On the physical nature of six galactic open cluster candidates

PIATTI, ANDRÉS; E.; CLARIA OLMEDO, JUAN; AHUMADA, A.V.

Bol. Asoc. Arg. Astronomia

Claria,J.J., Alonso, V., Piatti, A.E.

Año: 2011 vol. 53 p. 157 - 160

0571–3285

We present CCD UBVI$_{KC}$ photometry in the fields of the unstudied open cluster (OC) candidates  Haffner,3, Haffner,5, NGC,2368, Haffner,25, Hogg,3 and Hogg,4. Our analysis shows that none  of these objects are genuine OCs since no clear main sequences or other typical features can be  seen in their colour-magnitude and colour-colour diagrams. Star counts performed within and outside  the OC candidate fields not only support these results but also suggest that these objects are not  OC remnants. A detailed version of this work can be seen in New Astronomy, 16, 161 (2011).