Quark stars in D3-D7 holographic model
Abstract
This work investigates static and dynamical quark star properties within a D3-D7 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 J0030 +0451 and PSR J0740 +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 D3-D7 holographic model are not able to satisfy simultaneously the LIGO-Virgo and NICER astrophysical bounds.
- Publication:
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European Physical Journal C
- Pub Date:
- March 2024
- DOI:
- 10.1140/epjc/s10052-024-12619-7
- arXiv:
- arXiv:2310.17719
- Bibcode:
- 2024EPJC...84..253A
- Keywords:
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- High Energy Physics - Phenomenology;
- Astrophysics - High Energy Astrophysical Phenomena;
- Nuclear Theory
- E-Print:
- Eur. Phys. J. C (2024) 84:253