Searching for extended objects in the VVV Survey

LAURA DANIELA BARAVALLE, M. V. ALONSO, J. L. NILO CASTELLON

Córdoba

Encuentro; 5th Friends of Friends Meeting; 2015

Instituto de Astronomía Teórica y Experimental (CONICET)

The VVV survey (VISTA Variables in the Via Lactea) gives us a great opportunity to study the distribution of galaxies, obscured by the presence of the Milky Way. This survey includes observations in five near-infrared passbands of the bulge and part of the disk of the Galaxy. Our work consists in the analysis of the d115 and d010 TILES looking for extended objects. We take into account the star-galaxy separation given by SExtractor and PSF, we obtain photometric properties of the extended objects. As a first step, we also perform a visual inspection of the field. We find 200 extended objects that are considered galaxy candidates. Our main goal is to automatically detect these extended objects and to separate them in a photometric way.