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High-Resolution Optical Observations of Interstellar Absorption Lines

Published online by Cambridge University Press:  30 March 2016

Daniel E. Welty
Daniel E. Welty*
Affiliation:
University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637

Abstract

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We briefly note several current topics concerning the properties of interstellar clouds for which high-resolution optical spectra play a significant role: (1) the recognition and characterization of small-scale (sub-pc) structure in both atomic and molecular gas; (2) the discovery of variations in the 7Li/6Li isotopic ratio in the nearby Galactic ISM; (3) the determination of atomic and molecular abundances and physical conditions for heavily reddened (“translucent”) Galactic sightlines; and (4) studies of interstellar clouds in the LMC and SMC.

Type
I. Joint Discussions
Information
Highlights of Astronomy , Volume 13 , 2005 , pp. 808 - 810
Copyright
Copyright © Astronomical Society of Pacific 2005

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