Abstract:
Simulations expect an enhanced star-formation and active galactic nuclei (AGN) activity during galaxy mergers, which can lead to formation of binary/dual AGN. AGN feedback can
enhance or suppress star-formation. We have carried out a pilot study of a sample of ∼10 dual
nuclei galaxies with AstroSat’s Ultraviolet Imaging Telescope (UVIT). Here, we present the
initial results for two sample galaxies (Mrk 739, ESO 509) and deep multi-wavelength data of
another galaxy (Mrk 212). UVIT observations have revealed signatures of positive AGN feedback in Mrk 739 and Mrk 212, and negative feedback in ESO 509. Deeper UVIT observations
have recently been approved; these will provide better constraints on star-formation as well as
AGN feedback in these systems.
