Metallicities for the outer-halo globular clusters PAL 3, 4, and 14

Details Metallicities for the outer-halo globular clusters PAL 3, 4, and 14 Metallicities for the outer-halo globular clusters PAL 3, 4, and 14

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....104..164a&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 104, no. 1, July 1992, p. 164-177.

Other

61

Abundance, Fine Structure, Galactic Structure, Globular Clusters, Halos, Metallicity, Astronomical Photometry, Calcium, Hydrogen, Iron

Scientific paper

The paper presents results of new determinations of metal abundances and radial velocities of the outer-halo globular clusters Pal 3, Pal 4, and Pal 14, located at galactocentric distances between 60 and 100 kpc. Observations are also presented of two giants in Pal 11, a cluster which resembles the other three in structure, but is located closer to the sun. Metallicity data were obtained using spectroscopy at the Ca II triplet, a technique which is a very sensitive metal abundance indicator and is reddening-independent. In addition, is very efficient in terms of telescope time.

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