On the Relation Between Jovian Aurorae and the Loading/Unloading of the Magnetic Flux: Simultaneous Measurements From Juno, Hubble Space Telescope, and Hisaki
| Autor: | A. T. Y. Lui, Barry Mauk, Fran Bagenal, Ruilong Guo, Licia C Ray, Sarah V. Badman, Kazuo Yoshioka, Shengyi Ye, Steve Levin, I. J. Rae, Aikaterini Radioti, Tomoki Kimura, William Dunn, Denis Grodent, Zhonghua Yao, Bertrand Bonfond, William S. Kurth, Benjamin Palmaerts, J. C. Gérard, George Clark, Zuyin Pu, Scott Bolton, Jonathan D. Nichols |
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| Rok vydání: | 2019 |
| Předmět: |
Physics
010504 meteorology & atmospheric sciences Spacecraft business.industry Astrophysics::High Energy Astrophysical Phenomena Magnetosphere Magnetic reconnection F500 Astrophysics 010502 geochemistry & geophysics 01 natural sciences Jovian Magnetic flux Magnetic field Jupiter Geophysics Physics::Space Physics General Earth and Planetary Sciences business 0105 earth and related environmental sciences Radio wave |
| Zdroj: | Geophysical Research Letters. 46:11632-11641 |
| ISSN: | 1944-8007 0094-8276 |
| DOI: | 10.1029/2019gl084201 |
| Popis: | We present simultaneous observations of aurorae at Jupiter from the Hubble Space Telescope and Hisaki, in combination with the in situ measurements of magnetic field, particles, and radio waves from the Juno Spacecraft in the outer magnetosphere, from ~ 80RJ to 60RJ during 17 to 22 March 2017. Two cycles of accumulation and release of magnetic flux, named magnetic loading/unloading, were identified during this period, which correlate well with electron energization and auroral intensifications. Magnetic reconnection events are identified during both the loading and unloading periods, indicating that reconnection and unloading are independent processes. These results show that the dynamics in the middle magnetosphere are coupled with auroral variability. |
| Databáze: | OpenAIRE |
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