High-resolution ALMA observations of SDP.81. I. The innermost mass profile of the lensing elliptical galaxy probed by 30 milli-arcsecond images

Yoichi Tamura, Masamune Oguri, Daisuke Iono +3

We report a detailed modeling of a mass profile of a $z=0.2999$ massive elliptical galaxy using 30 milli-arcsecond resolution 1-mm Atacama Large Millimeter/submillimeter Array (A…