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Ground-based observation of Comet Halley (1986)

Roesler, F. L. ; Scherb, F.

In: CASI

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Publication Date: 2006-02-14

Description: 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.

Keywords: ASTRONOMY

Type: NASA, Washington Reports of Planetary Astronomy, 1985; p 120-121

Format: text

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