Discovery of new Milky Way star cluster candidates in the 2MASS point source catalog. II. Physical properties of the star cluster CC01
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Date
2003
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Abstract
Three new obscured Milky Way clusters were detected as surface density peaks in the 2MASS point source catalog during our on-going search for hidden globular clusters and massive Arches-like star clusters. One more cluster was discovered serendipitously during a visual inspection of the candidates.
The first deep J, H, and K-s imaging of the cluster [IBP 2002] CC 01 is presented. We estimated a cluster age of similar to1-3 Myr, distance modulus of (m-M)(0)=12.56+/-0.08 mag (D=3.5 kpc), and extinction of A(V)similar to7.7 mag. We also derived the initial mass function slope for the cluster: Gamma=-2.23+/-0.16 (Gamma(Salpeter)=-2.35). The integration over the initial mass function yielded a total cluster mass M-total=1800+/-200 M-circle dot. CC 01 appears to be a regular, not very massive star cluster, whose formation has probably been induced by the shock front from the nearby HII region Sh 2-228.
The first deep J, H, and K-s imaging of the cluster [IBP 2002] CC 01 is presented. We estimated a cluster age of similar to1-3 Myr, distance modulus of (m-M)(0)=12.56+/-0.08 mag (D=3.5 kpc), and extinction of A(V)similar to7.7 mag. We also derived the initial mass function slope for the cluster: Gamma=-2.23+/-0.16 (Gamma(Salpeter)=-2.35). The integration over the initial mass function yielded a total cluster mass M-total=1800+/-200 M-circle dot. CC 01 appears to be a regular, not very massive star cluster, whose formation has probably been induced by the shock front from the nearby HII region Sh 2-228.
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Galaxy : open clusters and associations : general, infrared : general