paper

On the Ambiguity in Relativistic Tidal Deformability

arXiv:1710.11096 · doi:10.1088/1361-6382/aab186

Abstract

The LIGO collaboration recently reported the first gravitational-wave constraints on the tidal deformability of neutron stars. I discuss an inherent ambiguity in the notion of relativistic tidal deformability that, while too small to affect the present measurement, may become important in the future. I propose a new way to understand the ambiguity and discuss future prospects for reliably linking observed gravitational waveforms to compact object microphysics.

discussion expanded; matches published version

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