233 citations · 237 across the 7 of their papers we have counts for
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Dust Biasing of Damped Lyman Alpha Systems: a Bayesian Analysis
Andrew Pontzen, Max Pettini
If damped Lyman alpha systems (DLAs) contain even modest amounts of dust, the ultraviolet luminosity of the background quasar can be severely diminished. When the spectrum is redsh…
Measurements of CaII absorption, metals, and dust in a sample of z~1 DLAs and subDLAs
Daniel Nestor, Max Pettini, Paul Hewett +2
We present observations of CaII, ZnII, and CrII absorption lines in 16 DLAs and 6 subDLAs at 0.6 < z < 1.3, obtained for the dual purposes of: (i) clarifying the relationship betwe…
A search for damped Lyman-alpha systems towards radio-loud quasars I: The optical survey
Sara L. Ellison, Brian A. York, Max Pettini +1
We present the results from the optical component of a survey for damped Lyman-alpha systems (DLAs) towards radio-loud quasars. Our quasar sample is drawn from the Texas radio surv…
Deuterium Abundance in the Most Metal-Poor Damped Lyman alpha System: Converging on Omega_baryons
Max Pettini, Berkeley J. Zych, Michael T. Murphy +2
The most metal-poor DLA known to date, at z = 2.61843 in the spectrum of the QSO Q0913+072, with an oxygen abundance only about 1/250 of the solar value, shows six well resolved D…
Damped Lyman Alpha Systems in Galaxy Formation Simulations
Andrew Pontzen, Fabio Governato, Max Pettini +6
We investigate the population of z=3 damped Lyman alpha absorbers (DLAs) in a recent series of high resolution galaxy formation simulations. The simulations are of interest because…
C, N, O Abundances in the Most Metal-Poor Damped Lyman alpha Systems
Max Pettini, Berkeley J. Zych, Charles C. Steidel +1
This study focuses on some of the most metal-poor damped Lyman alpha absorbers known in the spectra of high redshift QSOs, using new and archival observations obtained with UV-sens…