Abstract
We present a possible explanation for the transient increase in the galactic cosmic ray flux observed by Voyager 1 (V1) beyond the heliopause, in 2013 March. We suggest that this disturbance may be caused by a propagating disturbance in the interstellar magnetic field, of heliospheric origin. A model in which a magnetic disturbance, propagating outward from the heliosphere into the very-local interstellar plasma, affects the galactic cosmic rays is presented. We also discuss the possibility that this event is related to the plasma-wave event observed some 25 days later by the PWS experiment on V1.
Original language | English (US) |
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Article number | L4 |
Journal | Astrophysical Journal Letters |
Volume | 794 |
Issue number | 1 |
DOIs | |
State | Published - Oct 10 2014 |
Keywords
- Sun: heliosphere
- cosmic rays
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science