Chemical Abundances in the Carina dSph Galaxy

Simple item page
dc.creatorSmecker-Hane, Tammy A.
dc.creatorMandushev, Georgi I.
dc.creatorHesser, James E.
dc.creatorStetson, Peter B.
dc.creatorDa Costa, G. S.
dc.creatorHatzidimitriou, Despina
dc.date1999-10-12
dc.date.accessioned2026-07-07T02:33:47Z
dc.date.available2026-07-07T02:33:47Z
dc.descriptionWe report on the chemical abundances of stars in the Carina dwarf spheroidal galaxy (dSph) derived from low-resolution spectra. We have determined values of [Fe/H] for 52 stars from the reduced equivalent width of the Ca II infrared triplet lines. The Carina dSph has a mean metallicity of [Fe/H] = -1.99 +/- 0.08 and an intrinsic metallicity dispersion 0.25 dex (1 sigma). By directly determining the chemical abundances of Carina stars through spectroscopy, we can overcome the age-metallicity degeneracy inherent in color-magnitude diagrams (CMDs) and determine its star-formation history with unprecedented accuracy.
dc.description4 pages, 2 figures, to appear in in "Spectro-Photometric Dating of Stars and Galaxies", eds. I. Hubeny, S. Heap & R. Cornett, (ASP: San Francisco), ASP Conf. Series, in press
dc.identifierhttps://arxiv.org/abs/astro-ph/9910212
dc.identifierhttp://arxiv.org/abs/astro-ph/9910212
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14989
dc.subjectAstrophysics
dc.titleChemical Abundances in the Carina dSph Galaxy
dc.typetext

Files

Collections

arXiv