111 citations
- St Xavier’s CollegeIN61 papers
- Jadavpur UniversityIN12 papers
- Saha Institute of Nuclear PhysicsIN10 papers
- Tata Institute of Fundamental ResearchIN10 papers
- Homi Bhabha National InstituteIN6 papers
- National Centre for Radio AstrophysicsIN6 papers
- Indian Institute of Science BangaloreIN5 papers
- Indian Institute of Science Education and Research KolkataIN5 papers
- Indian Institute of Technology HyderabadIN5 papers
- Institute of Mathematical SciencesIN5 papers
- Kumamoto UniversityJP5 papers
- St. Xavier's College (Autonomous), KolkataIN5 papers
62 papers
Probing heartbeat oscillations from the black hole X-ray binary GRS 1915+105 using spectral-timing analysis
Karan Akbari, Chintan Patel, Sayantan Bhattacharya +2
GRS 1915+105 is a black hole X-ray binary whose -class ("heartbeat") oscillations (50--100 s) are attributed to radiation-pressure instabilities in the inner accretion dis…
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,…
Size biased Multinomial Modelling of detection data in Software testing
Pallabi Ghosh, Ashis Kr. Chakraborty, Soumen Dey
Estimation of software reliability often poses a considerable challenge, particularly for critical softwares. Several methods of estimation of reliability of software are already a…