898 citations · 3.6k across the 41 of their papers we have counts for
41 papers
Ghostly DLAs in SDSS DR16
Patrick Petitjean
In Petitjean (2026, A&A 710, 340), we revisited the origin of proximate damped Lyman-alpha absorbers (PDLAs), which trace cold gas within 3000 km/s of the quasar redshift, and inte…
Time variability of ultra-fast BAL outflows using SALT: C IV absorption depth based analysis
P. Aromal, R. Srianand, P. Petitjean
We probe the small-scale absorption line variability using absorption depth based analysis of a sample of 64 ultra-fast outflow (UFO) C IV broad absorption line (BAL) quasars monit…
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…
MALS discovery of a rare HI 21-cm absorber at : origin of the absorbing gas in powerful AGN
P. P. Deka, N. Gupta, H. W. Chen +14
We report a new, rare detection of HI 21-cm absorption associated with a quasar (only six known at ) here towards J2339-5523 at = 1.3531, discovered through the Mee…
Estimation of the CMB temperature from atomic C\,{\sc i} and molecular CO lines in the interstellar medium of early galaxies
V. V. Klimenko, A. V. Ivanchik, P. Petitjean +2
The linear increase of the cosmic microwave background (CMB) temperature with cosmological redshift, , is a prediction of the standard cosmological CDM…
The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Baryon acoustic oscillations with Lyman- forests
Hélion du Mas des Bourboux, James Rich, Andreu Font-Ribera +36
We present a measurement of baryonic acoustic oscillations (BAO) from Lyman- (Ly) absorption and quasars at an effective redshift using the complete extended Baryoni…