Image Details
Caption: Fig. 7.
Optical cutouts (﹩20^{\prime \prime }\times 20^{\prime \prime }﹩) for the 168 X‐ray sources, overlapped by black X‐ray isointensity contours (at 3, 5, 10, 20, and 100 σ above the local background). The small white box indicates an optical counterpart candidate, and the circle in the center indicates the radius used to search counterparts. North is to the top, and east is to the left.
© 2004. The American Astronomical Society. All rights reserved. Printed in U.S.A.