Image Details
Caption: Fig. 1.
Contour map of M51 and NGC 5195 taken with SIS detectors (SIS0 + SIS1) superposed on optical image. Background is not subtracted. The contour levels are logarithmically spaced. The region between dashed lines is used to make a projected brightness profile presented in Fig. 2.
© 1998. The American Astronomical Society. All rights reserved. Printed in U.S.A.