Evolution of twisted magnetic flux ropes emerging into the solar corona

Y. Fan; S. E. Gibson

Evolution of twisted magnetic flux ropes emerging into the solar corona

HAO Administrative Office

Research output: Contribution to journal › Conference article › peer-review

Abstract

We present MHD simulations in both. 2D axisymmetric and 3D spherical geometries of the evolution of a twisted magnetic flux rope emerging into the low-β corona previously occupied by a potential arcade field. These simulations show two distinct stages of the evolution. The earlier evolution is quasistatic during which if the flux emergence is stopped, the flux rope settles to a neighboring equilibrium with stored free magnetic energy. Loss of equilibrium and eruption of the flux rope are found for both a 2D axisymmetric flux rope and a 3D line-tied flux rope, when too much twisted flux has been transported into the corona.

Original language	English
Pages (from-to)	241-248
Number of pages	8
Journal	European Space Agency, (Special Publication) ESA SP
Issue number	592
State	Published - 2005
Event	Solar Wind 11/SOHO 16 - Connecting Sun and Heliosphere - Whistler, Canada Duration: Jun 12 2005 → Jun 17 2005

Keywords

Corona - Sun
Magnetic fields
MHD - Sun

Cite this

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title = "Evolution of twisted magnetic flux ropes emerging into the solar corona",

abstract = "We present MHD simulations in both. 2D axisymmetric and 3D spherical geometries of the evolution of a twisted magnetic flux rope emerging into the low-β corona previously occupied by a potential arcade field. These simulations show two distinct stages of the evolution. The earlier evolution is quasistatic during which if the flux emergence is stopped, the flux rope settles to a neighboring equilibrium with stored free magnetic energy. Loss of equilibrium and eruption of the flux rope are found for both a 2D axisymmetric flux rope and a 3D line-tied flux rope, when too much twisted flux has been transported into the corona.",

keywords = "Corona - Sun, Magnetic fields, MHD - Sun",

author = "Y. Fan and Gibson, \{S. E.\}",

year = "2005",

language = "English",

pages = "241--248",

journal = "European Space Agency, (Special Publication) ESA SP",

issn = "0379-6566",

publisher = "European Space Agency",

number = "592",

note = "Solar Wind 11/SOHO 16 - Connecting Sun and Heliosphere ; Conference date: 12-06-2005 Through 17-06-2005",

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TY - JOUR

T1 - Evolution of twisted magnetic flux ropes emerging into the solar corona

AU - Fan, Y.

AU - Gibson, S. E.

PY - 2005

Y1 - 2005

N2 - We present MHD simulations in both. 2D axisymmetric and 3D spherical geometries of the evolution of a twisted magnetic flux rope emerging into the low-β corona previously occupied by a potential arcade field. These simulations show two distinct stages of the evolution. The earlier evolution is quasistatic during which if the flux emergence is stopped, the flux rope settles to a neighboring equilibrium with stored free magnetic energy. Loss of equilibrium and eruption of the flux rope are found for both a 2D axisymmetric flux rope and a 3D line-tied flux rope, when too much twisted flux has been transported into the corona.

AB - We present MHD simulations in both. 2D axisymmetric and 3D spherical geometries of the evolution of a twisted magnetic flux rope emerging into the low-β corona previously occupied by a potential arcade field. These simulations show two distinct stages of the evolution. The earlier evolution is quasistatic during which if the flux emergence is stopped, the flux rope settles to a neighboring equilibrium with stored free magnetic energy. Loss of equilibrium and eruption of the flux rope are found for both a 2D axisymmetric flux rope and a 3D line-tied flux rope, when too much twisted flux has been transported into the corona.

KW - Corona - Sun

KW - Magnetic fields

KW - MHD - Sun

UR - https://www.scopus.com/pages/publications/32644452351

M3 - Conference article

AN - SCOPUS:32644452351

SN - 0379-6566

SP - 241

EP - 248

JO - European Space Agency, (Special Publication) ESA SP

JF - European Space Agency, (Special Publication) ESA SP

IS - 592

T2 - Solar Wind 11/SOHO 16 - Connecting Sun and Heliosphere

Y2 - 12 June 2005 through 17 June 2005

ER -

Evolution of twisted magnetic flux ropes emerging into the solar corona

Abstract

Keywords

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