It appears that Zolotov does confirm the Grillmair et al tidal stream candidate—we can't say if it is a stream, but a linear feature does appear to be there.
Michael Brown (Princeton) spoke about dry merger rates and the fading of red galaxy populations from his analysis of the NOAO Deep Wide Field Survey and the Spitzer IRAC Shallow Survey. He finds that dry merger rates must be fairly low since redshift of unity (consistent with Masjedi's work), but that significant stellar mass is being added to the red sequence over the same time period. His results have implications for the small-scale correlation function (a la Masjedi) and the abundance of post-starburst galaxies (a la Quintero) and the evolution of these with cosmic time.
No comments:
Post a Comment