Automatic removal of fringes from EFOSC images

Snodgrass, Colin and Carry, Benoît (2013). Automatic removal of fringes from EFOSC images. Messenger, 152 pp. 14–16.

URL: http://hal.upmc.fr/hal-00844047/document

Abstract

EFOSC, in common with many instruments with older CCDs, shows a fringe pattern in images taken at red wavelengths. These fringes are difficult to remove without significant manual adjustment for each individual frame, which is a time-consuming exercise, but necessary for reliable photometry of faint objects across the whole field of view. We present a simple technique to automatically remove fringes from CCD images, and provide scripts (available on the ESO website) to apply this to EFOSC data, or to any other images.

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