465 citations · 5k across the 107 of their papers we have counts for
5 papers · 1 filter
Lyman-alpha emitters gone missing: evidence for late reionization?
Tirthankar Roy Choudhury, Ewald Puchwein, Martin G. Haehnelt +1
We combine high resolution hydrodynamical simulations with an intermediate resolution, dark matter only simulation and an analytical model for the growth of ionized regions to esti…
Reionization constraints on primordial magnetic fields
Kanhaiya L. Pandey, T. Roy Choudhury, Shiv K. Sethi +1
We study the impact of the extra density fluctuations induced by primordial magnetic fields on the reionization history in the redshift range: . We perform a comprehens…
21 cm signal from cosmic dawn: Imprints of spin temperature fluctuations and peculiar velocities
Raghunath Ghara, T. Roy Choudhury, Kanan K. Datta
The 21 cm brightness temperature fluctuations from reionization promise to provide information on the physical processes during that epoch. We present a formalism for…
On the use of semi-numerical simulations in predicting the 21-cm signal from the epoch of reionization
Suman Majumdar, Garrelt Mellema, Kanan K. Datta +4
We present a detailed comparison of three different simulations of the epoch of reionization (EoR). The radiative transfer simulation (-RAY) among them is our benchmark.…
Probing reionization using quasar near-zones at redshift z ~ 6
Hamsa Padmanabhan, T. Roy Choudhury, R. Srianand
Using hydrodynamical simulations coupled to a radiative transfer code, we study the additional heating effects in the intergalactic medium (IGM) produced by quasars in th…