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Spectral Indices of Stars at Super-solar Regime | | A. Buzzoni
; M. Chavez
; M.L. Malagnini
; C. Morossi
; | | Date: |
5 Jul 2001 | | Subject: | astro-ph | | Affiliation: | Telescopio Nazionale Galileo, La Palma Spain; INAOE, Mexico; Dip. Astronomia Univ. Trieste; Osservatorio di Trieste, Italy | | Abstract: | We derived Lick narrow-band indices for 139 candidate super metal-rich stars of different luminosity class previously studied in Malagnini et al. (2000). Indices include Iron Fe50, Fe52, Fe53, and Magnesium Mgb and Mg2 features. By comparing observations with Kurucz’ synthetic model atmospheres, no evidence is found for non-standard Mg vs. Fe relative abundance (i.e. [Mg/Fe]~ 0, on the average, for our sample). A comparison with the Worthey et al.(1994) and Buzzoni et al.(1992, 1994) fitting function predictions for [Fe/H] > 0 is performed and briefly discussed. | | Source: | arXiv, astro-ph/0107105 | | Services: | Forum | Review | PDF | Favorites | |
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