Dissolving star cluster candidates

被引：42

作者：

Bica, E ^{[1
]}

Santiago, BX ^{[1
]}

Dutra, CM ^{[1
]}

Dottori, H ^{[1
]}

de Oliveira, MR ^{[1
]}

Pavani, D ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, IF, BR-91501970 Porto Alegre, RS, Brazil

来源：

ASTRONOMY & ASTROPHYSICS | 2001年 / 366卷 / 03期

关键词：

galaxy : open clusters and associations : general;

D O I：

10.1051/0004-6361:20000248

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a list of 34 neglected entries from star cluster catalogues located at relatively high galactic latitudes (\b\ > 15 degrees) 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.

引用

页码：827 / 833

页数：7

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