EDP Sciences
Free access
Issue
A&A
Volume 366, Number 3, February II 2001
Page(s) 827 - 833
Section Stellar clusters and associations
DOI http://dx.doi.org/10.1051/0004-6361:20000248


A&A 366, 827-833 (2001)
DOI: 10.1051/0004-6361:20000248

Dissolving star cluster candidates

E. Bica, B. X. Santiago, C. M. Dutra, H. Dottori, M. R. de Oliveira and D. Pavani

Universidade Federal do Rio Grande do Sul, IF, CP 15051, Porto Alegre 91501-970, RS, Brazil

(Received 13 July 2000 / Accepted 10 November 2000 )

Abstract
We present a list of 34 neglected entries from star cluster catalogues located at relatively high galactic latitudes (|b| > 15$^{\circ}$) which appear to be candidate late stages of star cluster dynamical evolution. Although underpopulated with respect to usual open clusters, they still present a high number density contrast as compared to the galactic field. This was verified by means of (i) predicted model counts from different galactic subsystems in the same direction, and (ii) Guide Star Catalog equal solid angle counts for the object and surrounding fields. This suggests that the objects are physical systems, possibly star clusters in the process of disruption or their fossil remains. The sample will be useful for followup studies in view of verifying their physical nature.


Key words: galaxy: open clusters and associations: general

Offprint request: C. M. Dutra, dutra@if.ufrgs.br

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© ESO 2001