Searching for unknown open clusters in the Tycho-2 catalog

Details Searching for unknown open clusters in the Tycho-2 catalog Searching for unknown open clusters in the Tycho-2 catalog

2003-09-08

arxiv.org/abs/astro-ph/0309232v1

Astron.Astrophys.410:565-576,2003

Astronomy and Astrophysics

Astrophysics

14 pages, 6 figures. Accepted by A&A

Scientific paper

10.1051/0004-6361:20031280

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 Tycho2 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 about 600 pc) open clusters never studied before.

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