211 citations · 973 across the 34 of their papers we have counts for
4 papers · 1 filter
Incidence of HI 21-cm absorption in strong FeII systems at
R. Dutta, R. Srianand, N. Gupta +5
We present the results from our search for HI 21-cm absorption in a sample of 16 strong FeII systems ((MgII ) Å and (FeII )…
HI 21-cm absorption survey of quasar-galaxy pairs: Distribution of cold gas around z<0.4 galaxies
R. Dutta, R. Srianand, N. Gupta +4
We present the results from our survey of HI 21-cm absorption, using GMRT, VLA and WSRT, in a sample of 55 z<0.4 galaxies towards radio sources with impact parameters (b) in the ra…
Composite Circumstellar Dust Grains
Ranjan Gupta, Dipak B. Vaidya, Rajeshwari Dutta
We calculate the absorption efficiencies of composite silicate grains with inclusions of graphite and silicon carbide in the spectral range 5--25. We study the variation in…
Mapping kiloparsec-scale structures in the extended HI disc of the galaxy UGC 00439 by HI 21-cm absorption
Rajeshwari Dutta, Neeraj Gupta, Raghunathan Srianand +1
We study the properties of HI gas in the outer regions (~2r_25) of a spiral galaxy, UGC 00439 (z = 0.01769), using HI 21-cm absorption towards different components of an extended b…