Radial Stability of Charged Interacting Quark Stars Revisited
Abstract
An error in the charged quark star literature \cite{Goncalves:2020joq} has resulted in erroneous solutions to the radial stability equations for charged interacting quark stars in \cite{zhang:2021}. In this article we recalculate the fundamental radial eigenfrequencies for charged, interacting quark stars in general relativity and discuss any departure from previous results \cite{zhang:2021}. Most of the qualitative trends persist, but the magnitudes of the separation between the maximum mass and stability points on a given branch can change significantly. We also note that all branches in \cite{zhang:2021} that contained no stable solutions now have stable solutions in their corrected counterparts. The net effect is that in all of the studied cases charged quark stars have a greater range of stability than originally predicted. We also compare four recent observational constraints not included in previous studies, and find that these constraints are satisfied by a subset of the mass-radius relations we obtain.
Related
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- M1 Radiative Transitions in the Bc System after the Bc∗(1S) Observation: Radial-Node Cancellation and Quark-Line Filtering
- Transport coefficients of strongly interacting quark-gluon plasma including elastic and inelastic scattering within the dynamical quasiparticle model
BibTeX
@misc{bissessur2026radial,
title = {{Radial Stability of Charged Interacting Quark Stars Revisited}},
author = {Yann Bissessur and Michael Gammon and Robert B. Mann},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2608.22653},
eprint = {2608.22653},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.22653},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Radial Stability of Charged Interacting Quark Stars Revisited
AU - Yann Bissessur
AU - Michael Gammon
AU - Robert B. Mann
PY - 2026
DA - 2026/10/22
PB - arXiv
DO - 10.48550/arxiv.2608.22653
UR - https://arxiv.org/abs/2608.22653
AB - An error in the charged quark star literature \cite{Goncalves:2020joq} has resulted in erroneous solutions to the radial stability equations for charged interacting quark stars in \cite{zhang:2021}. In this article we recalculate the fundamental radial eigenfrequencies for charged, interacting quark stars in general relativity and discuss any departure from previous results \cite{zhang:2021}. Most of the qualitative trends persist, but the magnitudes of the separation between the maximum mass and stability points on a given branch can change significantly. We also note that all branches in \cite{zhang:2021} that contained no stable solutions now have stable solutions in their corrected counterparts. The net effect is that in all of the studied cases charged quark stars have a greater range of stability than originally predicted. We also compare four recent observational constraints not included in previous studies, and find that these constraints are satisfied by a subset of the mass-radius relations we obtain.
ER -