Cosmic Ray Anisotropy Near a CME-Driven Shock

Details Cosmic Ray Anisotropy Near a CME-Driven Shock Cosmic Ray Anisotropy Near a CME-Driven Shock

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsh32b..07l&link_type=abstract

American Geophysical Union, Spring Meeting 2002, abstract #SH32B-07

Physics

7843 Numerical Simulation Studies, 2104 Cosmic Rays, 2139 Interplanetary Shocks

Scientific paper

As a CME-driven shock approaches and passes earth, neutron monitors and muon detectors observe enhancements of the cosmic ray anisotropy. Precursor anisotropies are caused by the interaction of the cosmic rays with the shock and provide useful information for space weather forecasting with a lead time of several hours. We numerically simulate the distribution of particles in position and pitch angle, and predict how the cosmic ray pitch angle distribution near the shock depends on particle energy and shock geometry. This work was supported by NSF grant ATM-0000315 and the Thailand Research Fund.

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