Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...253..580f&link_type=abstract
Astrophysical Journal, Part 1, vol. 253, Feb. 15, 1982, p. 580-592. Research supported by the California Institute of Technolog
Astronomy and Astrophysics
Astrophysics
40
Galactic Clusters, Giant Stars, Late Stars, M Stars, Magellanic Clouds, Star Distribution, Stellar Spectrophotometry, Abundance, Carbon Stars, Infrared Spectrophotometers, Spectral Energy Distribution, Stellar Evolution, Stellar Luminosity, Visible Spectrum
Scientific paper
Visual spectrophotometry and new broad-band photometric data obtained for 48 late-type giants in clusters in the MC are combined with published data to predict various evolutionary schemes for cool, luminous, carbon and oxygen rich stars. The MC cluster C stars have a range in spectral energy distributions quite similar to that of MC field C stars, and the LMC field contains M giants, which are redder and more luminous than any so far found in LMC or SMC clusters. This is attributed to the presence in the LMC field of a significant population of stars that are younger and/or more metal rich than the stars in the cluster sample. The locations of the NGC 1841 stars in a C-M diagram appear to be anomalous in the sense that its brightest stars have luminosities greater than the tips of giant branches of metal poor galactic globular clusters.
Cohen Judith Gamora
Frogel Jay. A.
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