Star Clusters in the Galactic Anticenter Stellar Structure: New Radial Velocities & Metallicities
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ID: 283039
2004
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Abstract
The Galactic Anticenter Stellar Structure (GASS) has been identified with
excess surface densities of field stars in several large area sky surveys, and
with an unusual, string-like grouping of star clusters. Some members of the
cluster grouping have radial velocities (RVs) consistent with the observed GASS
velocity-longitude trend. We provide new RV measurements of stars in six
clusters that have been suggested to be associated with the GASS. We show that
the RVs of at least four clusters are consistent with the previously measured
RV trend for GASS. We also derive spectroscopic metallicities for four
clusters, and provide an improved age-metallicity relation for the clusters
apparently associated with GASS.
| Reference Key |
kunkel2004star
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| Authors | Peter M. Frinchaboy; Ricardo R. Munoz; Steven R. Majewski; Eileen D. Friel; Randy L. Phelps; William B. Kunkel |
| Journal | arXiv |
| Year | 2004 |
| DOI |
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