PreprintCC BY 4.0arXiv
Circular orbits and particle collisions in the space-time of boson stars and their frozen states
Abstract
In this paper, we discuss the dynamics of test particles in the space-time of spherically symmetric, charged boson stars and their frozen states. These latter objects consist of a de Sitter core and a black hole exterior with a shell of finite thickness interpolating between the two. We discuss charged and uncharged massive particles, find the ISCOs and determine whether collisions of massive particles close to the core of (frozen) boson stars can lead to large center of mass energies. We also discuss massless test particles and find that photons rings as well as light points are possible in the space-time of frozen boson stars. We compare our results with those in the corresponding Reissner-Nordstroem space-time and point out differences.
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BibTeX
@misc{chivers2026circular,
title = {{Circular orbits and particle collisions in the space-time of boson stars and their frozen states}},
author = {Maria Chivers and Betti Hartmann and Katherine Horton and Yves Brihaye},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.31348},
eprint = {2609.31348},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.31348},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Circular orbits and particle collisions in the space-time of boson stars and their frozen states
AU - Maria Chivers
AU - Betti Hartmann
AU - Katherine Horton
AU - Yves Brihaye
PY - 2026
DA - 2026/09/25
PB - arXiv
DO - 10.48550/arxiv.2609.31348
UR - https://arxiv.org/abs/2609.31348
AB - In this paper, we discuss the dynamics of test particles in the space-time of spherically symmetric, charged boson stars and their frozen states. These latter objects consist of a de Sitter core and a black hole exterior with a shell of finite thickness interpolating between the two. We discuss charged and uncharged massive particles, find the ISCOs and determine whether collisions of massive particles close to the core of (frozen) boson stars can lead to large center of mass energies. We also discuss massless test particles and find that photons rings as well as light points are possible in the space-time of frozen boson stars. We compare our results with those in the corresponding Reissner-Nordstroem space-time and point out differences.
ER -