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Growth phase of Jovian substorms
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| Zeitschriftentitel: | Geophysical Research Letters |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Geophysical Research Letters, 34, 2007, 23 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Geophysical Union (AGU)
|
| Schlagwörter: |
| author_facet |
Ge, Y. S. Jian, L. K. Russell, C. T. Ge, Y. S. Jian, L. K. Russell, C. T. |
|---|---|
| author |
Ge, Y. S. Jian, L. K. Russell, C. T. |
| spellingShingle |
Ge, Y. S. Jian, L. K. Russell, C. T. Geophysical Research Letters Growth phase of Jovian substorms General Earth and Planetary Sciences Geophysics |
| author_sort |
ge, y. s. |
| spelling |
Ge, Y. S. Jian, L. K. Russell, C. T. 0094-8276 1944-8007 American Geophysical Union (AGU) General Earth and Planetary Sciences Geophysics http://dx.doi.org/10.1029/2007gl031987 <jats:p>Strong northward and southward field turnings in the near Jovian magnetotail have been observed by Galileo. These sudden dipolarizations and plasmoid formations have been interpreted as signatures of tail reconnection, similar to those seen in terrestrial substorms. In this paper, we examine the temporal behavior of the magnetic field strength in the lobes of the Jovian tail and find that it increases smoothly prior to reconnection events and decreases after them. The tail field variations are similar to those during the growth phase and expansion phase of terrestrial substorms but last a much longer time, about three days. These lobe field changes appear not to be caused by the solar wind dynamic pressure (P<jats:sub>dyn</jats:sub>). Thus substorms in the Jovian tail resemble terrestrial substorms in that they have growth phases with increases of the magnetic field strength in the near‐planetary tail field followed by sudden decreases of the field strength when reconnection occurs and plasmoids are released.</jats:p> Growth phase of Jovian substorms Geophysical Research Letters |
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| title |
Growth phase of Jovian substorms |
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Growth phase of Jovian substorms |
| title_full |
Growth phase of Jovian substorms |
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Growth phase of Jovian substorms |
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Growth phase of Jovian substorms |
| title_short |
Growth phase of Jovian substorms |
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growth phase of jovian substorms |
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General Earth and Planetary Sciences Geophysics |
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http://dx.doi.org/10.1029/2007gl031987 |
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2007 |
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| description |
<jats:p>Strong northward and southward field turnings in the near Jovian magnetotail have been observed by Galileo. These sudden dipolarizations and plasmoid formations have been interpreted as signatures of tail reconnection, similar to those seen in terrestrial substorms. In this paper, we examine the temporal behavior of the magnetic field strength in the lobes of the Jovian tail and find that it increases smoothly prior to reconnection events and decreases after them. The tail field variations are similar to those during the growth phase and expansion phase of terrestrial substorms but last a much longer time, about three days. These lobe field changes appear not to be caused by the solar wind dynamic pressure (P<jats:sub>dyn</jats:sub>). Thus substorms in the Jovian tail resemble terrestrial substorms in that they have growth phases with increases of the magnetic field strength in the near‐planetary tail field followed by sudden decreases of the field strength when reconnection occurs and plasmoids are released.</jats:p> |
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| author | Ge, Y. S., Jian, L. K., Russell, C. T. |
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| description | <jats:p>Strong northward and southward field turnings in the near Jovian magnetotail have been observed by Galileo. These sudden dipolarizations and plasmoid formations have been interpreted as signatures of tail reconnection, similar to those seen in terrestrial substorms. In this paper, we examine the temporal behavior of the magnetic field strength in the lobes of the Jovian tail and find that it increases smoothly prior to reconnection events and decreases after them. The tail field variations are similar to those during the growth phase and expansion phase of terrestrial substorms but last a much longer time, about three days. These lobe field changes appear not to be caused by the solar wind dynamic pressure (P<jats:sub>dyn</jats:sub>). Thus substorms in the Jovian tail resemble terrestrial substorms in that they have growth phases with increases of the magnetic field strength in the near‐planetary tail field followed by sudden decreases of the field strength when reconnection occurs and plasmoids are released.</jats:p> |
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| imprint | American Geophysical Union (AGU), 2007 |
| imprint_str_mv | American Geophysical Union (AGU), 2007 |
| institution | DE-Brt1, DE-Zwi2, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Rs1, DE-Pl11, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275, DE-Bn3 |
| issn | 0094-8276, 1944-8007 |
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| series | Geophysical Research Letters |
| source_id | 49 |
| spelling | Ge, Y. S. Jian, L. K. Russell, C. T. 0094-8276 1944-8007 American Geophysical Union (AGU) General Earth and Planetary Sciences Geophysics http://dx.doi.org/10.1029/2007gl031987 <jats:p>Strong northward and southward field turnings in the near Jovian magnetotail have been observed by Galileo. These sudden dipolarizations and plasmoid formations have been interpreted as signatures of tail reconnection, similar to those seen in terrestrial substorms. In this paper, we examine the temporal behavior of the magnetic field strength in the lobes of the Jovian tail and find that it increases smoothly prior to reconnection events and decreases after them. The tail field variations are similar to those during the growth phase and expansion phase of terrestrial substorms but last a much longer time, about three days. These lobe field changes appear not to be caused by the solar wind dynamic pressure (P<jats:sub>dyn</jats:sub>). Thus substorms in the Jovian tail resemble terrestrial substorms in that they have growth phases with increases of the magnetic field strength in the near‐planetary tail field followed by sudden decreases of the field strength when reconnection occurs and plasmoids are released.</jats:p> Growth phase of Jovian substorms Geophysical Research Letters |
| spellingShingle | Ge, Y. S., Jian, L. K., Russell, C. T., Geophysical Research Letters, Growth phase of Jovian substorms, General Earth and Planetary Sciences, Geophysics |
| title | Growth phase of Jovian substorms |
| title_full | Growth phase of Jovian substorms |
| title_fullStr | Growth phase of Jovian substorms |
| title_full_unstemmed | Growth phase of Jovian substorms |
| title_short | Growth phase of Jovian substorms |
| title_sort | growth phase of jovian substorms |
| title_unstemmed | Growth phase of Jovian substorms |
| topic | General Earth and Planetary Sciences, Geophysics |
| url | http://dx.doi.org/10.1029/2007gl031987 |