Image Details
Caption: Figure 2.
Images of FIRST J1419+3940 at 1.6 GHz with the EVN on 2018 September 18 derived from the two gain calibrations performed on Tianma data (original, top, and scaled, bottom). Contours start at a 3σ rms noise level of 25 and 29 μJy beam−1, respectively, and increase by factors of ﹩\sqrt{2}﹩. The synthesized beams are represented by the dark gray ellipses at the bottom-left corner of each image.
© 2019. The American Astronomical Society. All rights reserved.