Image Details
Caption: Figure 9.
Sequence of 43 GHz VLBA images of BL Lac from the BEAM-ME program at 0.1 mas angular resolution. Contours represent total flux density from 0.01 Jy beam−1 (the lowest contour on every image) to 5.50 Jy beam−1 (the highest contour). There are 10 logarithmically equally spaced total flux contours from those minimum and maximum levels. The short sticks symbolize the direction of the electric vector polarization angle.
© 2025. The Author(s). Published by the American Astronomical Society.