Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...281..141c&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 281, June 1, 1984, p. 141-147.
Astronomy and Astrophysics
Astrophysics
16
Globular Clusters, Spiral Galaxies, Star Clusters, Stellar Evolution, Abundance, Astronomical Photometry, Carbon Stars, Infrared Radiation, Line Spectra, Magellanic Clouds, Milky Way Galaxy, Radial Velocity, Stellar Color
Scientific paper
A selection of clusters in M33 is studied using three different observational techniques which give consistent quantitative results. M33 contains clusters which resemble galactic globular clusters as well as clusters as young as 100 million years; the luminous clusters thus have an age range similar to those of the Magellanic Clouds rather than those of the Milky Way of M31. The four true globular clusters in the present sample are all more metal poor than 47 Tuc. Based on limited data, the carbon star contribution to the integrated infrared light of the intermediate age clusters in M33 is approximately the same as in the intermediate age clusters in the Magellanic Clouds.
Cohen Judith Gamora
Persson Eric S.
Searle Leonard
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