The Mass of the Globular Cluster M92.
Abstract
Radial-velocity measurements of 23 spectrograms of 15 red giant stars in M92 are discussed. A mass of 3.3 X t 0 is derived for the cluster, and the corresponding mass-to-luminosity ratio is 2.0 in solar units. It is probable that there are intrinsic velocity variations in some of the cluster stars.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 1954
- DOI:
- 10.1086/145810
- Bibcode:
- 1954ApJ...119..197W