On the physical nature of six galactic open cluster candidates

PIATTI, A. E.; CLARIÁ, J. J.; AHUMADA, A. V.

Salta

Congreso; 53 Reunion Anual de la Asociacion Argentina de Astronomia; 2010

IATE - UNS

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).