NOAO >   Observing Info >   Approved Programs >   2011A-0353

Small NOAO Logo

Proposal Information for 2011A-0353


PI: Randa Asa'd, University of Cincinnati, asadrs@mail.uc.edu
Address: Physics Department, P.O.Box 210011, Cincinnati, OH 45221, U.S.A

CoI: Andrea Ahumada, ESO
CoI: Margaret Hanson, University of Cincinnati

Title: Spectra of star clusters in the LMC as an age indicator.

Abstract: We propose to obtain spectrophotometry for a sample of 40 LMC star clusters of different ages to provide a means to accurately calibrate their integrated spectral properties in terms of age and metallicity. Our sample of 40 clusters have previously established ages and metallicities from modern, stellar, color-magnitude diagrams and the analysis of individual red giants spectra. This calibration effort is essential for improving studies of unresolved, extragalactic stellar populations. Integrated spectroscopy of stellar clusters is particularly important to obtain ages and metallicities of star clusters in distant galaxies, to determine their star formation and chemical enrichment history.


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 >   2011A-0353

noaoprop-help@noao.edu

Small NOAO Logo