Looking for hidden blazars at lower galactic latitudes using the VVV survey

ANA CAROLINA PICHEL; LAURA GEMA DONOSO; BARAVALLE, LAURA DANIELA; ALONSO, M. V.

Bento Goncalves

Simposio; IAU Symposium 359: Galaxy Evolution andFeedback Across Different Environments (GALFEED); 2020

IAU

Our goal is to find blazars among the unidentified gamma-ray sources detected with Fermi-LAT in the crowed galactic plane region. Searching for photometric characteristics of blazars in the near IR (Z, Y, J, H, Ks passbands) with the Vista Variables in the Vía Láctea (VVV survey) we found a method based on the different places that stars, galaxies and AGNs populate the color-magnitude and color-color diagrams, to associate blazars to unidentified gamma-ray sources. The blazars are associated with these sources with distinctive near-IR colors and in some cases, mid-IR colors from WISE. We shown the preliminary results of this methodology applied to 13 Fermi-LAT unidentified sources.