Diameters of Open Star Clusters

dc.creatorBergh, Sidney van den
dc.date2005-11-24
dc.date.accessioned2026-07-07T11:25:00Z
dc.date.available2026-07-07T11:25:00Z
dc.descriptionThe present paper presents a tabulation of data on all 600 Galactic open clusters for which it is presently possible to calculate linear diameters. As expected, the youngest `clusters' with ages < 15 Myr, contain a significant (greater than or equal to 20%) admixture of associations. Among intermediate-age clusters, with ages in the range 15 Myr to 1.5 Gyr, the median cluster diameter is found to increase with age. Small compact clusters are rare among objects with ages > 1.5 Gyr. Open clusters with ages > 1 Gyr appear to form what might be termed a `cluster thick disk', part of which consistst of objects that were probably captured gravitationally by the main body of the Galaxy.
dc.descriptionAstronomical Journal, in press
dc.identifierhttps://arxiv.org/abs/astro-ph/0511702
dc.identifierhttp://arxiv.org/abs/astro-ph/0511702
dc.identifierAstron.J.131:1559-1564,2006
dc.identifierdoi:10.1086/499532
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195380
dc.subjectAstrophysics
dc.titleDiameters of Open Star Clusters
dc.typetext

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