211 citations · 1.1k across the 31 of their papers we have counts for
32 papers
The End of Helium Reionization at z~2.7 Inferred from Cosmic Variance in HST/COS HeII Lyman Alpha Absorption Spectra
Gábor Worseck, J. Xavier Prochaska, Matthew McQuinn +6
We report on the detection of strongly varying intergalactic HeII absorption in HST/COS spectra of two z~3 quasars. From our homogeneous analysis of the HeII absorption in these an…
Solar abundances and granulation effects
E. Caffau, H. -G. Ludwig, M. Steffen
The solar abundances have undergone a major downward revision in the last decade, reputedly as a result of employing 3D hydrodynamical simulations to model the inhomogeneous struct…
The Aspen--Amsterdam Void Finder Comparison Project
Joerg M. Colberg, Frazer Pearce, Caroline Foster +16
Despite a history that dates back at least a quarter of a century studies of voids in the large--scale structure of the Universe are bedevilled by a major problem: there exist a la…
Luminous K-band Selected Quasars from UKIDSS
Natasha Maddox, Paul C. Hewett, S. J. Warren +1
The largest K-band flux-limited sample of luminous quasars to date has been constructed from the UKIDSS Large Area Survey Early Data Release, covering an effective area of 12.8 deg…
The Influence of Metallicity on Star Formation in Protogalaxies
A. -K. Jappsen, S. C. O. Glover, R. S. Klessen +1
In cold dark matter cosmological models, the first stars to form are believed to do so within small protogalaxies. We wish to understand how the evolution of these early protogalax…
Molecular gas in nearby low-luminosity QSO host galaxies
T. Bertram, A. Eckart, S. Fischer +4
This paper addresses the global molecular gas properties of a representative sample of galaxies hosting low-luminosity quasistellar objects. An abundant supply of gas is necessary…