SIMBAD references

2007A&A...468..151P - Astronomy and Astrophysics, volume 468, 151-161 (2007/6-2)

Towards absolute scales for the radii and masses of open clusters.


Abstract (from CDS):

In this paper we derive tidal radii and masses of open clusters in the nearest kiloparsecs around the Sun. For each cluster, the mass is estimated from tidal radii determined from a fitting of three-parameter King profiles to the observed integrated density distribution. Different samples of members are investigated. For 236 open clusters, all contained in the catalogue ASCC-2.5, we obtain core and tidal radii, as well as tidal masses. The distributions of the core and tidal radii peak at about 1.5pc and 7-10pc, respectively. A typical relative error of the core radius lies between 15% and 50%, whereas, for the majority of clusters, the tidal radius was determined with a relative accuracy better than 20%. Most of the clusters have tidal masses between 50 and 1000m, and for about half of the clusters, the masses were obtained with a relative error better than 50%.

Abstract Copyright:

Journal keyword(s): Galaxy: open clusters and associations: general - solar neighbourhood - Galaxy: stellar content

VizieR on-line data: <Available at CDS (J/A+A/468/151): table2.dat>

CDS comments: Clusters ASCC NNN identified as [KPR2005] NNN in Simbad

Simbad objects: 241

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