230 citations · 1.8k across the 59 of their papers we have counts for
5 papers · 1 filter
Life in the last lane: Star formation and chemical evolution in an extremely gas-rich dwarf
Ayesha Begum, Jayaram N. Chengalur, Robert C. Kennicutt +2
We present an analysis of HI, H-alpha, and oxygen abundance data for NGC 3741. This galaxy has a very extended gas disk (~8.8 times the Holmberg radius), and a dark to luminous (i.…
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…
A search for HI 21cm absorption toward the highest redshift radio loud objects
C. L. Carilli, Ran Wang, M. van Hoven +3
We have searched for HI 21cm absorption toward the two brightest radio AGN at high redshift, J0924--2201 at , and J0913+5919 at , using the Giant Meter Wave Radio…
The HI content of star-forming galaxies at z = 0.24
Philip Lah, Jayaram N. Chengalur, Frank H. Briggs +12
We use observations from the Giant Metrewave Radio Telescope (GMRT) to measure the atomic hydrogen gas content of star-forming galaxies at z = 0.24 (i.e. a look-backtime of ~3 Gyr)…
HI 21cm absorption at towards PKS 0201+113
N. Kanekar, J. N. Chengalur, W. M. Lane
We report the GMRT detection of HI 21cm absorption from the damped Lyman- absorber (DLA) towards PKS 0201+113, the highest redshift at which 21cm absorption has be…