205 citations · 1.2k across the 19 of their papers we have counts for
19 papers
Unmixed metals: Variations in the enrichment of z~4 sub-damped Lyman alpha systems
Trystyn A. M. Berg, Louise A. Welsh, Ryan J. Cooke +4
The chemical abundance patterns of near-pristine objects provide important constraints on the properties of the first generations of stars in the Universe. We present the chemical…
Sharpening quasar absorption lines with ESPRESSO: Temperature of warm gas at , constraints on the Mg isotopic ratio, and structure of cold gas at
P. Noterdaeme, S. Balashev, C. Ledoux +7
We present a high-resolution (R=140,000) spectrum of the bright quasar HE0001-2340 (z=2.26), obtained with ESPRESSO at the Very Large Telescope. We analyse three systems at z=0.45,…
Slicing the cool circumgalactic medium along the major-axis of a star-forming galaxy at
S. Lopez, N. Tejos, L. F. Barrientos +13
We present spatially-resolved echelle spectroscopy of an intervening MgII-FeII-MgI absorption-line system detected at toward the giant gravitational arc PSZ1…
Spotting high-z molecular absorbers using neutral carbon: Results from a complete spectroscopic survey with the VLT
P. Noterdaeme, C. Ledoux, S. Zou +4
While molecular quasar absorption systems provide unique probes of the physical and chemical properties of the gas as well as original constraints on fundamental physics and cosmol…
VLT/UVES observations of extremely strong intervening damped Lyman-alpha systems: Molecular hydrogen and excited carbon, oxygen and silicon at log N(HI)=22.4
P. Noterdaeme, R. Srianand, H. Rahmani +5
We present a detailed analysis of three extremely strong intervening DLAs (log N(HI)>=21.7) observed towards quasars with VLT/UVES. We measure overall metallicities of [Zn/H]~-1.2,…
Fundamental constants and high resolution spectroscopy
P. Bonifacio, H. Rahmani, J. B. Whitmore +14
Absorption-line systems detected in high resolution quasar spectra can be used to compare the value of dimensionless fundamental constants such as the fine-structure constant, alph…