This Letter considers 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. 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.
Sperhake, U., Moore, C., Rosca, R., Agathos, M., Gerosa, D., Ott, C. (2017). Long-Lived Inverse Chirp Signals from Core-Collapse in Massive Scalar-Tensor Gravity. PHYSICAL REVIEW LETTERS, 119(20) [10.1103/PhysRevLett.119.201103].
Long-Lived Inverse Chirp Signals from Core-Collapse in Massive Scalar-Tensor Gravity
Gerosa D;
2017
Abstract
This Letter considers 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. 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.
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