Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.2005c&link_type=abstract
American Astronomical Society, AAS Meeting #211, #20.05; Bulletin of the American Astronomical Society, Vol. 39, p.771
Astronomy and Astrophysics
Astronomy
Scientific paper
The popular model for the formation of early-type galaxies is the hierarchical merging scenario. However, the details and frequency of merging are not yet known, particularly in dense environments. The high-mass end of the galaxy luminosity function, as the extreme example of the merger phenomenon, is the most sensitive to various merger model assumptions and thus provides an ideal testing ground for these models. I will present recent work utilizing wide-area spectroscopic surveys to place constraints on the star formation and merger histories of the most massive galaxies in the universe since z 1. In particular, I will show that massive red-sequence galaxies have had very little star formation since z 1, thus limiting the importance of gas-rich mergers since that epoch, and show that the number density of very massive galaxies has evolved little in that same epoch, suggesting that very massive galaxies assembled their stellar mass at z>1.
No associations
LandOfFree
Constraining the Evolution of the Most Massive Galaxies Since z 1 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Constraining the Evolution of the Most Massive Galaxies Since z 1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraining the Evolution of the Most Massive Galaxies Since z 1 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1475501