Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....62..143k&link_type=abstract
Astronomy and Astrophysics, vol. 62, no. 1-2, Jan. 1978, p. 143-147.
Astronomy and Astrophysics
Astrophysics
10
Comets, Hydrogen, Hydroxyl Emission, Gas Dissociation, Lyman Alpha Radiation, Oao 2, Resonance Scattering, Ultraviolet Spectrophotometers
Scientific paper
Comet Tago-Sato-Kosaka (1969 IX) was observed with the ultraviolet photometers on OAO 2 from January 16.41 to January 29.89, 1970, while its heliocentric distance increased from 0.78 to 1.03 AU. The production rates of hydrogen and hydroxyl are derived from Lyman-alpha (1216 A) and OH (0-0) band (3090 A) emission. The variations of the hydrogen and hydroxyl production ran parallel to one another, while their ratio was about 3:1. These results are consistent with the assumption that vaporization of water ice controlled the production rate of gas during this interval. The hydrogen production rates of four nonperiodic comets are compared.
Lillie Chuck F.
Uwe Keller Horst
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