The Double Cluster G185 in M31
Abstract
We have identified a small globular cluster in M31 located approximately 4' northwest of the M31 globular cluster G185. While several multiple globular clusters have been observed in the Magellanic Clouds none have been found in the Galaxy or in M31. We estimate the probability of such a chance line-of-sight alignment occurring near the nucleus of M31 to be 0.09+/-0.03 and find no obvious indication of any tidal deformation in either cluster, as would be expected if the clusters were interacting. Two-dimensional modeling suggests G185 has a King [AJ, 71,64(1966)] concentration of c = 1.11 +/- 0.08 while the second globular cluster has c = 0.67+/-0.17 and is physically smaller than G185. Both objects have integrated dereddened colors similar to those of Galactic globular clusters.
- Publication:
-
The Astronomical Journal
- Pub Date:
- May 1995
- DOI:
- 10.1086/117431
- arXiv:
- arXiv:astro-ph/9502059
- Bibcode:
- 1995AJ....109.2061H
- Keywords:
-
- GALAXIES: INDIVIDUAL: M31;
- GLOBULAR CLUSTERS: GENERAL;
- GALAXIES: NUCLEI;
- Astrophysics
- E-Print:
- 22 pages, ~1Mb postscript file http://www.astro.ubc.ca/~holland/bib.html/ ftp://nukta.astro.ubc.ca/pub/holland/G185_preprint.ps.Z