Properties of hot electrons in the Jovian inner magnetosphere deduced from extended observations of the Io Plasma Torus

Ichiro Yoshikawa; Kazuo Yoshioka; Go Murakami; Fumiharu Suzuki; Reina Hikida; Atsushi Yamazaki; Tomoki Kimura; Fuminori Tsuchiya; Masato Kagitani; Takeshi Sakanoi; Kazunori Uemizu; Chihiro Tao; Hiromasa Nozawa; Yasumasa Kasaba; Masaki Fujimoto

doi:10.1002/2016GL070706

Properties of hot electrons in the Jovian inner magnetosphere deduced from extended observations of the Io Plasma Torus

Ichiro Yoshikawa, Kazuo Yoshioka, Go Murakami, Fumiharu Suzuki, Reina Hikida, Atsushi Yamazaki, Tomoki Kimura, Fuminori Tsuchiya, Masato Kagitani, Takeshi Sakanoi, Kazunori Uemizu, Chihiro Tao, Hiromasa Nozawa, Yasumasa Kasaba, Masaki Fujimoto

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

One of the focal points of interest in Jovian magnetospheric physics is the transport of energy and particles into the inner region. While an explosive energy release event in the midmagnetosphere is manifested as an aurora transient, its connection to the inner part has not been investigated due to sparsity of observations. Here we take the advantage of long-term and quasi-continuous simultaneous monitoring of the polar aurora and the Io Plasma Torus (IPT) located in the inner magnetosphere by Extreme Ultraviolet Spectroscope for Exospheric Dynamics/Hisaki. Studies on temporal characteristics over hours enable us to see slow (~10 h) coupling between the middle and inner magnetosphere as well as to quantify the temperature of hot electrons in the IPT. We derive parameters that characterize the strong particle acceleration process.

Original language	English
Pages (from-to)	11,552-11,557
Journal	Geophysical Research Letters
Volume	43
Issue number	22
DOIs	https://doi.org/10.1002/2016GL070706
Publication status	Published - 2016 Nov 28

Keywords

EUV
Hisaki
Io Plasma Torus
Jupiter
aurora
hot plasma

ASJC Scopus subject areas

Geophysics
Earth and Planetary Sciences(all)

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10.1002/2016GL070706

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Yoshikawa, I., Yoshioka, K., Murakami, G., Suzuki, F., Hikida, R., Yamazaki, A., Kimura, T., Tsuchiya, F., Kagitani, M., Sakanoi, T., Uemizu, K., Tao, C., Nozawa, H., Kasaba, Y., & Fujimoto, M. (2016). Properties of hot electrons in the Jovian inner magnetosphere deduced from extended observations of the Io Plasma Torus. Geophysical Research Letters, 43(22), 11,552-11,557. https://doi.org/10.1002/2016GL070706

Yoshikawa, I, Yoshioka, K, Murakami, G, Suzuki, F, Hikida, R, Yamazaki, A, Kimura, T, Tsuchiya, F , Kagitani, M , Sakanoi, T, Uemizu, K, Tao, C, Nozawa, H, Kasaba, Y & Fujimoto, M 2016, 'Properties of hot electrons in the Jovian inner magnetosphere deduced from extended observations of the Io Plasma Torus', Geophysical Research Letters, vol. 43, no. 22, pp. 11,552-11,557. https://doi.org/10.1002/2016GL070706

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abstract = "One of the focal points of interest in Jovian magnetospheric physics is the transport of energy and particles into the inner region. While an explosive energy release event in the midmagnetosphere is manifested as an aurora transient, its connection to the inner part has not been investigated due to sparsity of observations. Here we take the advantage of long-term and quasi-continuous simultaneous monitoring of the polar aurora and the Io Plasma Torus (IPT) located in the inner magnetosphere by Extreme Ultraviolet Spectroscope for Exospheric Dynamics/Hisaki. Studies on temporal characteristics over hours enable us to see slow (~10 h) coupling between the middle and inner magnetosphere as well as to quantify the temperature of hot electrons in the IPT. We derive parameters that characterize the strong particle acceleration process.",

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author = "Ichiro Yoshikawa and Kazuo Yoshioka and Go Murakami and Fumiharu Suzuki and Reina Hikida and Atsushi Yamazaki and Tomoki Kimura and Fuminori Tsuchiya and Masato Kagitani and Takeshi Sakanoi and Kazunori Uemizu and Chihiro Tao and Hiromasa Nozawa and Yasumasa Kasaba and Masaki Fujimoto",

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AU - Yoshikawa, Ichiro

AU - Yoshioka, Kazuo

AU - Murakami, Go

AU - Suzuki, Fumiharu

AU - Hikida, Reina

AU - Yamazaki, Atsushi

AU - Kimura, Tomoki

AU - Tsuchiya, Fuminori

AU - Kagitani, Masato

AU - Sakanoi, Takeshi

AU - Uemizu, Kazunori

AU - Tao, Chihiro

AU - Nozawa, Hiromasa

AU - Kasaba, Yasumasa

AU - Fujimoto, Masaki

PY - 2016/11/28

Y1 - 2016/11/28

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KW - EUV

KW - Hisaki

KW - Io Plasma Torus

KW - Jupiter

KW - aurora

KW - hot plasma

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ER -

Properties of hot electrons in the Jovian inner magnetosphere deduced from extended observations of the Io Plasma Torus

Abstract

Keywords

ASJC Scopus subject areas

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