Do Galactic abundance gradients exist?

Details Do Galactic abundance gradients exist? Do Galactic abundance gradients exist?

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990iraj...19..144f&link_type=abstract

Irish Astronomical Journal (ISSN 0021-1052), vol. 19, Mar.-Sept. 1990, p. 144-146. Research supported by SERC.

Astronomy and Astrophysics

Astronomy

1

Abundance, B Stars, Interstellar Chemistry, Main Sequence Stars, Star Clusters, Stellar Spectra, Chemical Composition, Interstellar Matter, Metallicity, Spectrum Analysis

Scientific paper

High-resolution spectra of 20 stars belonging to the clusters NGC 6611, NGC 6231, h + Chi Persei, and the loose association Cepheus OBIII are obtained in order to investigate the chemical composition of the interstellar medium and relative abundance estimates. Abundances are derived by equating the observed line strength to those predicted by model atmospheres. The observed oxygen abundances are inspected in order to reduce possible systematic errors, and the same procedure is applied to the data sets for nitrogen, silicon, magnesium, and aluminum. It is concluded that evidence of a locally flat abundance gradient can be derived from the chemical compositions of four nearby young star clusters.

Affiliated with

Also associated with

No associations

Rating

Do Galactic abundance gradients exist? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Do Galactic abundance gradients exist?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Do Galactic abundance gradients exist? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1404707