Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....103..163h&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 103, Jan. 1992, p. 163-189.
Astronomy and Astrophysics
Astronomy
31
Abundance, Infrared Photometry, Open Clusters, Red Giant Stars, Stellar Luminosity, Stellar Temperature, Color-Color Diagram, Color-Magnitude Diagram, Interstellar Extinction, Magellanic Clouds, Metallicity, Stellar Composition
Scientific paper
Results are presented from an analysis of literature data from IR observations of more than 100 red giants and clump stars in eight old open clusters: Melotte 66, M67 (NGC 2682), NGC 2204, NGC 2243, NGC 2420, NGC 2477, NGC 2506, and NGC 2660. The best available optical photometry for these stars was assembled to yield a consistent set of integrated physical parameters for these clusters, including reddening, distance modulus, abundance, and age. From color-color and color-magnitude diagrams that make use of both the IR and optical data, several stars were identified as probable field stars rather than cluster members.
Cohen Judith Gamora
Frogel Jay. A.
Houdashelt Mark L.
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