O/1D/ and H2O/+/ in comet Bennett 1970. II

Details O/1D/ and H2O/+/ in comet Bennett 1970. II O/1D/ and H2O/+/ in comet Bennett 1970. II

Feb 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...228..330d&link_type=abstract

Astrophysical Journal, Part 1, vol. 228, Feb. 15, 1979, p. 330-337.

Astronomy and Astrophysics

Astrophysics

25

Brightness, Comets, Molecular Ions, Oxygen Atoms, Water, Carbon Dioxide, Comet Tails, Particle Motion, Particle Production, Plasma-Particle Interactions, Solar Wind, Comet Tails, Bennett, Comet, Comae, Brightness, Spectrum, Airglow, Ions, Solar Wind, Interactions, Molecules, Water, Carbon Dioxide, Photons, Plasmas, Coupling, Acceleration, Velocity

Scientific paper

The spatial distribution of O(1D) in comet Bennett on April 18 implies the existence of an average scale length of about 10,000 km for the source of one or several parents, and an average scale length also of about 10,000 km for their destruction. The spatial distribution of H2O(+) has also been studied sunward and tailward for the same comet and the same date. Two spectra taken 20 minutes apart show recognizable wave patterns moving tailward with a velocity of 17 km/sec. The interaction of the H2O(+) ions with the solar wind gives clues to the onset of the plasma tail. A characteristic time of 800 sec seems to be associated with the instabilities seen at the onset of the tail.

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