Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997dps....29.3707o&link_type=abstract
American Astronomical Society, DPS meeting #29, #37.07; Bulletin of the American Astronomical Society, Vol. 29, p.1047
Astronomy and Astrophysics
Astronomy
Scientific paper
In September, 1985, the International Cometary Explorer spacecraft, passed through the tail of comet Giacobini-Zinner 7800 km from the nucleus. The relative velocity was 21 km/s. Instruments aboard the spacecraft made magnetic field, energetic particle and ion composition measurements. The composition measurement showed the presence of water group and CO+ ions as well an appreciable but localized flux of ions with M/Q = 24 +/- 1. These observed ions were tentatively identified by Coplan et al. (J. Geophys. Res. 92, 39, 1987) as either C2+ or Na+. In this paper we reinterpret these measurements in light of the recent spectroscopic observations of sodium atoms in tail of the comet Hale-Bopp.
Coplan Michael A.
Ogilvie Keith. W.
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