Image Details
Caption: Fig. 4.
Left: Spectral index map calculated pixel by pixel between 1420 MHz and 10.45 GHz. Contours and grey‐scale run from ﹩\alpha =-0.75﹩ (dark) to 0.0 (light) in steps of 0.15. The white contours indicate the emission at 1420 MHz convolved to the resolution of the 10.45 GHz observation (1.15﹩\arcmin﹩). Right: X‐ray image of the Boomerang taken with the ASCA satellite (Halpern et al. 2001b). The white contours represent the flat‐spectrum part of the radio nebula (see text). The white cross marks the position of the pulsar J2229+6114.
© 2006. The American Astronomical Society. All rights reserved. Printed in U.S.A.