The abnormally metal-rich globular cluster NGC 6352.
Abstract
A color-magnitude (C-M) diagram has been constructed for the globular cluster NGC 6352 from photoelectric UBV measurements to V 19 for 63 stars and from photographic B, V measurements of 397 stars on five or more plate pairs. The C-M diagram, which has been found to be comparable to those of 47 Tucanae and M71, confirms the integrated photometry of van den Bergh and indicates that NGC 6352 is indeed metal rich. A blue "straggler" sequence is also identified. We derive the following properties for NG3 6352: = 0.32 + 0.05 mag, (m - M)0 = 13.5 + 0.3 mag, and [Fe/Hi > + 0.1 + 0.1. Thus NOC 6352 is likely the metal-richest globular cluster known at this time.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- July 1972
- DOI:
- 10.1086/151539
- Bibcode:
- 1972ApJ...175...77H