Observation of shocks associated with CMEs in 2007
The interaction of CMEs with the solar wind can lead to the formation of interplanetary shocks. Ions accelerated at these shocks contribute to the solar energetic protons observed in the vicinity of the Earth. Recently a joint analysis of Venus Express (VEX) and STEREO data by Russell et al. (20...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2014-03-01
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| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/32/223/2014/angeo-32-223-2014.pdf |
| _version_ | 1818253320035237888 |
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| author | H. Aryan M. A. Balikhin A. Taktakishvili T. L. Zhang |
| author_facet | H. Aryan M. A. Balikhin A. Taktakishvili T. L. Zhang |
| author_sort | H. Aryan |
| collection | DOAJ |
| description | The interaction of CMEs with the solar wind can lead to the formation of
interplanetary shocks. Ions accelerated at these shocks contribute to the
solar energetic protons observed in the vicinity of the Earth. Recently a
joint analysis of Venus Express (VEX) and STEREO data by Russell et
al. (2009) have shown that the formation of strong shocks associated with
Co-rotating Interaction Regions (CIRs) takes place between the orbits of
Venus and the Earth as a result of coalescence of weaker shocks formed
earlier. The present study uses VEX and Advanced Composition Explorer (ACE)
data in order to analyse shocks associated with CMEs that erupted on 29 and
30 July 2007 during the solar wind conjunction period between Venus and the
Earth. For these particular cases it is shown that the above scenario of
shock formation proposed for CIRs also takes place for CMEs. Contradiction
with shock formation resulting from MHD modelling is explained by inability
of classical MHD to account for the role of wave dispersion in the formation
of the shock. |
| first_indexed | 2024-12-12T16:38:12Z |
| format | Article |
| id | doaj.art-f25e9696235c416aa21670c982ce89a0 |
| institution | Directory Open Access Journal |
| issn | 0992-7689 1432-0576 |
| language | English |
| last_indexed | 2024-12-12T16:38:12Z |
| publishDate | 2014-03-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Annales Geophysicae |
| spelling | doaj.art-f25e9696235c416aa21670c982ce89a02022-12-22T00:18:38ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05762014-03-013222323010.5194/angeo-32-223-2014Observation of shocks associated with CMEs in 2007H. Aryan0M. A. Balikhin1A. Taktakishvili2T. L. Zhang3Department of Automatic Control and Systems Engineering, University of Sheffield, Sheffield, UKDepartment of Automatic Control and Systems Engineering, University of Sheffield, Sheffield, UKNASA Goddard Space Flight Center, Greenbelt, Maryland, USASpace Research Institute, Austrian Academy of Sciences, Graz, AustriaThe interaction of CMEs with the solar wind can lead to the formation of interplanetary shocks. Ions accelerated at these shocks contribute to the solar energetic protons observed in the vicinity of the Earth. Recently a joint analysis of Venus Express (VEX) and STEREO data by Russell et al. (2009) have shown that the formation of strong shocks associated with Co-rotating Interaction Regions (CIRs) takes place between the orbits of Venus and the Earth as a result of coalescence of weaker shocks formed earlier. The present study uses VEX and Advanced Composition Explorer (ACE) data in order to analyse shocks associated with CMEs that erupted on 29 and 30 July 2007 during the solar wind conjunction period between Venus and the Earth. For these particular cases it is shown that the above scenario of shock formation proposed for CIRs also takes place for CMEs. Contradiction with shock formation resulting from MHD modelling is explained by inability of classical MHD to account for the role of wave dispersion in the formation of the shock.https://www.ann-geophys.net/32/223/2014/angeo-32-223-2014.pdf |
| spellingShingle | H. Aryan M. A. Balikhin A. Taktakishvili T. L. Zhang Observation of shocks associated with CMEs in 2007 Annales Geophysicae |
| title | Observation of shocks associated with CMEs in 2007 |
| title_full | Observation of shocks associated with CMEs in 2007 |
| title_fullStr | Observation of shocks associated with CMEs in 2007 |
| title_full_unstemmed | Observation of shocks associated with CMEs in 2007 |
| title_short | Observation of shocks associated with CMEs in 2007 |
| title_sort | observation of shocks associated with cmes in 2007 |
| url | https://www.ann-geophys.net/32/223/2014/angeo-32-223-2014.pdf |
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