Unequal-mass boson-star binaries: Initial data and merger dynamics [CL]

http://arxiv.org/abs/2212.08023


We present a generalization of the curative initial data construction derived for equal-mass compact binaries in Refs.[1,2] to arbitrary mass ratios. We demonstrate how these improved initial data avoid substantial spurious artifacts in the collision dynamics of unequal-mass boson-star binaries in the same way as has previously been achieved with the simpler method restricted to the equal-mass case. We employ the improved initial data to explore in detail the impact of phase offsets in the coalescence of equal- and unequal-mass boson star binaries.

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T. Evstafyeva, U. Sperhake, T. Helfer, et. al.
Fri, 16 Dec 22
7/72

Comments: 35 pages, 12 figures, submitted to CQG