J. Frieman

TL;DR: In this article, the authors present an analysis of supernova light curves simulated for the upcoming DES supernova search using a code suite that generates and fits realistic light curves in order to obtain distance modulus/redshift pairs that are passed to a cosmology fitter.

TL;DR: In this article, the authors used computational resources at the SLAC National Accelerator Laboratory, a U.S. National Science Foundation (NSF) under Grant No. NSF PHY-1748958 through the Kavli Institute for Theoretical Physics program “The Small Scale Structure of Cold(?) Dark Matter,” and grant no. NGE1656518 through the NSF Graduate Research Fellowship received by E.O.

TL;DR: In this paper, the authors address the problem of separating stars from galaxies in future large photometric surveys, and formulate the requirements in terms of the completeness and purity provided by a given star/galaxy classifier.

TL;DR: In this article, the authors present griz light curves of 251 SNe Ia from the first 3 years of the DES-SN spectroscopically classified sample, which are used in the cosmological parameter analysis by employing a scene modeling approach that simultaneously models a variable transient flux and temporally constant host galaxy.

TL;DR: In this paper, a systematic search for ultra-faint Milky Way satellite galaxies using data from the Dark Energy Survey (DES) and Pan-STARRS1 (PS1) is reported.