NOAO >   Observing Info >   Approved Programs >   2003B-0104

Small NOAO Logo

Proposal Information for 2003B-0104


PI: Javier Alonso-Garcia, University of Michigan, jalonso@astro.lsa.umich.edu
Address: Department of Astronomy, 500 Church St - 1029 Dennison Bldg, Ann Arbor, MI 48109, USA

CoI: Mario Mateo, University of Michigan
CoI: Kaspar von Braun, Carnegie Institution/DTM

Title: Globular Clusters in the Direction of the Inner Galaxy

Abstract: The age, chemical and kinematic distributions of stellar populations provide powerful constraints on models of the formation and evolution of the Milky Way. The globular clusters constitute a specially useful case because the stars within individual clusters are coeval and spatially distinct. But a serious limitation in the study of many globular clusters -- especially those located near the Galactic Center -- has been the existence of large absolute and differential extinction by foreground dust. We propose to use the MOSAIC camera at the CTIO 4m telescope to map the differential extinction and remove their effects in a large sample of globular clusters located in the direction of the inner Galaxy using a technique refined recently by von Braun and Mateo (2001). These observations and their analyses will let us produce high quality color-magnitude diagrams of these poorly studied clusters that will allow us to determine these clusters' relative ages, distances and chemistry and to address important questions about the formation and the evolution of the inner Galaxy.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2003B-0104

noaoprop-help@noao.edu

Small NOAO Logo