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Deuterium Abundance in the Local Interstellar MediumThe present situation of deuterium abundance evaluation in interstellar space is discussed, and it is shown that it should be or = .00001 by studying in more detail lambda the Sco line of sight and by observing two NaI interstellar components toward that star, it can be shown that the D/H evaluation made toward lambda Sco is in fact related to the local interstellar medium (less than 10 pc from the Sun). Because this evaluation is also or = .00001 it is in striking contrast with the one made toward alpha Aur (D/H or = .000018 confirming the fact that the deuterium abundance in the local interstellar medium varies by at least a factor of two over few parsecs.
Document ID
19850007243
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ferlet, R.
(Institut d'Astrophysique Paris, France)
Gry, C.
(IUE Observatory Madrid, United States)
Vidal-Madjar, A.
(Institut d'Astrophysique Paris, France)
Date Acquired
August 12, 2013
Publication Date
November 1, 1984
Publication Information
Publication: NASA. Goddard Space Flight Center Local Interstellar Medium, No. 81
Subject Category
Astrophysics
Accession Number
85N15552
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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