Thursday, October 26, 2006, Pratt Conference Room at 12:30 pm
Building Giant Galaxies: When, Where and How?
Dr. Dan MacIntosh (UMASS/Amherst)
| I will outline an emerging picture for the evolution of the bimodal galaxy population from new insights based on major surveys of nearby and distant galaxies. Our current best view is of a growing but dead population of massive red spheroids and a star-forming yet static population of lower-mass blue disks. In particular, I will focus on the environments and processes that govern the assembly of high-mass red ellipticals, which continue to form at late times. I will also discuss the nature of massive blue galaxies over the redshift interval 0.2<0.8, and what that tells us about the hypothesis of blue-to-red galaxy migration. |
