activity
20032023
most citedOn using visibility correlations to probe the HI distribution from the dark ages to the present epoch I: Formalism and the expected signal

165 citations · 1.3k across the 52 of their papers we have counts for

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Showing 2007 · astro-phShow all

2 papers · 2 filters

astro-ph2007★ 42 cited

HI power spectrum of the spiral galaxy NGC628

Prasun Dutta, Ayesha Begum, Somnath Bharadwaj +1

We have measured the HI power spectrum of the nearly face-on spiral galaxy NGC628 (M74) using a visibility based estimator. The power spectrum is well fitted by a power law $P(U)=A…

astro-ph2007★ 50 cited

Detecting ionized bubbles in redshifted 21 cm maps

Kanan K. Datta, Somnath Bharadwaj, T. Roy Choudhury

The reionization of the Universe, it is believed, occurred by the growth of ionized regions (bubbles) in the neutral intergalactic medium (IGM). We study the possibility of detecti…