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Evidence for reconnection at Saturn's magnetopause
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| Zeitschriftentitel: | Journal of Geophysical Research: Space Physics |
|---|---|
| Personen und Körperschaften: | , , , , , , |
| In: | Journal of Geophysical Research: Space Physics, 113, 2008, A4 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Geophysical Union (AGU)
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| Schlagwörter: |
| author_facet |
McAndrews, H. J. Owen, C. J. Thomsen, M. F. Lavraud, B. Coates, A. J. Dougherty, M. K. Young, D. T. McAndrews, H. J. Owen, C. J. Thomsen, M. F. Lavraud, B. Coates, A. J. Dougherty, M. K. Young, D. T. |
|---|---|
| author |
McAndrews, H. J. Owen, C. J. Thomsen, M. F. Lavraud, B. Coates, A. J. Dougherty, M. K. Young, D. T. |
| spellingShingle |
McAndrews, H. J. Owen, C. J. Thomsen, M. F. Lavraud, B. Coates, A. J. Dougherty, M. K. Young, D. T. Journal of Geophysical Research: Space Physics Evidence for reconnection at Saturn's magnetopause Paleontology Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Atmospheric Science Earth-Surface Processes Geochemistry and Petrology Soil Science Water Science and Technology Ecology Aquatic Science Forestry Oceanography Geophysics |
| author_sort |
mcandrews, h. j. |
| spelling |
McAndrews, H. J. Owen, C. J. Thomsen, M. F. Lavraud, B. Coates, A. J. Dougherty, M. K. Young, D. T. 0148-0227 American Geophysical Union (AGU) Paleontology Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Atmospheric Science Earth-Surface Processes Geochemistry and Petrology Soil Science Water Science and Technology Ecology Aquatic Science Forestry Oceanography Geophysics http://dx.doi.org/10.1029/2007ja012581 <jats:p>Observations of Saturn's magnetopause by the Cassini Plasma Spectrometer (CAPS) and magnetometer have revealed clear instances of magnetic reconnection signatures, two of which are described here. Both encounters occurred at the equator in the prenoon sector as Cassini was exiting the magnetosphere. Evidence of heating in the electrons and ions is highly suggestive of energization comparable to that associated with the reconnection process at Earth. In one case, the fields are strongly antiparallel and the magnetic data indicate the presence of a locally open magnetic field. In the other example, magnetic data indicate a locally closed magnetic field compatible with the field lines being locally parallel, but the particle signatures lead to the conclusion of a distant reconnection site poleward of the cusps being active. The reconnection voltage for the first case is calculated to be 48 kV, which is of the same order as previous estimates at Saturn. This is lower than the corotational voltage but is not insignificant.</jats:p> Evidence for reconnection at Saturn's magnetopause Journal of Geophysical Research: Space Physics |
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Evidence for reconnection at Saturn's magnetopause |
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Evidence for reconnection at Saturn's magnetopause |
| title_full |
Evidence for reconnection at Saturn's magnetopause |
| title_fullStr |
Evidence for reconnection at Saturn's magnetopause |
| title_full_unstemmed |
Evidence for reconnection at Saturn's magnetopause |
| title_short |
Evidence for reconnection at Saturn's magnetopause |
| title_sort |
evidence for reconnection at saturn's magnetopause |
| topic |
Paleontology Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Atmospheric Science Earth-Surface Processes Geochemistry and Petrology Soil Science Water Science and Technology Ecology Aquatic Science Forestry Oceanography Geophysics |
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http://dx.doi.org/10.1029/2007ja012581 |
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<jats:p>Observations of Saturn's magnetopause by the Cassini Plasma Spectrometer (CAPS) and magnetometer have revealed clear instances of magnetic reconnection signatures, two of which are described here. Both encounters occurred at the equator in the prenoon sector as Cassini was exiting the magnetosphere. Evidence of heating in the electrons and ions is highly suggestive of energization comparable to that associated with the reconnection process at Earth. In one case, the fields are strongly antiparallel and the magnetic data indicate the presence of a locally open magnetic field. In the other example, magnetic data indicate a locally closed magnetic field compatible with the field lines being locally parallel, but the particle signatures lead to the conclusion of a distant reconnection site poleward of the cusps being active. The reconnection voltage for the first case is calculated to be 48 kV, which is of the same order as previous estimates at Saturn. This is lower than the corotational voltage but is not insignificant.</jats:p> |
