"There are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns - the ones we don't know we don't know."
-Donald Rumsfeld-
TEACHING INTEREST :
Mathematical Methods, Relativity, Electromagnestism, Quantum Mechanics
RESEARCH INTEREST :
Gravitation and Cosmology (Theoretical Physics)
RESEARCH PAPERS :
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Photon ring dimming as a signature of photon-axion conversion in Janis-Newann-Winicour naked Singularity
DOI: 10.1103/PhysRevD. 111, 044063, arxiv : 2409.09802 [https://arxiv.org/abs/2409.09802]
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Imprints of the Janis-Newman-Winicour spacetime on observations related to shadow and accretion
Phys.Rev.D 102 (2020) 6, 064027 [DOI: 10.1103/PhysRevD.102.064027,https://arxiv.org/abs/2004.02840]
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Implications of axionic hair on the shadow of M87*. Phys.Rev.D 101 (2020) 10,104057 [DOI: 10.1103/PhysRevD. 101. 104057, https://arxiv.org/abs/1911.05385]
- Signature of regular black holes from the shadow of Sgr A* and M87*. JCAP 09 (2022) 066 [https://arxiv.org/abs/2206.12125]
- Do shadows of Sgr A* and M87* indicate black holes with a magnetic monopole charge. [https://arxiv.org/abs/2207.06034]
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Shadow of a regular black hole in scalar-tensor-vector gravity theory. [https://arxiv.org/abs/2211.15040]
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Exploring axions through the photon ring of a spherically symmetric black hole
CONTACT :
Email ID - subhadipsau2@gmail.com
Personal Website: subhadipphysics.weebly.com
