Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978aj.....83.1424d&link_type=abstract
Astronomical Journal, vol. 83, Nov. 1978, p. 1424-1429.
Astronomy and Astrophysics
Astronomy
31
Astronomical Photometry, Giant Stars, Late Stars, Open Clusters, Astronomical Catalogs, Cn Emission, Distance, G Stars, Interstellar Extinction, K Stars, Metals, Stellar Luminosity, Stellar Mass
Scientific paper
Results are presented for photoelectric photometry in the DDO intermediate-band system of G and K giants in the very old open cluster Melotte 66 and the old clusters NGC 4349, 5822, and 5823. Average reddenings, corrected mean distance moduli, and mean cyanogen anomalies are derived for the giants in these clusters, and several peculiar stars are identified. The results indicate that: (1) the giants in Melotte 66 are deficient in CN (and therefore in metallicity) relative to nearby K giants; (2) there is no evidence for a change in overall CN strength between the giant and horizontal branches of Melotte 66; (3) NGC 4349 and 5822 appear slightly richer in metals than nearby K giants; (4) NGC 5823 does not constitute a coherent sample of giants and is likely to be affected by considerable field-star contamination; and (5) there is only marginal evidence for a physical association between NGC 5822 and 5823.
No associations
LandOfFree
DDO photometry of giants in four southern open clusters 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 DDO photometry of giants in four southern open clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DDO photometry of giants in four southern open clusters will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1066778