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Laboratory measurement of the brighter-fatter effect in an H2RG infrared detector
Andrés A. Plazas, Charles A. Shapiro, R. Smith +2
The "brighter-fatter" (BF) effect is a phenomenon (originally discovered in charge coupled devices) in which the size of the detector point spread function (PSF) increases with bri…
Calibration of colour gradient bias in shear measurement using HST/CANDELS data
Xinzhong Er, Henk Hoekstra, Tim Schrabback +6
Accurate shape measurements are essential to infer cosmological parameters from large area weak gravitational lensing studies. The compact diffraction-limited point-spread function…
Nonlinearity and pixel shifting effects in HXRG infrared detectors
A. A. Plazas, C. Shapiro, R. Smith +2
We study the nonlinearity (NL) in the conversion from charge to voltage in infrared detectors (HXRG) for use in precision astronomy. We present laboratory measurements of the NL fu…