NDLI: Mercury's surface magnetic field determined from proton-reflection magnetometry

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Mercury's surface magnetic field determined from proton-reflection magnetometry

Content Provider	NASA Technical Reports Server (NTRS)
Author	Slavin, James A. Solomon, Sean C. Johnson, Catherine L. Anderson, Brian J. Lillis, Robert J. Korth, Haje Zurbuchen, Thomas H. Zuber, Maria T. Raines, Jim M. Winslow, Reka M. Gershman, Daniel J.
Copyright Year	2014
Description	Solar wind protons observed by the MESSENGER spacecraft in orbit about Mercury exhibit signatures of precipitation loss to Mercury's surface. We apply proton-reflection magnetometry to sense Mercury's surface magnetic field intensity in the planet's northern and southern hemispheres. The results are consistent with a dipole field offset to the north and show that the technique may be used to resolve regional-scale fields at the surface. The proton loss cones indicate persistent ion precipitation to the surface in the northern magnetospheric cusp region and in the southern hemisphere at low nightside latitudes. The latter observation implies that most of the surface in Mercury's southern hemisphere is continuously bombarded by plasma, in contrast with the premise that the global magnetic field largely protects the planetary surface from the solar wind.
File Size	1939178
Page Count	8
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20150007921
Archival Resource Key	ark:/13960/t40s4s414
Language	English
Publisher Date	2014-07-03
Access Restriction	Open
Subject Keyword	Loss Cone Mercury Surface Magnetic Field Protons Signal To Noise Ratios Plasmas Physics Mercury Planet Magnetosheath Messenger Spacecraft Magnetic Fields Solar Wind Mercury Surface Planetary Magnetospheres Magnetic Measurement 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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