1997/11/10 by Uta Fritze v. Alvensleben, Uta Fritze - v. Alvensleben, Alvensleben, Uta Fritze - v.
Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9711090
4 pages Latex, no figures, using jd.sty To appear in the proceedings of IAU JD1 `Abundance Ratios of the Oldest Stars', August 1997, Kyoto, Japan, Highlights of Astronomy
arxiv created 1997/11/10 · openalex publication_date 1997/11/10 · arxiv updated 2009/12/01 · openalex created_date 2022/10/01 · openalex updated_date 2026/07/28
Our unified chemical and spectrophotometric evolution code allows to\nsimultaneously study the ISM abundances of a series of elements and the\nspectral properties of the stellar population in our model galaxies. We use\nstellar evolutionary tracks, yields, spectra, color and absorption index\ncalibrations for 5 different metallicities and account for the increase in\ninitial metallicity of successive generations of stars. For any kind of stellar\nsystem, as described by its star formation history and IMF, we thus can\ndirectly compare the time evolution of gaseous and stellar abundance ratios.\nSpiral galaxy models that successfully reproduce spectral properties as well as\nISM abundances of nearby templates are combined with a cosmological model and\ncompared to damped Lyman \α absorbers. For early type galaxies various\nformation scenarii -- initial monolithic collapse, spiral-spiral merger,\nhierarchical formation -- are tested with respect to their predicted spectral\nenergy distributions from UV to NIR and absorption indices and index ratios, as≠.g. [MgFe].\n