11 citations · 16 across the 3 of their papers we have counts for
5 papers
Constraining dark energy using the cross correlations of weak lensing with post-reionization probes of neutral hydrogen
Chandrachud B. V. Dash, Tapomoy Guha Sarkar
We investigate the prospects of detecting the cross correlation of CMBR weak-lensing convergence field with the large scale tracers of the underlying dark matter distribution in th…
Constraining warm dark matter power spectrum using the cross-correlation of HI 21 cm signal and the Lyman- forest
Anjan Kumar Sarkar, Ashis Kumar Pal, Tapomoy Guha Sarkar
We have considered the prospects for measuring the cross Warm Dark Matter (WDM) power spectrum of the redshifted HI 21-cm signal and the Lyman- forest and thereby constraining W…
Self-similar spectrum in effective time independent Hamiltonians for kicked systems
Rashmi Jangid Sharma, Jayendra N. Bandyopadhyay, Tapomoy Guha Sarkar
We study multifractal properties in the spectrum of effective time-independent Hamiltonians obtained using a perturbative method for a class of delta-kicked systems. The evolution…
Gravitational Wave Detection Using Redshifted 21-cm Observations
Somnath Bharadwaj, Tapomoy Guha Sarkar
A gravitational wave traversing the line of sight to a distant source produces a frequency shift which contributes to redshift space distortion. As a consequence, gravitational wav…
The CMBR ISW and HI 21-cm Cross-correlation Angular Power Spectrum
Tapomoy Guha Sarkar, Kanan K. Datta, Somnath Bharadwaj
The late-time growth of large scale structures (LSS) is imprinted in the CMBR anisotropy through the Integrated Sachs Wolfe (ISW) effect. This is perceived to be a very important o…