Published April 1, 1991 | Version v1
Journal article Metadata-only

Extragalactic globular clusters. II - The M31 globular cluster system

Creators

  • 1. Lick Observatory, Santa Cruz, CA (USA)
  • 2. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA)

Description

Metallicities for 150 globular clusters associated with M31 are derived using the strengths of six absorption features in the cluster-integrated spectra. The properties of the M31 cluster system are very similar to those of the Galactic system. No dependence of metallicity on cluster luminosity is found. The number distribution as a function of metallicity is consistent with that of Galactic clusters. There is evidence for a weak metallicity gradient as a function of projected radius. The mean metallicity Fe/H is equal to -1.2, slightly higher than the mean for the Galactic system. 48 refs

Additional details

Publishing Information

Journal Title
Astrophysical Journal
Journal Volume
370
Series
Astrophys. J.
Journal Page Range
495-504
ISSN
0004-637X
CODEN
ASJOA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
22067679
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
ABSORPTION SPECTRA; CHEMICAL COMPOSITION; COMPARATIVE EVALUATIONS; ELEMENT ABUNDANCE; GALACTIC EVOLUTION; GALAXIES; LUMINOSITY; MILKY WAY; MORPHOLOGICAL CHANGES; RADIAL VELOCITY; STAR CLUSTERS
Descriptors DEC
EVALUATION; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; QUANTITY RATIO; SPECTRA; VELOCITY