The usage of the Asymptotic Giant Branch Star Features As Age Indicators in Post-Starburst Galaxies

M. Mouhcine; A. Lancon

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The usage of the Asymptotic Giant Branch Star Features As Age Indicators in Post-Starburst Galaxies

M. Mouhcine·A. Lancon

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Abstract

We investigate techniques that can be used to determine ages of recently star forming regions during the phase dominated in the near-IR by the asymptotic giant branch stars (10^8-10^9 yrs). In particular, we present selected near-IR spectroscopic features that identify the contribution of O-rich and C-rich AGB variable stars to the integrated spectra of post-starbursts. The observational strategy based on those features is presented. We discuss the robustness of our selected features in constraining the ages of the post-starburst population depending on its physical environment and on underlying evolved populations. The interplay between the integrated features of populations and the stellar parameters is discussed.

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M. Mouhcine, A. Lancon. 1999-06-08. The usage of the Asymptotic Giant Branch Star Features As Age Indicators in Post-Starburst Galaxies. https://arxiv.org/abs/astro-ph/9906147

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