A search for interstellar H3/+/

Details A search for interstellar H3/+/ A search for interstellar H3/+/

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981rspta.303..543o&link_type=abstract

(Royal Society, Discussion on Molecules in Interstellar Space, London, England, May 20, 21, 1981.) Royal Society (London), Philo

Astronomy and Astrophysics

Astronomy

62

Astronomical Spectroscopy, Hydrogen Ions, Interstellar Gas, Molecular Ions, Positive Ions, Fourier Transformation, High Resolution, Infrared Astronomy

Scientific paper

In connection with the great stability of H3(+), the reaction H2+H2(+) yields H3(+)+H is exothermic, and H3(+) rather than H2(+) is the dominant hydrogenic molecular ion in a hydrogen discharge in the laboratory and in molecular clouds in space. An investigation was conducted with the objective to detect H3(+) in interstellar space. A study of the H3(+) spectrum in the laboratory is discussed, taking into account the observed frequencies of the nu 2 band of H3(+). Possibilities for observing H3(+) under interstellar conditions were investigated. A search involving observations of seven infrared sources was performed, taking into account the results of the investigation of the observation possibilities. The negative results of the search set an upper limit for the infrared flux to be considered.

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