Moustakas gave group meeting, about the evolution in the mass–metallicity relation. Last year he came and gave a job talk on the same subject, and one very interesting thing has changed: If he factors in reasonable luminosity evolution for galaxies, his evolution in the luminosity–metallicity relation is severely diminished. His results are now (nearly) consistent with no chemical evolution whatsoever for massive galaxies. On the other hand, he does find that at high redshifts there is a (rare) population of massive but low-metallicity galaxies. Maybe these are proto-galaxies?
Mierle assigned me the job of building the testbed for the astrometry.net tweak and online systems. I have started, and soon I will be contacting the alpha users for sample images.
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