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Constraints on Cold H2 Clouds from Gravitational Microlensing Searches
Rafikov & Draine 2001 The Astrophysical Journal 547 207.
Caption: Fig. 1.
Geometry of lensing. S is the source, the center of the lens is at L, and O is the observer.
© 2001. The American Astronomical Society. All rights reserved. Printed in U.S.A.