2011-07-29

extremely faint tidal features

David Martinez-Delgado (MPIA) gave a beautiful seminar today about his work obtaining extremely flat and senstitive images of nearby galaxies, showing that many have faint, tidal remnants of past accretion events. The data are beautiful, thanks to his exquisite flat-fielding. He and his team made most of the images with 10 or 20 cm (yes, cm) telescopes!

During the rest of the day, Lang and I worked on source detection in multi-exposure imaging; we are pretty sure we can beat all of the standard methods, but we don't have a clear demo yet.

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