109 citations · 343 across the 9 of their papers we have counts for
9 papers
Directly constraining the spatial coherence of the circumgalactic medium
A. Afruni, S. Lopez, P. Anshul +9
One of the biggest puzzles regarding the circumgalactic medium (CGM) is the structure of its cool ( K) gas phase. While the kinematics of quasar absorption systems sugge…
Orientation effects on cool gas absorption from gravitational-arc tomography of a z = 0.77 disc galaxy
A. Fernandez-Figueroa, S. Lopez, N. Tejos +11
We use spatially-resolved spectroscopy of a distant giant gravitational arc to test orientation effects on MgII absorption equivalent width (EW) and covering fraction (kappa) in th…
The evolution of the Si IV content in the Universe from the epoch of reionization to cosmic noon
V. D'Odorico, K. Finlator, S. Cristiani +9
We investigate the abundance and distribution of metals in the high-redshift intergalactic medium and circum-galactic medium through the analysis of a sample of almost 600 SiIV abs…
Hunting for Metals Using XQ-100 Legacy Survey Composite Spectra
S. Perrotta, V. D'Odorico, F. Hamann +10
We investigate the NV absorption signal along the line of sight of background quasars, in order to test the robustness of the use of this ion as criterion to select intrinsic (i.e.…
Solving the conundrum of intervening strong MgII absorbers towards GRBs and quasars
L. Christensen, S. D. Vergani, S. Schulze +33
Previous studies have shown that the incidence rate of intervening strong MgII absorbers towards GRBs were a factor of 2 - 4 higher than towards quasars. Exploring the similar size…
On the selection of damped Lyman alpha systems using MgII absorption at 2<z<4
T. A. M. Berg, S. L. Ellison, J. X. Prochaska +8
The XQ-100 survey provides optical and near infrared coverage of 36 blindly selected, intervening damped Lyman alpha systems (DLAs) at 2 < z < 4, simultaneously covering the MgII d…
Chemical abundances of damped Lyman alpha systems in the XQ-100 survey
T. A. M. Berg, S. L. Ellison, R. Sanchez-Ramirez +8
The XQ-100 survey has provided high signal-noise spectra of 100 redshift 3-4.5 quasars with the X-Shooter spectrograph. The metal abundances for 13 elements in the 41 damped Lyman…
XQ-100: A legacy survey of one hundred 3.5 < z < 4.5 quasars observed with VLT/XSHOOTER
S. Lopez, V. D'Odorico, S. L. Ellison +23
We describe the execution and data reduction of the European Southern Observatory Large Programme "Quasars and their absorption lines: a legacy survey of the high-redshift universe…
The evolution of neutral gas in damped Lyman systems from the XQ-100 survey
R. Sánchez-Ramírez, S. L. Ellison, J. X. Prochaska +10
We present a sample of 38 intervening Damped Lyman (DLA) systems identified towards 100 quasars, observed during the XQ-100 survey. The XQ-100 DLA sample is combined wi…