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| author | McAndrews, H. J., Owen, C. J., Thomsen, M. F., Lavraud, B., Coates, A. J., Dougherty, M. K., Young, D. T. |
| author_facet | McAndrews, H. J., Owen, C. J., Thomsen, M. F., Lavraud, B., Coates, A. J., Dougherty, M. K., Young, D. T., McAndrews, H. J., Owen, C. J., Thomsen, M. F., Lavraud, B., Coates, A. J., Dougherty, M. K., Young, D. T. |
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| description | <jats:p>Observations of Saturn's magnetopause by the Cassini Plasma Spectrometer (CAPS) and magnetometer have revealed clear instances of magnetic reconnection signatures, two of which are described here. Both encounters occurred at the equator in the prenoon sector as Cassini was exiting the magnetosphere. Evidence of heating in the electrons and ions is highly suggestive of energization comparable to that associated with the reconnection process at Earth. In one case, the fields are strongly antiparallel and the magnetic data indicate the presence of a locally open magnetic field. In the other example, magnetic data indicate a locally closed magnetic field compatible with the field lines being locally parallel, but the particle signatures lead to the conclusion of a distant reconnection site poleward of the cusps being active. The reconnection voltage for the first case is calculated to be 48 kV, which is of the same order as previous estimates at Saturn. This is lower than the corotational voltage but is not insignificant.</jats:p> |
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| spelling | McAndrews, H. J. Owen, C. J. Thomsen, M. F. Lavraud, B. Coates, A. J. Dougherty, M. K. Young, D. T. 0148-0227 American Geophysical Union (AGU) Paleontology Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Atmospheric Science Earth-Surface Processes Geochemistry and Petrology Soil Science Water Science and Technology Ecology Aquatic Science Forestry Oceanography Geophysics http://dx.doi.org/10.1029/2007ja012581 <jats:p>Observations of Saturn's magnetopause by the Cassini Plasma Spectrometer (CAPS) and magnetometer have revealed clear instances of magnetic reconnection signatures, two of which are described here. Both encounters occurred at the equator in the prenoon sector as Cassini was exiting the magnetosphere. Evidence of heating in the electrons and ions is highly suggestive of energization comparable to that associated with the reconnection process at Earth. In one case, the fields are strongly antiparallel and the magnetic data indicate the presence of a locally open magnetic field. In the other example, magnetic data indicate a locally closed magnetic field compatible with the field lines being locally parallel, but the particle signatures lead to the conclusion of a distant reconnection site poleward of the cusps being active. The reconnection voltage for the first case is calculated to be 48 kV, which is of the same order as previous estimates at Saturn. This is lower than the corotational voltage but is not insignificant.</jats:p> Evidence for reconnection at Saturn's magnetopause Journal of Geophysical Research: Space Physics |
| spellingShingle | McAndrews, H. J., Owen, C. J., Thomsen, M. F., Lavraud, B., Coates, A. J., Dougherty, M. K., Young, D. T., Journal of Geophysical Research: Space Physics, Evidence for reconnection at Saturn's magnetopause, Paleontology, Space and Planetary Science, Earth and Planetary Sciences (miscellaneous), Atmospheric Science, Earth-Surface Processes, Geochemistry and Petrology, Soil Science, Water Science and Technology, Ecology, Aquatic Science, Forestry, Oceanography, Geophysics |
| title | Evidence for reconnection at Saturn's magnetopause |
| title_full | Evidence for reconnection at Saturn's magnetopause |
| title_fullStr | Evidence for reconnection at Saturn's magnetopause |
| title_full_unstemmed | Evidence for reconnection at Saturn's magnetopause |
| title_short | Evidence for reconnection at Saturn's magnetopause |
| title_sort | evidence for reconnection at saturn's magnetopause |
| title_unstemmed | Evidence for reconnection at Saturn's magnetopause |
| topic | Paleontology, Space and Planetary Science, Earth and Planetary Sciences (miscellaneous), Atmospheric Science, Earth-Surface Processes, Geochemistry and Petrology, Soil Science, Water Science and Technology, Ecology, Aquatic Science, Forestry, Oceanography, Geophysics |
| url | http://dx.doi.org/10.1029/2007ja012581 |