Image Details
 
                    Caption: Fig. 7.
Histogram of the bulk motion of the H II regions relative to the galactic H I disk defined by Hα − H I. The data for 13 H II regions with type I or II velocity feature including the samples observed by Tomita et al. (1993) are presented.
© 1998. The American Astronomical Society. All rights reserved. Printed in U.S.A.