The Atacama Cosmology Telescope: measuring radio galaxy bias through cross-correlation with lensing

We correlate the positions of radio galaxies in the FIRST survey with the CMB lensing convergence estimated from the Atacama Cosmology Telescope over 470 deg 2 to determine the bias of these galaxies. We remove optically cross-matched sources below redshift z = 0:2 to preferentially select Active Galactic Nuclei (AGN). We measure the angular cross-power spectrum C g l at 4:4 signicance

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