e-Article
Chemical compositions of 26 distant late-type supergiants and the metallicity gradient in the galactic disk
Document Type
Journal Article
Author
Source
Astrophys. J.; (United States); 241:1
Subject
Language
English
Abstract
From an analysis of high-dispersion Mount Wilson spectroscopic data, we have obtained atmospheric parameters and chemical abundances for 26 distant supergiants of spectral types G through M. Iron-to-hydrogen ratios wth respect to the Sun, (Fe/H), can be determined from this material with an uncertaintly of +- 0.2 dex.