Joseph F. Hennawi

TL;DR: Strong evidence of absorption of the spectrum of the quasar redwards of the Lyman α emission line (the Gunn–Peterson damping wing), as would be expected if a significant amount of the hydrogen in the intergalactic medium surrounding J1342 + 0928 is neutral, and a significant fraction of neutral hydrogen is derived, although the exact fraction depends on the modelling.

TL;DR: In this paper, a large sample of very red objects from the Sloan Digital Sky Survey and known dwarfs from the SDSS and the Two Micron All Sky Survey (2MASS) is presented.

TL;DR: In this paper, the authors presented a sample of 221 new quasar pairs with proper transverse separations Rprop < 1 h-1 Mpc over the redshift range 0.5 < z < 3.0, discovered from an extensive follow-up campaign to find companions around the Sloan Digital Sky Survey and 2dF QSO Redshift Survey quasars.

TL;DR: In this article, the authors proposed the Cosmic Dawn project, which used the ESO Telescopes at the La Silla Paranal Observatory (ESO-Paral Observatory).

TL;DR: The discovery of a lensed quasar, SDSS J1004 + 4112, which has a maximum separation between the components of 14.62 arcsec is reported, fully consistent with theoretical expectations based on the cold-dark-matter model.