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Record 86 of 122
The determination of electron abundances in interstellar clouds
External Online Source: doi:10.1086/157569
Author and Affiliation:
Wootten, A.(Texas Univ., Austin, TX, United States)
Snell, R.(Texas, University, Austin, Tex., United States)
Glassgold, A. E.(New York University, New York, N.Y., United States)
Abstract: An independent method is proposed for the determination of electron abundances in dense clouds based upon the abundance ratio of HCO(+) and CO. The method is derived from a simple application of gas phase ion molecule interstellar chemistry. It is noted that unlike the fractionation of deuterated molecules, it applies to warm as well as to cool clouds. The method is illustrated with the results of the recent abundance survey of Wooten et al. (1978). Finally, it is shown that in cases where deuterium enhancement is measured, an upper limit can be obtained for the cosmic ray ionization rate.
Publication Date: Dec 15, 1979
Document ID:
19800036119
(Acquired Nov 30, 1995)
Accession Number: 80A20289
Subject Category: ASTROPHYSICS
Document Type: Journal Article
Publication Information: Astrophysical Journal; p. vol. 234
Publisher Information: United States
Contract/Grant/Task Num: NSF AST-75-22903; NGR-33-016-196
Financial Sponsor: NASA; United States
Organization Source: Texas Univ.; Austin, TX, United States
New York Univ.; New York, NY, United States
Description: 5p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ABUNDANCE; ELECTRON DENSITY (CONCENTRATION); INTERSTELLAR MATTER; MOLECULAR EXCITATION; CARBON MONOXIDE; COSMIC RAYS; INTERSTELLAR CHEMISTRY; ION PRODUCTION RATES; REACTION KINETICS
Imprint And Other Notes: Astrophysical Journal, Part 1, vol. 234, Dec. 15, 1979, p. 876-880.
Miscellaneous Notes: Dec. 15, 1979, p. 876-880
Availability Source: Other Sources
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