GEOTAIL observation of magnetosonic Pc 3 waves in the dayside magnetosphere

Kazue Takahashi; S. Kokubun; H. Matsuoka; K. Shiokawa; K. Yumoto; M. Nakamura; H. Kawano; T. Yamamoto; A. Matsuoka; K. Tsuruda; H. Hayakawa; H. Kojima; H. Matsumoto

doi:10.1029/94GL01419

GEOTAIL observation of magnetosonic Pc 3 waves in the dayside magnetosphere

Kazue Takahashi, S. Kokubun, H. Matsuoka, K. Shiokawa, K. Yumoto, M. Nakamura, H. Kawano, T. Yamamoto, A. Matsuoka, K. Tsuruda, H. Hayakawa, H. Kojima, H. Matsumoto

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16 Citations (Scopus)

Abstract

Compressional Pc 3 magnetic pulsations and accompanying electric field oscillations were observed by the GEOTAIL satellite in the dayside magnetosphere on October 17–18, 1992. When interpreted in terms of MHD wave modes, the oscillations in the fields are consistent with fast magnetosonic waves propagating Earthward. This result lends strong support to the view that ULF waves generated near the quasi‐parallel portion of the bow shock propagate into the magnetosphere and are observed as compressional Pc 3 pulsations in the dayside magnetosphere. The Earthward component of Poynting flux associated with the pulsations is ∼ 5 × 10⁻⁸ W/m².

Original language	English
Pages (from-to)	2899-2902
Number of pages	4
Journal	Geophysical Research Letters
Volume	21
Issue number	25
DOIs	https://doi.org/10.1029/94GL01419
Publication status	Published - Dec 15 1994
Externally published	Yes

All Science Journal Classification (ASJC) codes

Geophysics
Earth and Planetary Sciences(all)

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10.1029/94GL01419

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@article{f0a108792c1543d9b3205d145a12fb65,

title = "GEOTAIL observation of magnetosonic Pc 3 waves in the dayside magnetosphere",

abstract = "Compressional Pc 3 magnetic pulsations and accompanying electric field oscillations were observed by the GEOTAIL satellite in the dayside magnetosphere on October 17–18, 1992. When interpreted in terms of MHD wave modes, the oscillations in the fields are consistent with fast magnetosonic waves propagating Earthward. This result lends strong support to the view that ULF waves generated near the quasi‐parallel portion of the bow shock propagate into the magnetosphere and are observed as compressional Pc 3 pulsations in the dayside magnetosphere. The Earthward component of Poynting flux associated with the pulsations is ∼ 5 × 10−8 W/m².",

author = "Kazue Takahashi and S. Kokubun and H. Matsuoka and K. Shiokawa and K. Yumoto and M. Nakamura and H. Kawano and T. Yamamoto and A. Matsuoka and K. Tsuruda and H. Hayakawa and H. Kojima and H. Matsumoto",

year = "1994",

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day = "15",

doi = "10.1029/94GL01419",

language = "English",

volume = "21",

pages = "2899--2902",

journal = "Geophysical Research Letters",

issn = "0094-8276",

publisher = "American Geophysical Union",

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TY - JOUR

T1 - GEOTAIL observation of magnetosonic Pc 3 waves in the dayside magnetosphere

AU - Takahashi, Kazue

AU - Kokubun, S.

AU - Matsuoka, H.

AU - Shiokawa, K.

AU - Yumoto, K.

AU - Nakamura, M.

AU - Kawano, H.

AU - Yamamoto, T.

AU - Matsuoka, A.

AU - Tsuruda, K.

AU - Hayakawa, H.

AU - Kojima, H.

AU - Matsumoto, H.

PY - 1994/12/15

Y1 - 1994/12/15

N2 - Compressional Pc 3 magnetic pulsations and accompanying electric field oscillations were observed by the GEOTAIL satellite in the dayside magnetosphere on October 17–18, 1992. When interpreted in terms of MHD wave modes, the oscillations in the fields are consistent with fast magnetosonic waves propagating Earthward. This result lends strong support to the view that ULF waves generated near the quasi‐parallel portion of the bow shock propagate into the magnetosphere and are observed as compressional Pc 3 pulsations in the dayside magnetosphere. The Earthward component of Poynting flux associated with the pulsations is ∼ 5 × 10−8 W/m².

AB - Compressional Pc 3 magnetic pulsations and accompanying electric field oscillations were observed by the GEOTAIL satellite in the dayside magnetosphere on October 17–18, 1992. When interpreted in terms of MHD wave modes, the oscillations in the fields are consistent with fast magnetosonic waves propagating Earthward. This result lends strong support to the view that ULF waves generated near the quasi‐parallel portion of the bow shock propagate into the magnetosphere and are observed as compressional Pc 3 pulsations in the dayside magnetosphere. The Earthward component of Poynting flux associated with the pulsations is ∼ 5 × 10−8 W/m².

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DO - 10.1029/94GL01419

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VL - 21

SP - 2899

EP - 2902

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 25

ER -

GEOTAIL observation of magnetosonic Pc 3 waves in the dayside magnetosphere

Abstract

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