AAS Meeting #194 - Chicago, Illinois, May/June 1999
Session 5. Star Formation in Dwarfs and Irregulars
Display, Monday, May 31, 1999, 9:20am-6:30pm, Southwest Exhibit Hall

[Previous] | [Session 5] | [Next]

[5.05] Chemical composition of NGC 6822

D. Foo Kune, K.A. Venn (Macalester College), J.K. McCarthy (Caltech)

We present the results of a detailed model atmospheres analysis of an isolated A-type supergiant in NGC 6822. The star has V~18, yet coaddition of three 1-hour exposures using Keck HIRES, was sufficient to gain S/N~60. NGC 6822 is a nearby dwarf irregular galaxy, with a metallicity similar to that of the SMC from nebular abundance studies. We present new elemental abundances, and in particular element ratios, e.g., [O/Fe], that can be used to study the star formation history and chemical evolution of this galaxy.

If the author provided an email address or URL for general inquiries, it is a s follows:

[Previous] | [Session 5] | [Next]