Searching for unknown open clusters in the Tycho-2 catalog

被引：28

作者：

Alessi, BS

Moitinho, A

Dias, WS

机构：

[1] Univ Sao Paulo, Dept Astron, BR-01060970 Sao Paulo, Brazil

[2] Univ Nacl Autonoma Mexico, Observ Astron Nacl, Ensenada, Baja California, Mexico

[3] CAAUL, Observ Astron Lisboa, P-1349018 Lisbon, Portugal

来源：

ASTRONOMY & ASTROPHYSICS | 2003年 / 410卷 / 02期

关键词：

Galaxy : open clusters and associations : general;

D O I：

10.1051/0004-6361:20031280

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present 11 new open cluster candidates found in a systematic search for unknown star clusters using the astrometric and photometric data included in the Tycho 2 catalog. The possible existence of these stellar aggregates is supported by the analysis of proper motions, color-magnitude diagrams, stellar density distributions, and by the visual inspection of the Digitized Sky Survey (DSS) plates. With these tools we were able to determine mean absolute proper motions as well as preliminary reddenings, distances and ages for the majority of the candidates. We found that most of them are possibly nearby (closer than similar to600 pc) open clusters never studied before.

引用

页码：565 / U4

页数：14

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