Aryan, H, Balikhin, MA, Taktakishvili, A et al. (1 more author) (2014) Observation of shocks associated with CMEs in 2007. Annales Geophysicae, 32 (3). 223 - 230. ISSN 0992-7689
Abstract
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.©Author(s) 2014.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2014 Aryan et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Keywords: | Interplanetary physics, solar wind plasma, ionosphere modeling and forecasting, particle acceleration |
Dates: |
|
Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Automatic Control and Systems Engineering (Sheffield) |
Funding Information: | Funder Grant number EPSRC EP/J500525/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 11 Apr 2014 14:24 |
Last Modified: | 11 Apr 2014 14:24 |
Published Version: | http://dx.doi.org/10.5194/angeo-32-223-2014 |
Status: | Published |
Publisher: | Copernicus |
Refereed: | Yes |
Identification Number: | 10.5194/angeo-32-223-2014 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:78484 |