J. P. Dietrich

TL;DR: Euclid is a European Space Agency medium-class mission selected for launch in 2020 within the cosmic vision 2015-2025 program as discussed by the authors, which will explore the expansion history of the universe and the evolution of cosmic structures by measuring shapes and red-shift of galaxies as well as the distribution of clusters of galaxies over a large fraction of the sky.

TL;DR: In this article, the authors report the discovery of eight new ultra-faint dwarf galaxy candidates in the second year of optical imaging data from the DES, six of these candidates are detected at high confidence, while two lower-confidence candidates are identified in regions of non-uniform survey coverage.

TL;DR: The performance of GALSIM meets the stringent requirements of high precision image analysis applications such as weak gravitational lensing, fo r current datasets and for the Stage IV dark energy surveys of the Large Synoptic Survey Telescope, ESA's Euclid mission, and NASA’s WFIRST-AFTAmission.

TL;DR: In this article, the authors describe the observations and resultant galaxy cluster catalog from the 2770 deg$^2$ SPTpol Extended Cluster Survey (SPT-ECS).

TL;DR: The Dark Energy Survey (DES) as mentioned in this paper is a next generation optical survey aimed at understanding the accelerating expansion of the universe using four complementary methods: weak gravitational lensing, galaxy cluster counts, baryon acoustic oscillations, and Type Ia supernovae.