12 citations
4 papers
Particle production during inflation: constraints expected from redshifted 21 cm observations from the epoch of reionization
Suvedha Suresh Naik, Pravabati Chingangbam, Kazuyuki Furuuchi
We examine a type of features in the primordial scalar power spectrum, namely, the bump-like feature(s) that arise as a result of burst(s) of particle production during inflation.…
Black holes shielded by magnetic fields
Chandrachur Chakraborty
Black holes (BHs) formed by collapsing and/or merging of magnetized progenitors, have magnetic fields penetrating the event horizon, and there are several possible scenarios. Thus,…
Gravitational Larmor precession
Chandrachur Chakraborty, Parthasarathi Majumdar
Inspired by the reported existence of substantive magnetic fields in the vicinity of the central supermassive black holes in Sagitarius A* and Messier 87*, we consider test particl…
Particle production during inflation: A Bayesian analysis with CMB data from Planck 2018
Suvedha Suresh Naik, Kazuyuki Furuuchi, Pravabati Chingangbam
A class of inflationary models that involve rapid bursts of particle productions predict observational signatures, such as bump-like features in the primordial scalar power spectru…