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- Ahmedabad UniversityIN10 papers
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25 papers
Impact of Anisotropy on Neutron Star Structure and Curvature
A. C. Khunt, K. Yavuz Ekşi, P. C. Vinodkumar
We investigate the impact of pressure anisotropy on the structural and geometric properties of neutron stars within general relativity, focusing primarily on the phenomenological B…
Optical appearance of regularized compact objects without an exterior photon sphere
Ashok B. Joshi, Vishva Patel, Parth C. Varasani
Recent observations by the Event Horizon Telescope (EHT) indicate that the shadow of the compact object at our Galaxy's center (Sgr A*) closely resembles that of a Schwarzschild bl…
Thermodynamic Phase Transitions and Quantum Entropy Corrections in the Simpson-Visser Regular Black Hole
Vinayak Joshi, Ashok B. Joshi
Regular black holes offer a compelling framework to explore the consequences of resolving the central singularity of standard black holes. Using the Simpson-Visser ``black-bounce"…
Tidal disruption of a neutron star near naked singularity
Ashok B. Joshi, Pankaj S. Joshi, Sudip Bhattacharyya
We investigate the tidal disruption of a neutron star (NS) near a black hole (BH), and for the first time, to the best of our knowledge, near a naked singularity (NaS). For a BH wi…
Magnetic Penrose Process and Kerr Black Hole Mimickers
Divyesh P. Viththani, Tapobroto Bhanja, Vishva Patel +1
The present study investigates the negative energy orbits and energy extraction efficiency using the magnetic Penrose process in various regular black hole geometries surrounded by…
Particle motion and tidal force in a non-vacuum-charged naked singularity
Divyesh P. Viththani, Ashok B. Joshi, Tapobroto Bhanja +1
In this article, we investigate the gravitational field of a charged, non-vacuum, non-rotating, spherically symmetric body of mass assuming a static solution to the Einstein-Ma…