Multicolour photometry of red giants in three southern open clusters

Details Multicolour photometry of red giants in three southern open clusters Multicolour photometry of red giants in three southern open clusters

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.241..301c&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 241, Nov. 15, 1989, p. 301-310. Research supported by C

Mathematics

Logic

6

Astronomical Photometry, Open Clusters, Red Giant Stars, Stellar Evolution, Abundance, Hertzsprung-Russell Diagram, Interstellar Extinction, Southern Sky, Ubv Spectra

Scientific paper

New UBV photometry of stars in the southern open clusters NGC 4349, 5316, and 6494 is presently used to derive reddenings, distances, and abundances; the application of two criteria for photometric membership has led to the ability to discriminate between red field objects and physical members of these clusters. No clear evidence of CNO enhancement is found in any of the clusters. The mass results obtained suggest that the cluster giants could have undergone mass loss during their red giant evolutionary phase.

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