Modeling the entry and trapping of solar energetic particles in the magnetosphere during the November 24-25, 2001 storm

Details Modeling the entry and trapping of solar energetic particles in the magnetosphere during the November 24-25, 2001 storm Modeling the entry and trapping of solar energetic particles in the magnetosphere during the November 24-25, 2001 storm

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009jgra..11404210r&link_type=abstract

Journal of Geophysical Research, Volume 114, Issue A4, CiteID A04210

Physics

2

Magnetospheric Physics: Energetic Particles: Trapped, Magnetospheric Physics: Magnetic Storms And Substorms (7954), Magnetospheric Physics: Radiation Belts, Magnetospheric Physics: Energetic Particles: Precipitating, Magnetospheric Physics: Numerical Modeling

Scientific paper

We have modeled the entry of solar energetic particles (SEPs) into the magnetosphere during the November 24-25, 2001 magnetic storm and the trapping of particles in the inner magnetosphere. The study used the technique of following many test particles, protons with energies greater than about 100 keV, in the electric and magnetic fields from a global magnetohydrodynamic (MHD) simulation of the magnetosphere during this storm. SEP protons formed a quasi-trapped and trapped population near and within geosynchronous orbit. Preliminary data comparisons show that the simulation does a reasonably good job of predicting the differential flux measured by geosynchronous spacecraft. Particle trapping took place mainly as a result of particles becoming non-adiabatic and crossing onto closed field lines. Particle flux in the inner magnetosphere increased dramatically as an interplanetary shock impacted and compressed the magnetosphere near 0600 UT, but long term trapping (hours) did not become widespread until about an hour later, during a further compression of the magnetosphere. Trapped and quasi-trapped particles were lost during the simulation by motion through the magnetopause and by precipitation, primarily the former. This caused the particle population near and within geosynchronous orbit to gradually decrease later on during the latter part of the interval.

Affiliated with

Also associated with

No associations

Rating

Modeling the entry and trapping of solar energetic particles in the magnetosphere during the November 24-25, 2001 storm 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 Modeling the entry and trapping of solar energetic particles in the magnetosphere during the November 24-25, 2001 storm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modeling the entry and trapping of solar energetic particles in the magnetosphere during the November 24-25, 2001 storm will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1523228