Encounter of the Ulysses spacecraft with the ion tail of comet McNaught
Document Type
Article
Publication Date
1-1-2007
Abstract
Comet McNaught was the brightest comet observed from Earth in the last 40 years. For a period of five days in early 2007 February, four instruments on the Ulysses spacecraft directly measured cometary ions and key properties of the interaction of the comet's ion tail with the high-speed solar wind from the polar regions of the Sun. Because of the record-breaking duration of the encounter, the data are unusually comprehensive. O3+ ions were detected for the first time in a comet tail, coexisting with singly charged molecular ions with masses in the range 28-35 amu. The presence of magnetic turbulence and of ions with energies up to ∼200 keV indicate that at a distance of ∼1.6 AU from the comet nucleus, the ion tail of comet McNaught had not yet reached equilibrium with the surrounding solar wind. © 2007. The American Astronomical Society. All rights reserved.
Identifier
35348814240 (Scopus)
Publication Title
Astrophysical Journal
External Full Text Location
https://doi.org/10.1086/521019
e-ISSN
15384357
ISSN
0004637X
First Page
1262
Last Page
1266
Issue
2 I
Volume
667
Recommended Citation
Neugebauer, M.; Gloeckler, G.; Gosling, J. T.; Rees, A.; Skoug, R.; Goldstein, B. E.; Armstrong, T. P.; Combi, M. R.; Mäkinen, T.; McComas, D. J.; Von Steiger, R.; Zurbuchen, T. H.; Smith, E. J.; Geiss, J.; and Lanzerotti, L. J., "Encounter of the Ulysses spacecraft with the ion tail of comet McNaught" (2007). Faculty Publications. 13768.
https://digitalcommons.njit.edu/fac_pubs/13768
