Spectroscopy of the globular clusters in the Fornax dwarf elliptical galaxy

Details Spectroscopy of the globular clusters in the Fornax dwarf elliptical galaxy Spectroscopy of the globular clusters in the Fornax dwarf elliptical galaxy

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989pasp..101..563r&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 101, June 1989, p. 563-569.

Astronomy and Astrophysics

Astronomy

9

Astronomical Spectroscopy, Dwarf Galaxies, Elliptical Galaxies, Globular Clusters, Radial Velocity, Absorption Spectra, Metallicity, Velocity Distribution

Scientific paper

Spectral observations of the integrated light of four of the globular clusters in the Fornax dwarf elliptical galaxy are discussed. A velocity dispersion of 4.7 km/s is found from data which have a mean differential velocity error of 1.7 km/s. The systemic heliocentric velocity is found to be +45 + or - 13 km/s. The spectra show absorption line strengths which are consistent with estimates by Buonanno et al. (1985) of the cluster metallicities and reinforce the conclusions of Fusi and Pecci (1987) concerning the variation of horizontal branch morphologies among the metal-weak, nonnuclear, clusters in the galaxy.

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