29 citations · 30 across the 5 of their papers we have counts for
6 papers
Forward Bayesian Inference for the Binary Black Hole Populations
Poulami Dutta Roy, Tanmaya Mishra, Achal Kumar +1
We present PopCWB, a Bayesian framework for the inference of the binary black hole (BBH) population based on the unmodeled search pipeline coherent WaveBurst (cWB). The standard po…
Super-Chandrasekhar white dwarfs by the evolution of magnetized main-sequence stars: New mass-limits from STARS simulation
Zenia Zuraiq, Banibrata Mukhopadhyay, Achal Kumar +4
We explore the time evolution of the magnetized main-sequence stars (MSs) to magnetized non-rotating white dwarfs (WDs) with a series of models, capturing modified Hertzsprung-Russ…
Precision Ringdown Measurements of Binary Black Hole Remnants
Achal Kumar, Poulami Dutta Roy, Marek J. Szczepańczyk +1
The ringdown gravitational wave from a binary black hole (BBH) merger is a superposition of quasi-normal modes (QNMs) of the remnant black hole. In general relativity (GR), QNMs ar…
Simulating super-Chandrasekhar white dwarfs
Zenia Zuraiq, Achal Kumar, Alexander J. Hackett +3
Over the last few decades, there has been considerable interest in the violation of the sacred "Chandrasekhar" mass limit of white dwarfs (WDs). Peculiar over-luminous type Ia supe…
Covariant formalism for the Berry connection due to gravity
Achal Kumar, Banibrata Mukhopadhyay
It is well-known that Dirac particles gain geometric phase, namely Berry phase, while moving in an electromagnetic field. Researchers have already shown covariant formalism for the…
Semiclassical analysis of Dirac fields on curved spacetime
Marius A. Oancea, Achal Kumar
We present a semiclassical analysis for Dirac fields on an arbitrary spacetime background and in the presence of a fixed electromagnetic field. Our approach is based on a Wentzel-K…