The Solar Wind in the Outer Heliosphere and Heliosheath
The solar wind environment has a large influence on the transport of cosmic rays. This chapter discusses the observations of the solar wind plasma and magnetic field in the outer heliosphere and the heliosheath. In the supersonic solar wind, interaction regions with large magnetic fields form bar...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Springer Science + Business Media B.V.
2011
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| Online Access: | http://hdl.handle.net/1721.1/66575 |
| _version_ | 1826189664393887744 |
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| author | Richardson, John D. Burlaga, L. F. |
| author2 | MIT Kavli Institute for Astrophysics and Space Research |
| author_facet | MIT Kavli Institute for Astrophysics and Space Research Richardson, John D. Burlaga, L. F. |
| author_sort | Richardson, John D. |
| collection | MIT |
| description | The solar wind environment has a large influence on the transport of cosmic rays.
This chapter discusses the observations of the solar wind plasma and magnetic field in the
outer heliosphere and the heliosheath. In the supersonic solar wind, interaction regions with
large magnetic fields form barriers to cosmic ray transport. This effect, the “CR-B” relationship,
has been quantified and is shown to be valid everywhere inside the termination shock
(TS). In the heliosheath, this relationship breaks down, perhaps because of a change in the
nature of the turbulence. Turbulence is compressive in the heliosheath, whereas it was noncompressive
in the solar wind. The plasma pressure in the outer heliosphere is dominated
by the pickup ions which gain most of the flow energy at the TS. The heliosheath plasma
and magnetic field are highly variable on scales as small as ten minutes. The plasma flow
turns away from the nose roughly as predicted, but the radial speeds at Voyager 1 are much
less than those at Voyager 2, which is not understood. Despite predictions to the contrary,
magnetic reconnection is not an important process in the inner heliosheath with only one
observed occurrence to date. |
| first_indexed | 2024-09-23T08:19:11Z |
| format | Article |
| id | mit-1721.1/66575 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:19:11Z |
| publishDate | 2011 |
| publisher | Springer Science + Business Media B.V. |
| record_format | dspace |
| spelling | mit-1721.1/665752022-09-23T12:17:28Z The Solar Wind in the Outer Heliosphere and Heliosheath Richardson, John D. Burlaga, L. F. MIT Kavli Institute for Astrophysics and Space Research Richardson, John D. Richardson, John D. The solar wind environment has a large influence on the transport of cosmic rays. This chapter discusses the observations of the solar wind plasma and magnetic field in the outer heliosphere and the heliosheath. In the supersonic solar wind, interaction regions with large magnetic fields form barriers to cosmic ray transport. This effect, the “CR-B” relationship, has been quantified and is shown to be valid everywhere inside the termination shock (TS). In the heliosheath, this relationship breaks down, perhaps because of a change in the nature of the turbulence. Turbulence is compressive in the heliosheath, whereas it was noncompressive in the solar wind. The plasma pressure in the outer heliosphere is dominated by the pickup ions which gain most of the flow energy at the TS. The heliosheath plasma and magnetic field are highly variable on scales as small as ten minutes. The plasma flow turns away from the nose roughly as predicted, but the radial speeds at Voyager 1 are much less than those at Voyager 2, which is not understood. Despite predictions to the contrary, magnetic reconnection is not an important process in the inner heliosheath with only one observed occurrence to date. United States. National Aeronautics and Space Administration (NASA contract 959203) 2011-10-25T14:55:23Z 2011-10-25T14:55:23Z 2011-09 Article http://purl.org/eprint/type/JournalArticle 0038-6308 http://hdl.handle.net/1721.1/66575 Richardson, J.D. and L.F. Burlaga. "The Solar Wind in the Outer Heliosphere and Heliosheath." Space Science Reviews,Space Sci Rev (June 2013) 176:1-4, pp.217–235. en_US http://dx.doi.org/10.1007/s11214-011-9825-5 Space Science Reviews Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Springer Science + Business Media B.V. Richardson |
| spellingShingle | Richardson, John D. Burlaga, L. F. The Solar Wind in the Outer Heliosphere and Heliosheath |
| title | The Solar Wind in the Outer Heliosphere and Heliosheath |
| title_full | The Solar Wind in the Outer Heliosphere and Heliosheath |
| title_fullStr | The Solar Wind in the Outer Heliosphere and Heliosheath |
| title_full_unstemmed | The Solar Wind in the Outer Heliosphere and Heliosheath |
| title_short | The Solar Wind in the Outer Heliosphere and Heliosheath |
| title_sort | solar wind in the outer heliosphere and heliosheath |
| url | http://hdl.handle.net/1721.1/66575 |
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