Masses of compact (neutron) stars with distinguished cores
Abstract
The impact of the core mass on the compact/neutron-star mass-radius relation is studied. Besides the mass, the core is parameterized by its radius and surface pressure, which supports the outside one-component Standard Model (SM) matter. The core may accommodate SM matter with unspecified (or poorly known) equation-of-state or several components, e.g. consisting of admixtures of Dark Matter and/or Mirror World matter etc. beyond the SM. Thus, the admissible range of masses and radii of compact stars can be considerably extended.
Keywords
Cite
@article{arxiv.2302.01389,
title = {Masses of compact (neutron) stars with distinguished cores},
author = {Rico Zollner and Minghui Ding and Burkhard Kampfer},
journal= {arXiv preprint arXiv:2302.01389},
year = {2023}
}
Comments
20 pages, 9 figures, 1 table. Contribution to a Special Issue of PARTICLES: "Strong Interactions in the Standard Model: Massless Bosons to Compact Stars". Version accepted for publication. arXiv admin note: text overlap with arXiv:2203.17228