111 citations
- St Xavier’s CollegeIN61 papers
- Jadavpur UniversityIN12 papers
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- Tata Institute of Fundamental ResearchIN10 papers
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- National Centre for Radio AstrophysicsIN6 papers
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- St. Xavier's College (Autonomous), KolkataIN5 papers
4 papers · 1 filter
A continuous transition from Type-C Quasi Periodic Oscillations to the Heartbeat state in the Black hole X-ray binary 4U 1630-47
Chintan Patel, Sayantan Bhattacharya, Karan Akbari +2
We present a timing analysis of the black hole X-ray binary (BHXRB) 4U 1630-47 using AstroSat observations from 10-19 March 2023, for the first time capturing a rare and rapid tran…
Overcharging Extremal Rotating Black Holes
Shauvik Biswas, Amruta Sadhu, Sudipta Sarkar
In this work, we use the weak cosmic censorship conjecture(WCC) to constrain black hole solutions in modified gravity theories. While Wald showed that extremal Kerr-Newman black ho…
The Energy Spectrum of the Pion from Lattice QCD
Debarshi Mukherjee, Dilan Arik, Navneeth C +6
In this report, computational techniques are employed to extract the energy eigenvalues of the pion from two-point correlation function data that has been simulated using the latti…
Formation of Singularity and Apparent Horizon for Dissipative Collapse in Theory of Gravity
Uttaran Ghosh, Sarbari Guha
In this paper, we consider the spherically symmetric gravitational collapse of isotropic matter undergoing dissipation in the form of heat flux, with a generalized Vaidya exterior,…