum) Matter with Black Holes? Echoes from the Abyss in the LIGO Era

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by

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Pacific/Honolulu

420 (Watanabe Hall)
### 420

#### Watanabe Hall

2505 Correa Road

Description

The formation of a gravitational vacuum condensate star with a p=−ρ interior solves these problems and remarkably, actually follows from Schwarzschild's second paper over a century ago. The advent of Gravitational Wave (GW) Astronomy will soon allow for observational tests of this hypothesis, in the discrete surface modes of oscillation and GW “echoes,” which should be detectable by advanced LIGO and related instruments. The imaging of Sgr A* by the Event Horizon Telescope will furnish additional tests of the gravastar hypothesis. The same Standard Model effects responsible for the formation of a gravastar surface lead also to the prediction of addition Scalar GWs from Neutron Star mergers.

Thus the new era of GW and multi-messenger astronomy holds the promise of a breakthrough in understanding of the physics of compact objects, and how quantum effects may be compatible with Einstein's General Relativity.