On the interstellar abundance of H2O/+/

Details On the interstellar abundance of H2O/+/ On the interstellar abundance of H2O/+/

Apr 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978obs....98...44w&link_type=abstract

The Observatory, vol. 98, Apr. 1978, p. 44-46. Research supported by the Science Research Council.

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1

Abundance, Astronomical Spectroscopy, Interstellar Matter, Water Vapor, Comet Tails, Emission Spectra, Laser Applications, Molecular Ions, Photoionization, Wavelengths

Scientific paper

An unsuccessful attempt to detect H2O(+) toward four early-type stars is reported. The attempt involved a search for the H2O(+) spectral feature at wavelength 6199 A, which has been noted in Comet Kohoutek. Based on the observations toward the four stars, an upper space density value of 7 times 10 to the minus 10th power per cu cm is set for the H2O(+). Thus it is concluded that the presence of H2O(+) in cometary spectra does not imply an enhanced interstellar abundance.

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