Year: 2007
Type: preprint
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 (Cornell University)
Authors: Lee, Hyun-chul, Worthey, Guy, Trager, Scott C., Dotter, Aaron, Chaboyer, Brian, Ferguson, Jason W., Jevremovic, Darko, Baron, Eddie, Coelho, Paula, Briley, Michael M.
Institution: Washington State University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: National Science Foundation
OpenAlex ID: W8858387