Ulysses plasma observations of coronal mass ejections near 2.5 AU

J. L. Phillips; S. J. Bame; J. T. Gosling; D. J. McComas; B. E. Goldstein; E. J. Smith; A. Balogh; R. J. Forsyth

doi:10.1029/92GL00529

Ulysses plasma observations of coronal mass ejections near 2.5 AU

J. L. Phillips, S. J. Bame, J. T. Gosling, D. J. McComas, B. E. Goldstein, E. J. Smith, A. Balogh, R. J. Forsyth

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Abstract

The Ulysses solar wind plasma experiment observed a series of interplanetary shocks and coronal mass ejections (CMEs), the latter evidenced by counterstreaming electrons and a variety of ion signatures, during March and April 1991. A striking sequence was observed near 2.5 AU from March 23 through April 2, with the second of two counterstreaming events lasting 6.4 days. We summarize the plasma observations for these features, suggesting that the second counterstreaming period may be two juxtaposed CMEs. The relationship between the events observed at Ulysses, ∼60° east of Earth in ecliptic longitude, and those causing a geomagnetic storm on March 24, is unclear.

Original language	English (US)
Pages (from-to)	1239-1242
Number of pages	4
Journal	Geophysical Research Letters
Volume	19
Issue number	12
DOIs	https://doi.org/10.1029/92GL00529
State	Published - Jun 19 1992
Externally published	Yes

All Science Journal Classification (ASJC) codes

Geophysics
General Earth and Planetary Sciences

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title = "Ulysses plasma observations of coronal mass ejections near 2.5 AU",

abstract = "The Ulysses solar wind plasma experiment observed a series of interplanetary shocks and coronal mass ejections (CMEs), the latter evidenced by counterstreaming electrons and a variety of ion signatures, during March and April 1991. A striking sequence was observed near 2.5 AU from March 23 through April 2, with the second of two counterstreaming events lasting 6.4 days. We summarize the plasma observations for these features, suggesting that the second counterstreaming period may be two juxtaposed CMEs. The relationship between the events observed at Ulysses, ∼60° east of Earth in ecliptic longitude, and those causing a geomagnetic storm on March 24, is unclear.",

author = "Phillips, {J. L.} and Bame, {S. J.} and Gosling, {J. T.} and McComas, {D. J.} and Goldstein, {B. E.} and Smith, {E. J.} and A. Balogh and Forsyth, {R. J.}",

year = "1992",

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doi = "10.1029/92GL00529",

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volume = "19",

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T1 - Ulysses plasma observations of coronal mass ejections near 2.5 AU

AU - Phillips, J. L.

AU - Bame, S. J.

AU - Gosling, J. T.

AU - McComas, D. J.

AU - Goldstein, B. E.

AU - Smith, E. J.

AU - Balogh, A.

AU - Forsyth, R. J.

PY - 1992/6/19

Y1 - 1992/6/19

N2 - The Ulysses solar wind plasma experiment observed a series of interplanetary shocks and coronal mass ejections (CMEs), the latter evidenced by counterstreaming electrons and a variety of ion signatures, during March and April 1991. A striking sequence was observed near 2.5 AU from March 23 through April 2, with the second of two counterstreaming events lasting 6.4 days. We summarize the plasma observations for these features, suggesting that the second counterstreaming period may be two juxtaposed CMEs. The relationship between the events observed at Ulysses, ∼60° east of Earth in ecliptic longitude, and those causing a geomagnetic storm on March 24, is unclear.

AB - The Ulysses solar wind plasma experiment observed a series of interplanetary shocks and coronal mass ejections (CMEs), the latter evidenced by counterstreaming electrons and a variety of ion signatures, during March and April 1991. A striking sequence was observed near 2.5 AU from March 23 through April 2, with the second of two counterstreaming events lasting 6.4 days. We summarize the plasma observations for these features, suggesting that the second counterstreaming period may be two juxtaposed CMEs. The relationship between the events observed at Ulysses, ∼60° east of Earth in ecliptic longitude, and those causing a geomagnetic storm on March 24, is unclear.

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Ulysses plasma observations of coronal mass ejections near 2.5 AU

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