Dwarf Galaxies as Cosmological Probes

Seminar | March 8 | 2 p.m. | C57 Hearst Field Annex

Speaker/Performer: Julio Navarro, Victoria

Sponsor: Department of Astronomy

A prime challenge to our understanding of galaxy formation concerns the scarcity of dwarf galaxies compared with the numerous low-mass halos expected in the current ΛCDM paradigm. This is usually accounted for by assuming that energetic feedback from evolving stars confines dwarf galaxy formation to relatively massive halos spanning a narrow mass range. I will highlight a number of observations that may be used to test this assumption and discuss the puzzles and challenges that arise from this analysis.

Event Contact: rhelgens@astro.berkeley.edu, 510-642-5275