Name: Bryan Miller

Institution: Gemini Observatory

e-mail: bmiller(no-spam)gemini.edu

Partner Contry: GS

Science Meeting: Yes

User Meeting: Yes

NGO Staff Meeting: Yes

Presentation: Yes

Format: Oral

Title: GMOS Spectroscopy of Globular Clusters and Nuclei in Dwarf Elliptical Galaxies

Co-author: Jennifer Lotz (1) Michael Hilker (2) Thomas Puzia (3) Markus Kissler-Patig (4)

Co-authors' Institutions: (1) NOAO (2) University of Bonn (3) University of Victoria (4) ESO

Abstract:

We present result of a Gemini/GMOS program to measure spectroscopic metallicities and ages of globular clusters and nuclei in dwarf elliptical galaxies in the Virgo and Fornax Clusters. Preliminary results indicate that the globular clusters are old and metal-poor, very similar to the globular clusters in the Milky Way halo. The nuclei tend to be more metal-rich than the globular clusters but less metal rich and older, on average, than the stars in the bodies of the galaxies. The [alpha/Fe] ratio appears to be solar for the globulars, nuclei, and dEs, but the uncertainties do not exclude some globular clusters from being enhanced in alpha elements.