Speaker: Ulrich Sperhake (The University of Cambridge)
Abstract:
We model stellar core collapse in massive scalar-tensor theories of
gravity. The presence of a mass term for the scalar field allows for
dramatic increases in the radiated gravitational wave signal and
may stretch out the signal to last for years or even centuries. There are
several potential smoking gun signatures of a departure from general
relativity associated with this process. These signatures could show up
within existing LIGO-Virgo searches.