Brice Ménard (IAS) gave a nice talk on the galaxy–mass cross-correlation function as determined by lensing magnification, not shear (as Sheldon is determining it here at NYU). It is an ambitious project with good future prospects. In addition, he gets for free a measure of the dust extinction associated with galaxies, the galaxy–dust cross-correlation, as it were. He discussed publication bias
in the previous literature on magnification bias, and gave some evidence that the set of observational results published is, on average, higher than expected because those with null results didn't publish! In other news, he also showed what I think is a galaxy light–gas cross-correlation function, made by stacking quasar images where MgII absorption is present at lower redshift. This is a promising technique for measuring gas contents and extents of large samples of galaxies, though only statistically.
Quintero is nearly done with his response to referee, which is quite a bit of hard work. Blanton, Berlind, and I discussed with him and promised him comments on what he has so far.
Wu and I discussed the problem cases
in her match of Binggeli's Virgo Cluster Catalog to the SDSS catalog.
I remembered that HST proposals are due next week and panicked.
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