Document Type
Article
Publication Date
4-1-2009
Publication Title
The Astrophysical Journal
Department
Department of Physics and Astronomy
Abstract
The first paper in this series explored the effects of altering the chemical mixture of the stellar population on an element-by-element basis on stellar evolutionary tracks and isochrones to the end of the red giant branch. This paper extends the discussion by incorporating the fully consistent synthetic stellar spectra with those isochrone models in predicting integrated colors, Lick indices, and synthetic spectra. Older populations display element ratio effects in their spectra at higher amplitude than younger populations. In addition, spectral effects in the photospheres of stars tend to dominate over effects from isochrone temperatures and lifetimes, but, further, the isochrone-based effects that are present tend to fall along the age-metallicity degeneracy vector, while the direct stellar spectral effects usually show considerable orthogonality.
DOI
10.1088/0004-637X/694/2/902
Original Citation
Hyun-chul Lee et al 2009 ApJ 694 902
Dartmouth Digital Commons Citation
Lee, Hyun-chul; Worthey, Guy; Dotter, Aaron; and Chaboyer, Brian, "Stellar Population Models and Individual Element Abundances. Ii. Stellar Spectra and Integrated Light Models" (2009). Dartmouth Scholarship. 2219.
https://digitalcommons.dartmouth.edu/facoa/2219
