ACP Seminar (Astronomy - Cosmology - Particle Physics)

Speaker: Anna Frebel (MIT)
Title: Finding the most metal-poor stars with SkyMapper and first results, including a [Fe/H]<-7 star
Date (JST): Fri, Nov 22, 2013, 14:00 - 15:00
Place: Seminar Room A
Abstract: The early chemical evolution of the Galaxy and the Universe is vital to our understanding of a host of astrophysical phenomena. Since the oldest, most metal-poor stars are relics from the high-redshift universe, they probe the chemical and dynamical conditions of a time when large galaxies first began to assemble. With the new SkyMapper telescope, we have been searching for additional metal-poor stars with great success. I will report on these ongoing efforts and our discovery of a new star with a record low abundance of [Fe/H] < -7.0.