Daniel J. Eisenstein

TL;DR: In this paper, the authors investigate the accuracy of the most common closure methods, i.e., Eddington tensor choices, after reionization and study quasi-analytic test problems mimicking these situations: large-scale postreionization ionizing background fluctuations and radiative transfer in a predominantly ionized medium with discrete absorbers.

TL;DR: In this paper, the authors study the nature of red-selected galaxies at z 2-3 using the Hubble Ultra Deep Field (HUDF) and Spitzer IRAC photometry and derive photometric redshifts, masses and stellar population parameters for these objects.

TL;DR: In this article, the authors reported the discovery of eleven new variable DA white dwarf (ZZ Ceti) stars by deriving temperatures from model fits to spectra obtained from the Sloan Digital Sky Survey.

TL;DR: The DESI survey will measure large-scale structure using quasars as direct tracers of dark matter in the redshift range $0.9 2.1$ as mentioned in this paper.

TL;DR: In this paper, the dynamics of the core of the Sagittarius (Sgr) dwarf spheroidal (dSph) galaxy are explored using high-resolution (R~22,500), H-band, near-infrared spectra of over 1,000 giant stars in the central 3 deg^2 of the system, of which 328 are identified as Sgr members.