Stellar content of nearby galaxies. II. The Local Group dwarf elliptical galaxy M32

Journal Article · Sun Oct 01 04:00:00 EDT 1989 · Astronomical Journal; (USA)

DOI:https://doi.org/10.1086/115216· OSTI ID:5021237

Freedman, W L ^[1]

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1. Carnegie Institution of Washington, Observatories, Pasadena, CA (USA)

Using the CCD camera on the Canada-France-Hawaii Telescope, color-magnitude (C-M) diagrams were obtained for brightest stars of the Local Group dwarf elliptical galaxy M32. Both the I vs (V-I) and I vs (R-I) CCD C-M diagrams reveal a red population of stars, the brightest of which resolve at I of about 19.5 mag. Data on the (V-I) and (R-I) colors indicate that the mean metallicity of M32 is greater than that of the most metal-rich Galactic globular clusters. A discontinuity in the I band luminosity function of the M32 was observed, which, if the distance modulus of M32 is comparable to that of M31, is consistent with the appearance of the tip of the first red giant branch in this galaxy. 37 refs.

• OSTI ID: 5021237
• Journal Information: Astronomical Journal; (USA), Journal Name: Astronomical Journal; (USA) Vol. 98; ISSN 0004-6256; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BACKGROUND RADIATION
CATALOGS
CHARGE-COUPLED DEVICES
CHEMICAL COMPOSITION
COLOR
CONFIGURATION
DOCUMENT TYPES
ELLIPTICAL CONFIGURATION
GALAXIES
GIANT STARS
LUMINOSITY
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
RED GIANT STARS
SEMICONDUCTOR DEVICES
SPECTROPHOTOMETRY
STAR CLUSTERS
STARS