We present a generalization of the curative initial data construction derived for equal-mass compact binaries in Helfer {\it et al} (2019 Phys. Rev. D 99 044046; 2022 Class. Quantum Grav. 39 074001) 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.
Cite
@article{arxiv.2212.08023,
title = {Unequal-mass boson-star binaries: Initial data and merger dynamics},
author = {Tamara Evstafyeva and Ulrich Sperhake and Thomas Helfer and Robin Croft and Miren Radia and Bo-Xuan Ge and Eugene A. Lim},
journal= {arXiv preprint arXiv:2212.08023},
year = {2023}
}
Comments
37 pages, 12 figures, to match published version in CQG