Image Details
Caption: Fig. 9.
CH vs. K I (left) and CH vs. Na I (right). Circles denote LMC sight lines; triangles denote SMC sight lines; all other symbols are for Galactic sight lines (see Fig. 8). The solid lines show weighted and unweighted fits to the Galactic data (with ﹩\mathrm{slopes}\,\sim 1.0﹩; omitting "discrepant" sight lines).
© 2006. The American Astronomical Society. All rights reserved. Printed in U.S.A.