| Issue |
A&A
Volume 381, Number 3, JanuaryIII 2002
|
|
|---|---|---|
| Page(s) | 884 - 893 | |
| Section | Galactic structure, stellar clusters, and populations | |
| DOI | https://doi.org/10.1051/0004-6361:20011633 | |
| Published online | 15 January 2002 | |
NGC 2571: An intermediate-age open cluster with a White Dwarf candidate*
1
Facultad de Ciencias Astronómicas y Geofísicas, UNLP, and IALP (UNLP-CONICET), Paseo del Bosque s/n, 1900, La Plata, Argentina
2
Fellow of Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, Argentina
3
Post-doctoral fellow of CONICET
4
Sternwarte der Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany
Corresponding author: E. Giorgi, egiorgi@fcaglp.edu.ar
Received:
3
August
2001
Accepted:
18
October
2001
CCD UBVI imaging photometry was carried out in the field of
the open cluster NGC 2571. From the analysis of our data
we state the cluster is at a distance of 1380 ± 130 pc and its age
is 
yr. The cluster mass function has
a slope larger than a typical Salpeter's law. There are two notorious
features in NGC 2571: the cluster contains a high proportion of stars
located below the reference line that are serious candidates
to be metallic line stars (probably Am-Fm), and shows
also a sharp gap along its main sequence that cannot be
explained by a random process nor by a biased rejection of cluster
members. A striking blue object was detected in the cluster
field that could be a white dwarf candidate.
Key words: open clusters and associations: individual: NGC 2571 / stars: luminosity function, mass function / H-R diagrams / stars: chemically peculiar / stars: blue stragglers
© ESO, 2002
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