NDLI: Messenger observations of extreme loading and unloading of mercury's magnetic tail (Document No: 20100031250)

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Messenger observations of extreme loading and unloading of mercury's magnetic tail (Document No: 20100031250)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Slavin, James A. Gold, Robert E. Baker, Daniel N. Gloeckler, George McNutt Jr., Ralph L. Krimigis, Stamatios M. Zurbuchen, Thomas H. Boardsen, Scott A. Schriver, David Benna, Mehdi Raines, Jim M. Solomon, Sean C. Travnicek, Pavel M. Ho, George C. Nittler, Larry R. Anderson, Brian J. Korth, Haje Sarantos Sr., Menelaos Starr, Richard D.
Copyright Year	2010
Description	During MESSENGER's third flyby of Mercury, the magnetic field in the planet's magnetotail increased by factors of 2 to 3.5 over intervals of 2 to 3 min. Magnetospheric substorms at Earth are powered by similar tail loading, but the amplitude is approx.10 times less and typical durations are approx.1 hour. The extreme tail loading observed at Mercury implies that the relative intensity of sub storms must be much larger than at Earth. The correspondence between the duration of tail field enhancements and the characteristic time for the Dungey cycle, which describes plasma circulation through Mercury's magnetosphere. suggests that such circulation determines substorm timescale. A key aspect of tail unloading during terrestrial substorms is the acceleration of energetic charged particles, but no acceleration signatures were seen during the MESSENGER flyby.
File Size	1616131
Page Count	8
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20100031250
Archival Resource Key	ark:/13960/t5t77cz4q
Language	English
Publisher Date	2010-07-15
Access Restriction	Open
Subject Keyword	Astronomy Augmentation Planets Plasmas Physics Mercury Planet Unloading Flyby Missions Particle Acceleration Messenger Spacecraft Signatures Charged Particles Magnetic Storms Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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