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Quark stars in D3-D7 holographic model

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Author(s):
Aleixo, M. ; Lenzi, C. H. ; de Paula, W. ; da Rocha, R.
Total Authors: 4
Document type: Journal article
Source: EUROPEAN PHYSICAL JOURNAL C; v. 84, n. 3, p. 8-pg., 2024-03-11.
Abstract

This work investigates static and dynamical quark star properties within a D-3-D-7 holographic model. We solve the Tolman-Oppenheimer-Volk off equations for the quark matter equation of state obtained from the branec on figuration. We determine the mass-radius diagram for a range of model parameters and compare with recent NICERobservational data for the pulsars PSR J0030+0451 and PSRJ0740+6620.Motivated by the GW170817 event detected by the LIGO-Virgo collaboration, we also calculate the tidalde for mability parameter obtained for each component of the binary star system. We show that quark stars composed off lavor-independent quark matter derived from the D-3-D-7 holographic model are not able to satisfy simultaneously theLIGO-Virgo and NICER astrophysical bounds. (AU)

FAPESP's process: 22/01734-7 - Gauge/gravity dualities, Navier-Stokes equations with soft-hair, and Dirac fluids
Grantee:Roldão da Rocha
Support Opportunities: Regular Research Grants
FAPESP's process: 21/01089-1 - Cherenkov Telescope Array: construction and first discoveries
Grantee:Luiz Vitor de Souza Filho
Support Opportunities: Special Projects
FAPESP's process: 20/05238-9 - Different approaches in the strongly interacting matter study
Grantee:Odilon Lourenço da Silva Filho
Support Opportunities: Regular Research Grants