Image Details
Caption: Fig. 7.
Spatial distributions of the He I and He II 4686 Å nebular emission‐line intensities (left panels) in I Zw 18 and (right panels) in SBS 0335−052. The error bars are 1 σ deviations.
© 1999. The American Astronomical Society. All rights reserved. Printed in U.S.A.