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Macroscopic properties of the XTE J1814-338 as a dark matter admixed strange star

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arxiv 2501.06379 v2 pith:TYZ3JEFY submitted 2025-01-10 astro-ph.HE hep-ph

classification astro-ph.HEhep-ph
keywords darkmatterj1814-338macroscopicmassobjectodotproperties
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abstract

In this letter, I discuss the macroscopic properties of the ultracompact object XTE J1814-338, whose inferred mass and radius read $M$ = 1.21 $\pm$ 0.05 $M_\odot$ and R = 7.0 $\pm$ 0.4 km. By using the neutralino as WIMP dark matter with a fixed Fermi momentum, I calculated the maximum possible mass of this object, the moment of inertia, the gravitational redshift, the dimensionless tidal parameter, and the total amount of dark matter for a 1.2$M_\odot$ star.

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Forward citations

Cited by 3 Pith papers

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

  1. A self-consistent Higgs-portal framework for dark matter--admixed neutron stars: Collider-motivated benchmarks meet multimessenger constraints

    astro-ph.HE 2026-07 conditional novelty 5.0 of 10

    Adding heavy dark matter to neutron stars via nχ=FχnB softens the equation of state and lowers the maximum mass, but the vector interaction invoked is numerically negligible.

  2. Role of density profile of sub-GeV dark matter in the properties of dark matter admixed quark stars with Bayesian analysis of dark-NJL model

    hep-ph 2025-09 reject novelty 5.0 of 10

    A model of quark stars with a variable dark matter density profile claims sub-GeV dark matter can satisfy all current compact star constraints.

  3. Core-Corona Decomposition of Very Compact (Neutron) Stars: Accounting for Current Data of XTE J1814-338

    astro-ph.HE 2025-06 conditional novelty 4.0 of 10

    For the compact pulsar XTE J1814-338, the required core inferred from standard outer-matter physics is large and dense, and simple standard-matter core models fail to reproduce it.

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