Spectroscopy of the lambda 7699 K I line among globular cluster giants

Details Spectroscopy of the lambda 7699 K I line among globular cluster giants Spectroscopy of the lambda 7699 K I line among globular cluster giants

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...323l..69c&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 323, Dec. 1, 1987, p. L69-L72. NSERC-supported rese

Astronomy and Astrophysics

Astrophysics

15

Abundance, Giant Stars, Globular Clusters, Line Spectra, Stellar Spectra, Aluminum, Potassium, Sodium, Stellar Atmospheres

Scientific paper

Echelle spectra have been obtained of giants in the globular clusters NGC 6752, M4, and 47 Tucanae to determine whether the Na I and Al I line enhancements found among the CN-rich stars are accompanied by enhancements of the 7699-A K I line. Correlated behavior would be expected if the sodium and aluminum lines are strengthened as a result of upper atmospheric cooling in the CN-rich giants. The K I line is found, however, to be of equal strength in the spectra of the CN-rich and CN-poor stars. This result strengthens the hypothesis that Na and Al line variations are due to real abundance differences among the cluster stars.

Affiliated with

Also associated with

No associations

Rating

Spectroscopy of the lambda 7699 K I line among globular cluster giants 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 Spectroscopy of the lambda 7699 K I line among globular cluster giants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectroscopy of the lambda 7699 K I line among globular cluster giants will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-901311