15 citations · 27 across the 8 of their papers we have counts for
8 papers
Investigating the Circumgalactic Medium through Mg II absorption coincidence
Paryag Sharma, Raghunathan Srianand, Hum Chand +1
We present a statistical measurement of the transverse coherence of Mg II absorption using a large sample of 9204 absorber-centric quasar sightline pairs from t…
Cosmic Chance Superpositions: Largest Catalog of Quasar-Galaxy Pairs at a Projected Separation of kpc
Labanya Kumar Guha, Raghunathan Srianand, Rajeshwari Dutta
We present the largest catalogue to date of Galaxies On Top Of Quasars (GOTOQs), systems where the sightline to a background quasar passes directly through or very close to a foreg…
HI 21-cm Absorption Associated with Foreground Galaxies on Top of Quasars
Labanya Kumar Guha, Raghunathan Srianand, Rajeshwari Dutta
A systematic search for HI 21-cm absorption in Quasar-Galaxy Pairs (QGPs) provides a powerful means to map the distribution of cold gas around high-redshift star-forming galaxies.…
Circumgalactic medium of quasar host galaxies at 0.4<z<0.8 probed by strong Mg II absorption
Paryag Sharma, Raghunathan Srianand, Hum Chand +1
Using a sample of 166 projected quasar pairs we investigate the influence of active galactic nuclei on the circumgalactic medium (CGM) of the quasar host galaxies probed using stro…
Strong nebular emissions associated with MgII absorptions detected in the SDSS spectra of background quasars
Labanya Kumar Guha, Raghunathan Srianand
We present long-slit spectroscopic observations of 40 Galaxy On Top Of Quasars (GOTOQs) at using the South African Large Telescope. Using this a…
Host galaxies of Ultra-Strong MgII absorbers at
Labanya Kumar Guha, Raghunathan Srianand, Patrick Petitjean
We report spectroscopic identification of the host galaxies of 18 ultra-strong MgII systems (USMgII) at . We created the largest sample by merging these with 2…
Nature of the Galaxies On Top Of Quasars producing MgII absorption
Labanya Kumar Guha, Raghunathan Srianand
Quasar-galaxy pairs at small separations are important probes of gas flows in the disk-halo interface in galaxies. We study host galaxies of 198 MgII absorbers at $0.39\le z_{abs}\…
Host Galaxies of Ultra Strong Mg II absorbers at z 0.5
Labanya Kumar Guha, Raghunathan Srianand, Rajeshwari Dutta +3
From a sample of 109 candidate Ultra-Strong Mg II (USMgII; having rest equivalent width of Mg II absorption, Angstrom) systems at z=0.4-0.6, we confirm 27 and identi…