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Studies of H I and D I in the local interstellar mediumHigh-dispersion IUE spectra are presented of the hydrogen Ly-alpha chromospheric emission line of two nearby late-type stars, Capella and Lambda And. Both interstellar H I and D I Ly-alpha absorption can be seen against the chromospheric line, and the density, velocity dispersion, and bulk velocity of the gas in those lines of sight are derived. Limits are placed on the D/H ratio. The results are consistent with the current picture of the local interstellar medium.
Document ID
19900049594
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/168832
Authors
Murthy, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Henry, R. C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Moos, H. W. (Johns Hopkins University Baltimore, MD, United States)
Vidal-Madjar, A. (CNR Institut d'Astrophysique, Paris, France)
Linsky, J. L. (Joint Institute for Laboratory Astrophysics Boulder, CO, United States)
Date Acquired
August 14, 2013
Publication Date
June 10, 1990
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 356
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
90A36649
Distribution Limits
Public
Copyright
Other

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