Journal of High Energy Astrophysics, Volume 42, Pages 12-20 , 01/06/2024

Investigating stable quark stars in Rastall-Rainbow gravity and their compatibility with gravitational wave observations

Takol Tangphati, Dhruba Jyoti Gogoi, Anirudh Pradhan, Ayan Banerjee

Abstract

We present a stable model for quark stars in Rastall-Rainbow (R-R) gravity. The structure of this configuration is obtained by utilizing an interacting quark matter equation of state. The R-R gravity theory is developed as a combination of two distinct theories, namely, the Rastall theory and the gravity's rainbow formalism. Depending on the model parameters (λ¯,η,Σ,B<inf>eff</inf>), the mass-radius relations are numerically computed for modified Tolman-Oppenheimer-Volkoff (TOV) equations with proper boundary conditions. The stability of equilibrium configuration has been checked through the static stability criterion, adiabatic index and the sound velocity. Our calculations predict larger maximum masses for quark stars, and the obtained results are compatible with accepted masses and radii values, including constraints from GW190814 and GW170817 events in all the studied cases.

Document Type

Article

Source Type

Journal

ASJC Subject Area

Physics and Astronomy : Astronomy and Astrophysics

Funding Agency

Walailak University


Bibliography


Tangphati, T., Gogoi, D., Pradhan, A., & Banerjee, A. (2024). Investigating stable quark stars in Rastall-Rainbow gravity and their compatibility with gravitational wave observations. Journal of High Energy Astrophysics, 4212-20. doi:10.1016/j.jheap.2024.02.006

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