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Strange stars admixed with mirror dark matter: confronting observations of XTE J1814-338

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arxiv 2409.15969 v4 pith:UJL5EYMI submitted 2024-09-24 astro-ph.HE hep-ph

Shu-Hua Yang , Chun-Mei Pi , Fridolin Weber This is my paper · ORCID
classification astro-ph.HEhep-ph
keywords matterstarscompactdarkmirrormodelobservationsstrange
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In this paper, we explore a novel framework for explaining the mass and radius relationships of observed neutron stars by considering strange stars (SSs) admixed with mirror dark matter (MDM). We develop a theoretical model that incorporates non-commutative algebra to describe the interactions between ordinary strange quark matter (SQM) and MDM, which are predicted to form compact objects that could explain recent astrophysical data, including observations of PSR J0740+6620, PSR J0030+0451, PSR J0437-4715, and the central compact object in HESS J1731-347. Notably, we demonstrate that the exotic mass-radius measurement of XTE J1814-338 can be explained by the presence of a mirror SS with an ordinary SQM core. In contrast to other explanations based on boson stars, our SS+MDM model offers a natural explanation for this system. We provide detailed mass-radius comparisons with observational data and discuss future observations that could test the predictions of our model, offering new insights into neutron star structure and the role of dark matter in compact objects.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Simultaneous explanation of XTE J1814-338 and HESS J1731-347 objects using ${K^{-}}$ and ${\bar{K}^{0}}$ condensates

    nucl-th 2024-12 conditional novelty 5.0 of 10

    Using a relativistic mean-field model with K− and anti-K0 condensates, the authors reproduce the masses and radii of both XTE J1814-338 and HESS J1731-347 with a single kaon potential value.

  2. XTE J1814-338 as a dark matter admixed neutron star

    astro-ph.HE 2024-11 conditional novelty 5.0 of 10

    The ultracompact pulsar XTE J1814-338 is reproduced as a neutron star containing 200 GeV fermionic dark matter with a Fermi momentum of 0.08 GeV.

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