Charged anisotropic compact stars in Ricci-inverse gravity

• Published in: European physical journal plus 2024-01, Vol.139 (1), Article 67
• Main Authors: Malik, Adnan, Arif, Amna, Shamir, M. Farasat
• Format: Article
• Language: English
• Subjects: Applied and Technical Physics; Atomic; Complex Systems; Condensed Matter Physics; Mathematical and Computational Physics; Molecular; Optical and Plasma Physics; Physics; Physics and Astronomy; Regular Article; Theoretical
• ISSN: 2190-5444; 2190-5444
• DOI: 10.1140/epjp/s13360-024-04870-4

The main objective of this work is to use the Karmarkar condition to investigate the charged anisotropic characteristics of compact stars in the recently proposed modified Ricci-inverse gravity. For this purpose, we derive the relativistic anisotropic static spherically symmetric solutions with specific Adler model for the g tt metric potential. To determine the exterior geometry, we use the Bardeen model and carry out various physical tests to determine whether the Ricci-inverse gravity model is physically feasible, and to further investigate for energy density, pressure components, mass–radius relations, energy and equilibrium conditions. The success of Ricci-inverse gravity model for charged anisotropic compact stars is also discussed in our study. It is concluded that the existence of charged anisotropic compact stars is possible with our proposed f ( R , A ) gravity model. However, our chosen f ( R , A ) gravity model is not supporting massive stars. The exact limitations are not debated in this work; however, the stars with mass M = 1.2 M ⨀ and radii ( R = 9 , 9.10, 9.20, 9.30) are acceptable for our chosen model.