The role of merged interaction regions and drafts in the heliospheric modulation of cosmic rays beyond 20 AU - A computer simulation

view Abstract Citations (59) References (66) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Role of Merged Interaction Regions and Drifts in the Heliospheric Modulation of Cosmic Rays beyond 20 AU: A Computer Simulation Potgieter, M. S. ; Le Roux, J. A. ; Burlaga, L. F. ; McDonald, F. B. Abstract Voyager 2 magnetic field measurements are used to simulate merged interaction and rarefaction regions (MIRs and RRs) for 1985-1989 via numerical solutions of the time-dependent, axially symmetric transport equation of cosmic rays in the heliosphere, together with the concurrent use of the wavy neutral sheet as a time-dependent drift parameter. This drift approach was found to be more successful, because it was able to reproduce the intensity levels, the factor modulation, and latitudinal gradients for 1 GeV protons at 23 AU. Publication: The Astrophysical Journal Pub Date: February 1993 DOI: 10.1086/172247 Bibcode: 1993ApJ...403..760P Keywords: Computerized Simulation; Cosmic Rays; Heliosphere; Transport Properties; Astronomical Models; Computational Astrophysics; Diffusion Coefficient; Time Dependence; Two Dimensional Models; Space Radiation; ACCELERATION OF PARTICLES; ISM: COSMIC RAYS; SUN: ACTIVITY full text sources ADS |