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Search for H2COH+ and H2(13)CO in dense interstellar molecular cloudsWe have searched for the 2 mm transitions of H2COH+ (2(02) - 1(01)) and H2(13)CO (2(02) - 1(01), 2(12) - 1(11), and 2(11) - 1(10)) toward the dense interstellar molecular clouds Orion A, TMC-1 and L134N using the FCRAO 14m telescope. None of the transitions have been detected except the H2(13)CO transitions toward Orion-KL. We set upper limits for the abundances of the protonated formaldehyde ion (H2COH+), which are close to the abundances expected from ion-molecule chemistry.
Document ID
20040089692
Acquisition Source
Headquarters
Document Type
Reprint (Version printed in journal)
Authors
Minh, Y. C.
(Korea Astronomy Observatory Hwaam, Yusong)
Irvine, W. M.
McGonagle, D.
Date Acquired
August 21, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Ch'onmun Hakhoe chi. The journal of the Korean Astronomical Society. Han'guk Ch'onmun Hakhoe
Volume: 26
ISSN: 0253-3065
Subject Category
Exobiology
Funding Number(s)
CONTRACT_GRANT: NAGW-436
CONTRACT_GRANT: AST91-15721
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Exobiology
Non-NASA Center

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