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20 January 2025

» arxiv » astro-ph/0701666

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The New Standard Stellar Population Models (NSSPM) -- The Prologue
Hyun-chul Lee ; Guy Worthey ; Scott C. Trager ; Aaron Dotter ; Brian Chaboyer ; Jason W. Ferguson ; Darko Jevremovic ; Eddie Baron ; Paula Coelho ; Michael M. Briley ;
Date:	23 Jan 2007
Abstract:	We are developing a brand new stellar population models with flexible chemistry (isochrones plus stellar colors and spectra) in order to set a new standard of completeness and excellence. Here we present preliminary results to assess the effects of stellar evolution models and stellar model atmosphere to the well-known Lick indices at constant heavy element mass fraction Z that self-consistently account for varying heavy element mixtures. We have enhanced chemical elements one by one. Our ultimate goal is to demonstrate 10% absolute mean ages for a sample of local galaxies derived from an integrated light spectrum.
Source:	arXiv, astro-ph/0701666
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