Ground-based detection of water in Comet Halley

Details Ground-based detection of water in Comet Halley Ground-based detection of water in Comet Halley

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.250c..99k&link_type=abstract

In ESA, Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 3: Posters p 99-101 (SEE N87-26714

Astronomy and Astrophysics

Astronomy

Emission Spectra, Halley'S Comet, Infrared Spectroscopy, Water Vapor, Cometary Atmospheres, Infrared Astronomy, Space Observations (From Earth)

Scientific paper

The authors report a detection of gaseous water in the coma of comet Halley. Emission was observed in the ν1+ν3 band at 1.4 μm and in the ν2+ν3 band at 1.9 μm. Based on the ν1+ν3 band intensity, the mass loss rate was 2×1029molecules per second (with an uncertainty of a factor of 2) on 29 October 1985, marginally consistent with other detections. The method is applicable to observations of H2O in other fast-moving comets.

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