| Issue |
A&A
Volume 379, Number 2, November IV 2001
|
|
|---|---|---|
| Page(s) | 453 - 460 | |
| Section | Galactic structure, stellar clusters, and populations | |
| DOI | https://doi.org/10.1051/0004-6361:20011353 | |
| Published online | 15 November 2001 | |
On the nature of five open cluster candidates projected close to the Galactic centre *,**
1
Instituto de Astronomía y Física del Espacio, CC 67, Suc. 28, 1428 Buenos Aires, Argentina
2
Observatorio Astronómico, Universidad Nacional de Córdoba, Laprida 854, 5000 Córdoba, Argentina
Corresponding author: A. E. Piatti, andres@iafe.uba.ar
Received:
2
August
2001
Accepted:
26
September
2001
We present CCD BVI observations obtained for 1759 stars in 4′
4′
regions around the unstudied southern stellar aggregates Ruprecht 103, 124, 129, 146
and 166, which are described as open clusters in several catalogues. Our analysis shows
that none of these stellar groups are genuine open clusters since no clear main sequences
or other meaningful features can be seen in their colour-magnitude diagrams. Star counts
carried out within and outside the cluster candidate fields not only support these results
but also show that the studied objects do not appear to be candidate late stages of star
cluster dynamical evolution.
Key words: open clusters and associations: individual: Ruprecht 103, 124, 129, 146, 166 / open clusters and associations: general
© ESO, 2001
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