Physics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm...p51a13m&link_type=abstract
American Geophysical Union, Spring Meeting 2001, abstract #P51A-13
Physics
5719 Interactions With Particles And Fields, 5737 Magnetospheres (2756), 5757 Remote Sensing, 5780 Tori And Exospheres, 6220 Jupiter
Scientific paper
During the flyby of Jupiter on its cruise to Saturn, the Cassini/Huygens spacecraft collected unique data with a broad assortment of instruments. The Magnetospheric Imaging Instrument (MIMI) measured in-situ energetic ions and electrons, performed charge and mass analysis of both interstellar pickup ions and Jovian source ions, and remotely imaged the Jovian magnetosphere in energetic neutral atom (ENA) emissions. The ENA images were measured with the Ion and Neutral Camera (INCA) [Mitchell et al., 1998]. INCA images ENA in the velocity range from about 1200 km/s to 8000 km/s, which for hydrogen corresponds to about 8 keV to about 350 keV. Jupiter, as expected based on Voyager measurements [Kirsch et al., 1981; Cheng 1986], is a weak ENA source. The expected INCA response was modeled by Mauk et al., 1998. The INCA sensor was run in a mode for which images were obtained only below about 80 keV/nucleon. The images obtained are quite close to the predictions of Mauk et al., both in conformation and in intensity. They are consistent with the source strength of the Jovian magnetosphere remaining essentially constant between 1979 and 2001. Rough inferences as to the composition of the ENA show that there is a mix of hydrogen as well as heavier atoms, most probably oxygen and sulfur. These first-ever images of Jupiter's magnetosphere provide a taste of what we can look forward to at Saturn, although the distance of this flyby (140 Rj) allows only hints of the magnetospheric structure to be resolved with this instrument, which is designed for a closer vantage point. Mitchell, D. G., A. F. Cheng, K. C. Hsieh, S. M. Krimigis, E. P. Keath, S. E. Jaskulek, B. H. Mauk, R. W. McEntire, E. C. Roelof, C. E. Schlemm, B. E. Tossman, and D. J. Williams, The ion neutral camera for the Cassini Mission to Saturn and Titan, Measurement Techniques in Space Plasmas, Fields, R. F. Pfaff, J. E. Borovsky, and D. T. Young, ed., Geophysical Monograph 103, p281, AGU, 1998. Kirsch, E., S. M. Krimigis, J. Johl, and E. Keath, Upper limits for X-ray and energetic neutral particle emission from Jupiter: Voyager 1 results, Geophys. Res. Lett., 8, 169, 1981. Mauk, B.H., S.M. Krimigis, D.G. Mitchell, and E.C. Roelof, Energetic neutral atom imaging of Jupiter's magnetosphere using the Cassini MIMI instrument, Adv. Space Res., 21, 1483, 1998.
Krimigis Stamatios M.
Mauk Barry H.
Mitchell Donald G.
No associations
LandOfFree
Imaging the Jovian Magnetosphere in Energetic Neutral Atoms with the Cassini/Huygens Magnetospheric Imaging Instrument Ion and Neutral Camera does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Imaging the Jovian Magnetosphere in Energetic Neutral Atoms with the Cassini/Huygens Magnetospheric Imaging Instrument Ion and Neutral Camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Imaging the Jovian Magnetosphere in Energetic Neutral Atoms with the Cassini/Huygens Magnetospheric Imaging Instrument Ion and Neutral Camera will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1272441