Ground-based observation of Comet Halley

Details Ground-based observation of Comet Halley Ground-based observation of Comet Halley

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986plas.rept..120s&link_type=abstract

In NASA, Washington Reports of Planetary Astronomy, 1985 p 120-121 (SEE N87-12407 03-89)

Astronomy and Astrophysics

Astronomy

Halley'S Comet, Plasma Interactions, Solar Planetary Interactions, Spectral Emission, Fabry-Perot Interferometers, Hydrogen Compounds, Particle Production

Scientific paper

Approximately five hundred Fabry-Perot scans of H2O+, H alpha, and (OI) emissions from comets Halley, Hartley-Good, and Thiele were obtained at Kitt Peak in November, December and January. The analysis of the data is in a very early stage, but preliminary results were obtained on the production rate Q(H) of hydrogen, Q(D) of metastable oxygen, and Q(H2O) of water. The rate Q(H) varied with heliocentric distance R as R to the power -3.5 + or - 0.5. The rate Q(D) varied as R to the power -4.8 + or - 0.1. The ratio of Q(H2O) to Q(D) was 15 + or - 5.

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