CfA OIR Division Lunch Talks

April 15, 1999 Pratt Conference Room, 12:30 pm

Dwarf Galaxies: Key Players in Galaxy Evolution

Dr. Rafael Guzman, Yale


Luminous blue compact dwarfs (LBCDs) at z < 1.5 are low-mass starburst galaxies similar to the most luminous HII galaxies in the local universe. Recently, various studies have highlighted the key role that LBCDs play in galaxy evolution. For instance: i) LBCDs have evolved more than any other galaxy class in the last 8 Gyrs; ii) LBCDs are a major contributor to the observed enhancement of the star formation rate density of the universe at z < 1.5; iii) LBCDs may be lower-luminosity counterparts of the recently discovered star-forming galaxies at z ~3; and iv) some LBCDs at z < 1.5 are optimum candidates to be proto-spheroidal galaxies.