Image Details
Caption: Fig. 6.
Plot of (a) X‐ray luminosity and (b) plasma temperature and the mean abundance of DoAr 21. Circles and triangles represent the data of ACIS (observation C1) and of GIS (observations A1–A3). Errors indicate the 90% confidence limits.
© 2002. The American Astronomical Society. All rights reserved. Printed in U.S.A.