English

Impact on orbital period of X-ray Binary system attached to a cosmic string

General Relativity and Quantum Cosmology 2025-12-10 v1 High Energy Astrophysical Phenomena

Abstract

Cosmic strings attached to rotating black holes extract its rotational energy, resulting in a mass loss and reduced spin. In this paper we discuss the proposed methods to detect these phenomena and present a novel methodology based on existing literature, by considering a Low Mass X-ray binary system. We investigate the impact of a cosmic string interacting with a black hole in an X-ray binary system and attempt to explain the observations of unexpected orbital period changes in such systems by proposing mass loss by cosmic strings to be a potential cause. For a period change of order 101010^{-10}, the string tension is 1017\sim 10^{-17}, lying in the predicted range for cosmic string tension. An analysis of multiple low mass X-ray binary systems is carried out and it is shown that a significant and observable change occurs for a string tension 1011\sim 10^{-11}.

Keywords

Cite

@article{arxiv.2512.07911,
  title  = {Impact on orbital period of X-ray Binary system attached to a cosmic string},
  author = {Ishan Swamy and Deobrat Singh},
  journal= {arXiv preprint arXiv:2512.07911},
  year   = {2025}
}