We develop a static charged stellar model in f(R,T) gravity where the modification is assumed to be linear in T which is the trace of the energy momentum tensor. The exterior spacetime of the charged object is described by the Reissner-Nordstr\"om metric. The interior solution is obtained by invoking the Buchdahl-Vaidya-Tikekar ansatz, for the metric potential grr, which has a clear geometric interpretation. A detailed physical analysis of the model clearly shows distinct physical features of the resulting stellar configuration under such a modification. We find the maximum compactness bound for such a class of compact stars which is a generalization of the Buchdahl bound for a charged sphere described in f(R,T) gravity. Our result shows physical behaviour that is distinct from general relativity.
@article{arxiv.2311.02915,
title = {Electromagnetic extension of Buchdahl bound in $f(R,T)$ gravity},
author = {Soumik Bhattacharya and Ranjan Sharma and Sunil D. Maharaj},
journal= {arXiv preprint arXiv:2311.02915},
year = {2023}
}