Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....104.1365d&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 104, no. 4, p. 1365-1373, 1677.
Astronomy and Astrophysics
Astronomy
25
Asymptotic Giant Branch Stars, Local Group (Astronomy), Metallicity, Stellar Color, Stellar Composition, Stellar Spectrophotometry, Compact Galaxies, Elliptical Galaxies, Stellar Luminosity
Scientific paper
The stellar content of a field 100 arcsec from the center of M32 is investigated. A comparison of color-magnitude diagrams and giant branch color distributions with globular cluster sequences indicates that a significant metallicity dispersion is present in the observed field and that the dominant component is moderately metal poor, with (Fe/H) about -1.3. The V and I luminosity functions and the luminosity function of AGB stars reveal that the AGB tip occurs near M(bol) about -4.5, a value consistent with an old moderately metal-poor population. The implications of the findings for the origin and evolution of cE systems are considered.
Davidge Tim J.
Houston Jones Jane
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