Abstract We analyse the possibility that the shock termination of the solar wind should occur at a heliocentric distance of 50 a.u. It is concluded that this is possible if the density of the interstellar medium near the Sun is of the order of 0.5 cm−3, or the pressure of low energy cosmic rays (less than about 300 MeV/nucleon) is of the order of 6×10−12 dyn cm−2, or the interstellar magnetic field strength is of the order of 8 microgauss, or some suitable combination of these. Such conditions would not normally be expected to prevail in the interstellar medium in the neighbourhood of the Sun. However, the possibility that a supernova explosion occurred nearby some 105–106 years ago must be taken seriously and in such circumstances the required conditions may be relatively easily achieved.
The solar wind shock termination
Advances in Space Research ; 6 , 2 ; 27-32
01.01.1986
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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