Exploring physical properties of minimally deformed strange star model and constraints on maximum mass limit in f(𝒬) gravity

Abstract

Our current investigation is inherently linked to the observations of gravitational waves from the GW190814 event which suggests that the source of the signals can be ascribed to a compact binary coalescence of a 22.2 to 24.3M ⊙ black hole and a compact object endowed with a mass of 2.50 to 2.67M ⊙. In the current exposition, we are concerned with modeling of the lower mass component of the coalescence pair. We utilize the f(𝒬) gravity together with the Minimal Geometric Deformation (MGD) technique to obtain compact stellar objects with masses aligned with the GW190814 event. Starting off with the Tolman IV ansatz for one of the metric functions, together with an MIT Bag model equation of state we are able to reduce the problem of fully describing the gravitational behavior of the seed solution to a quadrature. Through the MGD technique, we introduce anisotropy by deforming the radial part of the gravitational potential. This enables us to obtain two new classes of solutions which depend on the metricity parameter, 𝒬 and the deformation constant, β. We show that these two parameters play a crucial role in determining the thermodynamical behavior and stability of our models. In particular, we show that the interplay between the metricity parameter and the deformation constant predicts the mass of the progenitor articulating as the secondary component of GW190814.

Relativistic wormhole surrounded by dark matter halos in symmetric teleparallel gravity

“…[ 76 ] Recently, the physical properties of strange star model using MGD and extended MGD approaches along with constraints on maximum mass limit under $$f(\mathcal {Q})$$ gravity have been investigated by Maurya et al. [ 78,79 ] Hassan et al. [ 80 ] explored the wormhole solutions first time in the background of symmetric teleparallel $$f(Q)$$ gravity.…”

Role of f(\mathcal{R},\mathbf{T}^{2}) Theory on Charged Compact Stars

“…They found that negative values of the model parameters support to more stellar masses while positive values reduce the amount of matter of the star. Maurya et al [54] used minimum geometric deformation technique to obtain compact stellar objects with masses aligned with the GW190814 event in f (Q) gravity. They showed that metricity parameter and deformation constant play a crucial role in determining the viability and stability of compact stellar models.…”

Minimally deformed anisotropic solution generated by vanishing complexity factor condition in f(Q)-gravity theory

“…The bouncing Universe model is also studied in f (Q) gravity [30]. Several other models along with wormhole geometries are also investigated in f (Q) gravity theory [31][32][33][34][35][36][37][38]. In this article, the f (Q) gravity will be used to obtain a solution of field equations for compact stars.…”