M. Hilker et al., THE BINARY (TRIPLE-QUESTIONABLE) STAR CLUSTER NGC-2136 37 IN THE LARGE-MAGELLANIC-CLOUD/, Astronomy and astrophysics, 299(2), 1995, pp. 37-40
We present Stromgren CCD photometry for the binary cluster NGC 2136/37
in the LMC and for its neighbouring field population. The common orig
in of NGC 2136 and 2137 is supported not only by their identical ages,
but also by their common Stromgren metallicity of -0.55 dex. A third
cluster may also have a common origin with NGC 2136/37, indicated by t
he fact that the three clusters are connected by regions of enhanced s
tar densities. No counterpart of such a configuration has yet been fou
nd in the Milky Way.