SIMBAD references

2006ApJ...646L.115O - Astrophys. J., 646, L115-L118 (2006/August-1)

AL 3 (BH 261): a new globular cluster in the Galaxy.


Abstract (from CDS):

AL 3 (BH 261), previously classified as a faint open cluster candidate, is shown to be a new globular cluster in the Milky Way, by means of B, V, and I color-magnitude diagrams. The main feature of AL 3 is a prominent blue extended horizontal branch. Its color-magnitude diagrams match those of the intermediate-metallicity cluster M5. The cluster is projected in a rich bulge field, also contaminated by the disk main sequence. The globular cluster is located in the Galactic bulge at a distance from the Sun d=6.0±0.5 kpc. The reddening is E(B-V)=0.36±0.03, and the metallicity is estimated to be [Fe/H]~-1.3±0.25. AL 3 is probably one of the least massive globular clusters of the Galaxy.

Abstract Copyright:

Journal keyword(s): globular clusters: individual (AL 3) - Stars: Hertzsprung-Russell Diagram

Simbad objects: 20

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