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Quark stars in D₃-D₇ holographic model

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arxiv 2310.17719 v3 pith:3TXWSUY5 submitted 2023-10-26 hep-ph astro-ph.HEnucl-th

Quark stars in D₃-D₇ holographic model

classification hep-ph astro-ph.HEnucl-th
keywords quarkmodelholographicligo-virgomatternicerobtainedstar
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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This work investigates static and dynamical quark star properties within a $D_3-D_7$ holographic model. We solve the Tolman-Oppenheimer-Volkoff equations for the quark matter equation of state obtained from the brane configuration. We determine the mass-radius diagram for a range of model parameters and compare with recent NICER observational data for the pulsars PSR J$0030+0451$ and PSR J$0740+6620$. Motivated by the GW170817 event detected by the LIGO-Virgo collaboration, we also calculate the tidal deformability parameter obtained for each component of the binary star system. We show that quark stars composed of flavor-independent quark matter derived from the $D_3-D_7$ holographic model are not able to satisfy simultaneously the LIGO-Virgo and NICER astrophysical bounds.

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Cited by 1 Pith paper

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  1. Properties of Stable Massive Quark Stars in Holography

    hep-ph 2025-12 unverdicted novelty 5.0

    Holographic model of massive deconfined quarks yields a stiff enough equation of state to allow stable 2-solar-mass hybrid stars with quark cores for certain nuclear phases.