Image Details
Caption: Fig. 3.
Comparison of the XMM RGS1 (solid histogram) and Chandra HRC‐S/LETG (dotted histogram) line‐spread functions for a ﹩W_{\lambda }=10﹩ mÅ unresolved absorption line at 21.602 Å.
© 2006. The American Astronomical Society. All rights reserved. Printed in U.S.A.