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4 papers · 2 filters
Photometric characterization of the Dark Energy Camera
G. M. Bernstein, T. M. C. Abbott, R. Armstrong +9
We characterize the variation in photometric response of the Dark Energy Camera (DECam) across its 520~Mpix science array during 4 years of operation. These variations are measured…
Instrumental response model and detrending for the Dark Energy Camera
G. M. Bernstein, T. M. C. Abbott, S. Desai +11
We describe the model for the mapping from sky brightness to the digital output of the Dark Energy Camera, and the algorithms adopted by the Dark Energy Survey (DES) for inverting…
Forward Global Photometric Calibration of the Dark Energy Survey
D. Burke, E. S. Rykoff, S. Allam +56
Many scientific goals for the Dark Energy Survey (DES) require calibration of optical/NIR broadband photometry that is stable in time and uniform over the celestial sky…
COSMOGRAIL XVI: Time delays for the quadruply imaged quasar DES J0408-5354 with high-cadence photometric monitoring
F. Courbin, V. Bonvin, E. Buckley-Geer +74
We present time-delay measurements for the new quadruply imaged quasar DES J0408-5354, the first quadruply imaged quasar found in the Dark Energy Survey (DES). Our result is made p…