A search for interstellar H3O(+)

Details A search for interstellar H3O(+) A search for interstellar H3O(+)

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...166l..15w&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 166, no. 1-2, Sept. 1986, p. L15-L18.

Astronomy and Astrophysics

Astrophysics

34

Abundance, Interstellar Gas, Molecular Ions, Halley'S Comet, Line Spectra, Positive Ions, Water

Scientific paper

The P(2,1) line of H3O+, a key species in ion-molecule chemistry, has been sought in the interstellar medium and in Halley's Comet. In OMC1 and Sgr B2, a line was detected which may possibly be attributed to H3O+. Verification of this identification must be accomplished through observation of the P(3,2) line at 364 GHz, or detection of isotopic variants. If the detected line arises from H3O+, it could be possible to deduce a fractional abundance X(H3O+) in OMC1 and in Sgr B2 of ≡10-9 and a production rate in Comet Halley of Q(H3O+) < 1028s-1. These results would place H3O+ among the more abundant molecular ions in the interstellar gas in agreement with theoretical predictions.

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