Image Details
Caption: Fig. 1.
Contour levels for (a), (b), (c), (d), (e), (g), (i), (j), and (n)–(u) are −1, 1, 2, 4, 8, 16, 32, and 64 percent of the peak flux density in the map as given in Table 1. The contour levels for (f), (h), and (k)–(m) are −0.5, 0.5, 1, 2, 4, 8, 16, 32, and 64 percent of the peak flux densities as given in Table 1.
© 1998. The American Astronomical Society. All rights reserved. Printed in U.S.A.