Magnetic reconnection flux and coronal mass ejection velocity

Jiong Qiu; Vasyl Yurchyshyn

doi:10.1086/498716

Magnetic reconnection flux and coronal mass ejection velocity

Jiong Qiu, Vasyl Yurchyshyn

Center For Solar Terrestrial Research - Big Bear Solar Observatory

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

88 Scopus citations

Abstract

We explore the relationship between the total reconnection flux ψ_rec estimated from flare observations and the velocity V _CME of coronal mass ejections (CMEs) observed with the Large Angle and Spectrometric Coronagraph (LASCO) Experiment. Our study includes 13 events with varying magnetic configurations in source regions. It is shown that V _CME is proportional to ψ_rec, with a linear cross-correlation of 89% and confidence level greater than 99.5%. This result confirms the importance of magnetic flux transferred by magnetic reconnection in the early stage of fast CMEs. On the other hand, the CME velocity and kinematic energy are probably independent of magnetic configurations of source regions.

Original language	English (US)
Pages (from-to)	L121-L124
Journal	Astrophysical Journal
Volume	634
Issue number	1 II
DOIs	https://doi.org/10.1086/498716
State	Published - Nov 20 2005

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Sun: activity
Sun: coronal mass ejections (CMEs)
Sun: flares
Sun: magnetic fields

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10.1086/498716

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title = "Magnetic reconnection flux and coronal mass ejection velocity",

abstract = "We explore the relationship between the total reconnection flux ψrec estimated from flare observations and the velocity V CME of coronal mass ejections (CMEs) observed with the Large Angle and Spectrometric Coronagraph (LASCO) Experiment. Our study includes 13 events with varying magnetic configurations in source regions. It is shown that V CME is proportional to ψrec, with a linear cross-correlation of 89% and confidence level greater than 99.5%. This result confirms the importance of magnetic flux transferred by magnetic reconnection in the early stage of fast CMEs. On the other hand, the CME velocity and kinematic energy are probably independent of magnetic configurations of source regions.",

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AU - Qiu, Jiong

AU - Yurchyshyn, Vasyl

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N2 - We explore the relationship between the total reconnection flux ψrec estimated from flare observations and the velocity V CME of coronal mass ejections (CMEs) observed with the Large Angle and Spectrometric Coronagraph (LASCO) Experiment. Our study includes 13 events with varying magnetic configurations in source regions. It is shown that V CME is proportional to ψrec, with a linear cross-correlation of 89% and confidence level greater than 99.5%. This result confirms the importance of magnetic flux transferred by magnetic reconnection in the early stage of fast CMEs. On the other hand, the CME velocity and kinematic energy are probably independent of magnetic configurations of source regions.

AB - We explore the relationship between the total reconnection flux ψrec estimated from flare observations and the velocity V CME of coronal mass ejections (CMEs) observed with the Large Angle and Spectrometric Coronagraph (LASCO) Experiment. Our study includes 13 events with varying magnetic configurations in source regions. It is shown that V CME is proportional to ψrec, with a linear cross-correlation of 89% and confidence level greater than 99.5%. This result confirms the importance of magnetic flux transferred by magnetic reconnection in the early stage of fast CMEs. On the other hand, the CME velocity and kinematic energy are probably independent of magnetic configurations of source regions.

KW - Sun: activity

KW - Sun: coronal mass ejections (CMEs)

KW - Sun: flares

KW - Sun: magnetic fields

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JO - Astrophysical Journal

JF - Astrophysical Journal

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Magnetic reconnection flux and coronal mass ejection velocity

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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