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Observation of mass loading in the Io plasma torus

Brown, Michael E. (1994) Observation of mass loading in the Io plasma torus. Geophysical Research Letters, 21 (10). pp. 847-850. ISSN 0094-8276.

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Ground‐based high‐resolution spectra of emission from the Io plasma torus obtained during 53 nights of observation over a seven month period are used to measure the torus rotation speed and discern regions of the torus that are slowed by mass loading of newly ionized materials. The amount of torus slowing implies that between 2000 and 3000 kg sec^(−1) are being ionized by the torus. The slowing is spread azimuthally throughout the orbit of Io, suggesting that neutral materials emanating from Io are distributed around Jupiter much more uniformly than currently believed.

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Additional Information:© 1994 American Geophysical Union. Received 17 September 1993; accepted 8 February 1994. Many people have contributed in this research, in particular Drs. A. Dessler, M. McGrath, I. de Pater, N. Schneider, W. Smyth, and H. Spinrad. The support of the Lick Observatory staff and Tony Misch especially and the comments of Elisabeth Moyer were invaluable. This research was supported by a Calspace grant and a NASA Graduate Research Fellowship.
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Official Citation:Brown, M. E. (1994), Observation of mass loading in the Io plasma torus, Geophys. Res. Lett., 21(10), 847–850, doi:10.1029/94GL00564.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:34613
Deposited By: Ruth Sustaita
Deposited On:02 Oct 2012 17:05
Last Modified:27 Dec 2012 02:47

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