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Detailed Reference Information |
Richardson, J.D., McDonald, F.B., Stone, E.C., Wang, C. and Ashmall, J. (2005). Relation between the solar wind dynamic pressure at Voyager 2 and the energetic particle events at Voyager 1. Journal of Geophysical Research 110: doi: 10.1029/2005JA011156. issn: 0148-0227. |
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Starting in 2001, Voyager 1 observed three events characterized by enhanced fluxes of energetic particles. These events suggest that Voyager 1 made a close approach to, or a crossing of, the termination shock. Although the plasma experiment on Voyager 1 is not providing useful data, plasma data from Voyager 2 may shed light on the plasma conditions at Voyager 1. Before the first particle event, Voyagers 1 and 2 see similar particle signatures. Voyager 2 pressure and energetic particle flux profiles have similar structure. The merged interaction regions (MIRs) observed at Voyager 2 have counterparts in the Voyager 1 data. We propagate solar wind data from Voyager 2 to Voyager 1 and show that at the predicted MIR arrival times, there is always a response in the Voyager 1 particle data. These effects vary, from an increase in particle flux to a rapid turnoff of the particle event. We discuss the observed energetic particle effects and how the MIRs produce them. |
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Abstract |
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Keywords
Interplanetary Physics, Solar wind plasma, Interplanetary Physics, Interplanetary shocks, Interplanetary Physics, Energetic particles, Interplanetary Physics, Heliopause and solar wind termination, termination shock, MIRs, solar wind |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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