INVESTIGADORES
PIATTI Andres Eduardo
artículos
Título:
First CCD $UBVI$ photometric analysis of six open cluster candidates
Autor/es:
PIATTI, ANDRES E.; CLARIA OLMEDO, JUAN; AHUMADA, A.V.
Revista:
NEW ASTRONOMY
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2011 vol. 16 p. 161 - 172
ISSN:
1384-1076
Resumen:
We have obtained CCD $UBVI_{KC}$ photometry down to V $sim$ 22 for the open cluster candidates Haffner,3, Haffner,5, NGC,2368, Haffner,25, Hogg,3 and Hogg,4 and their surrounding fields. None of these objects have been photometrically studied so far. Our analysis shows that these stellar groups are not genuine open clusters since no clear main sequences or other meaningful features can be seen in their colour-magnitude and colour-colour diagrams. We checked for possible differential reddening across the studied fields that could be hiding the characteristics of real open clusters. However, the dust in the directions to these objects appears to be uniformly distributed. Moreover, star counts carried out within and outside the open cluster candidate fields do not support the hypothesis that these objects are real open clusters or even open cluster remnants.
