Dynamical evolution of fermion-boson stars with realistic equations of state
General Relativity and Quantum Cosmology
2022-06-29 v1 High Energy Astrophysical Phenomena
High Energy Physics - Phenomenology
Nuclear Theory
Abstract
Fermion-boson stars are mixtures of the ordinary nuclear matter of a neutron star and bosonic dark matter. We dynamically evolve fermion-boson stars for the first time using a realistic equation of state for nuclear matter. We use our dynamical solutions to make a detailed study of the evolution of weakly and strongly perturbed static solutions. As examples of our findings, we identify a region of parameter space where weakly perturbed unstable static solutions migrate to a stable configuration and we determine the criteria under which strongly perturbed stable static solutions will always move to a stable configuration instead of collapsing to a black hole.
Keywords
Cite
@article{arxiv.2206.07715,
title = {Dynamical evolution of fermion-boson stars with realistic equations of state},
author = {Joseph E. Nyhan and Ben Kain},
journal= {arXiv preprint arXiv:2206.07715},
year = {2022}
}
Comments
12 pages, 6 figures. arXiv admin note: text overlap with arXiv:2201.02274