Near-IR age-dating of red supergiant-dominated stellar populations

Details Near-IR age-dating of red supergiant-dominated stellar populations Near-IR age-dating of red supergiant-dominated stellar populations

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ap%26ss.324..241l&link_type=abstract

Astrophysics and Space Science, Volume 324, Issue 2-4, pp. 241-245

Astronomy and Astrophysics

Astrophysics

1

Star Clusters, Starburst Galaxies, Spectral Synthesis, Near-Infrared Spectra, Red Supergiants

Scientific paper

We present new spectral synthesis models for solar metallicity stellar populations, based on a library of stellar spectra that extends across near-IR wavelengths out to 2.4 µm at a resolution approaching 1000. We show that the spectra of massive star clusters in the starburst galaxy M 82 can be reproduced very well with these models. We compare near-IR spectroscopic ages with optical ages, and discuss the main sources of (systematic) errors that still affect those ages.

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