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6 papers · 2 filters
Crowded Field Galaxy Photometry: Precision Colors in the CLASH Clusters
Thomas Connor, Megan Donahue, Daniel D. Kelson +8
We present a new method for photometering objects in galaxy clusters. We introduce a mode-filtering technique for removing spatially variable backgrounds, improving both detection…
CLASH: Accurate Photometric Redshifts with 14 HST bands in Massive Galaxy Cluster Cores
A. Molino, N. Benítez, B. Ascaso +41
We present accurate photometric redshifts for galaxies observed by the Cluster Lensing and Supernova survey with Hubble (CLASH). CLASH observed 25 massive galaxy cluster cores with…
Models of the strongly lensed quasar DES J0408-5354
Adriano Agnello, Huan Lin, L. Buckley-Geer +82
We present gravitational lens models of the multiply imaged quasar DES J0408-5354, recently discovered in the Dark Energy Survey (DES) footprint, with the aim of interpreting its r…
Discovery of the Lensed Quasar System DES J0408-5354
H. Lin, E. Buckley-Geer, A. Agnello +78
We report the discovery and spectroscopic confirmation of the quad-like lensed quasar system DES J0408-5354 found in the Dark Energy Survey (DES) Year 1 (Y1) data. This system was…
Environmental dependence of the galaxy stellar mass function in the Dark Energy Survey Science Verification Data
J. Etherington, D. Thomas, C. Maraston +61
Measurements of the galaxy stellar mass function are crucial to understand the formation of galaxies in the Universe. In a hierarchical clustering paradigm it is plausible that the…
Eight new luminous z > 6 quasars selected via SED model fitting of VISTA, WISE and Dark Energy Survey Year 1 Observations
S. L. Reed, R. G. McMahon, P. Martini +60
We present the discovery and spectroscopic confirmation with the ESO NTT and Gemini South telescopes of eight new 6.0 < z < 6.5 quasars with z < 21.0. These quasars were pho…