42 citations · 236 across the 34 of their papers we have counts for
5 papers · 1 filter
Cosmology and Astrophysics Using the Post-reionization HI
Tapomoy Guha Sarkar, Anjan A Sen
We discuss the prospects of using the redshifted 21~cm emission from neutral hydrogen in the post-reionization epoch to study our universe. The main aim of the article is to highli…
The redshifted HI 21 cm signal from the post-reionization epoch: Cross-correlations with other cosmological probes
T. Guha Sarkar, K. K. Datta, A. K. Pal +2
Tomographic intensity mapping of the HI using the redshifted 21 cm observations opens up a new window towards our understanding of cosmological background evolution and structure f…
Phase transition in a Aubry-Andre system with rapidly oscillating magnetic field
Tridev Mishra, Rajath Shashidhara, Tapomoy Guha Sarkar +1
We investigate a variant of the Aubry-André-Harper (AAH) model corresponding to a bosonic optical lattice of ultra cold atoms under an effective oscillatory magnetic field. In the…
Prospects of probing quintessence with HI 21-cm intensity mapping survey
Azam Hussain, Shruti Thakur, Tapomoy Guha Sarkar +1
We investigate the prospect of constraining scalar field dark energy models using HI 21-cm intensity mapping surveys. We consider a wide class of coupled scalar field dark energy m…
Constraining Neutrino mass using the large scale HI distribution in the Post-reionization epoch
Ashis Kumar Pal, Tapomoy Guha Sarkar
The neutral intergalactic medium in the post reionization epoch allows us to study cosmological structure formation through the observation of the redshifted 21 cm signal and the L…