Massive galaxies over cosmic time 3: The role of gas and dust
Start date: 08 Nov 2010
Address: Arizona Inn, Tucson, Arizona, United States
It is now well established that the bulk of stars that constitute the old populations in present-day massive galaxies were formed at high redshift. Observations with the Spitzer Space Telescope have revealed that much of the star-formation at high redshift takes place in dusty galaxies with very high infrared luminosities. In addition, there is a growing awareness that many factors may regulate the progress of star formation in galaxies (for example, the accretion of gas through either continuous or discrete events; feedback from the growth of black holes and/or star formation; environmental effects, etc.). However, it is not clear under what conditions this early star formation occurred.