Dispersion relation of electromagnetic ion cyclotron waves using Cluster observations
Multi-point wave observations on Cluster spacecraft are used to infer the dispersion relation of electromagnetic ion cyclotron (EMIC) waves. In this study we use a phase differencing method and observations from STAFF and WHISPER during a well-studied event of 30 March 2002. The phase differencing m...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | en_US |
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Copernicus GmbH
2013
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| Online Access: | http://hdl.handle.net/1721.1/81304 |
| _version_ | 1811068739166142464 |
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| author | Pakhotin, I. P. Walker, S. N. Balikhin, M. A. Shprits, Yuri |
| author2 | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Pakhotin, I. P. Walker, S. N. Balikhin, M. A. Shprits, Yuri |
| author_sort | Pakhotin, I. P. |
| collection | MIT |
| description | Multi-point wave observations on Cluster spacecraft are used to infer the dispersion relation of electromagnetic ion cyclotron (EMIC) waves. In this study we use a phase differencing method and observations from STAFF and WHISPER during a well-studied event of 30 March 2002. The phase differencing method requires the knowledge of the direction of the wave vector, which was obtained using minimum variance analysis. Wave vector amplitudes were calculated for a number of frequencies to infer the dispersion relation experimentally. The obtained dispersion relation is largely consistent with the cold plasma dispersion relation. The presented method allows inferring the dispersion relation experimentally. It can be also used in the future to analyse the hot plasma dispersion relation of waves near the local gyrofrequency that can occur under high plasma beta conditions. |
| first_indexed | 2024-09-23T08:00:21Z |
| format | Article |
| id | mit-1721.1/81304 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:00:21Z |
| publishDate | 2013 |
| publisher | Copernicus GmbH |
| record_format | dspace |
| spelling | mit-1721.1/813042022-09-23T10:13:48Z Dispersion relation of electromagnetic ion cyclotron waves using Cluster observations Pakhotin, I. P. Walker, S. N. Balikhin, M. A. Shprits, Yuri Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Shprits, Yuri Multi-point wave observations on Cluster spacecraft are used to infer the dispersion relation of electromagnetic ion cyclotron (EMIC) waves. In this study we use a phase differencing method and observations from STAFF and WHISPER during a well-studied event of 30 March 2002. The phase differencing method requires the knowledge of the direction of the wave vector, which was obtained using minimum variance analysis. Wave vector amplitudes were calculated for a number of frequencies to infer the dispersion relation experimentally. The obtained dispersion relation is largely consistent with the cold plasma dispersion relation. The presented method allows inferring the dispersion relation experimentally. It can be also used in the future to analyse the hot plasma dispersion relation of waves near the local gyrofrequency that can occur under high plasma beta conditions. UC Lab Fee Grant United States. National Aeronautics and Space Administration (Grant NNX10AK99G) 2013-10-04T13:41:02Z 2013-10-04T13:41:02Z 2013-08 2013-07 Article http://purl.org/eprint/type/JournalArticle 1432-0576 0992-7689 http://hdl.handle.net/1721.1/81304 Pakhotin, I. P., S. N. Walker, Y. Y. Shprits, and M. A. Balikhin. “Dispersion relation of electromagnetic ion cyclotron waves using Cluster observations.” Annales Geophysicae 31, no. 8 (August 26, 2013): 1437-1446. en_US http://dx.doi.org/10.5194/angeo-31-1437-2013 Annales Geophysicae http://creativecommons.org/licenses/by/3.0/ application/pdf Copernicus GmbH Copernicus GmbH |
| spellingShingle | Pakhotin, I. P. Walker, S. N. Balikhin, M. A. Shprits, Yuri Dispersion relation of electromagnetic ion cyclotron waves using Cluster observations |
| title | Dispersion relation of electromagnetic ion cyclotron waves using Cluster observations |
| title_full | Dispersion relation of electromagnetic ion cyclotron waves using Cluster observations |
| title_fullStr | Dispersion relation of electromagnetic ion cyclotron waves using Cluster observations |
| title_full_unstemmed | Dispersion relation of electromagnetic ion cyclotron waves using Cluster observations |
| title_short | Dispersion relation of electromagnetic ion cyclotron waves using Cluster observations |
| title_sort | dispersion relation of electromagnetic ion cyclotron waves using cluster observations |
| url | http://hdl.handle.net/1721.1/81304 |
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