Multiple eruptions from magnetic flux emergence

David MacTaggart, Alan W. Hood

Research output: Contribution to journalArticle

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Abstract

Aims. In this paper we study the effects of a toroidal magnetic flux tube emerging into a magnetized corona, with an emphasis on large-scale eruptions. The orientation of the fields is such that the two flux systems are almost antiparallel when they meet.
Methods. We follow the dynamic evolution of the system by solving the 3D MHD equations using a Lagrangian remap scheme.
Results. Multiple eruptions are found to occur. The physics of the trigger mechanisms is discussed and related to well-known eruption models.
Original languageEnglish
Pages (from-to)445-449
Number of pages5
JournalAstronomy and Astrophysics
Volume508
Issue number1
DOIs
StatePublished - Dec 2009

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volcanic eruptions
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MacTaggart, David; Hood, Alan W. / Multiple eruptions from magnetic flux emergence.

In: Astronomy and Astrophysics, Vol. 508, No. 1, 12.2009, p. 445-449.

Research output: Contribution to journalArticle

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MacTaggart, D & Hood, AW 2009, 'Multiple eruptions from magnetic flux emergence' Astronomy and Astrophysics, vol 508, no. 1, pp. 445-449. DOI: 10.1051/0004-6361/200913197

Multiple eruptions from magnetic flux emergence. / MacTaggart, David; Hood, Alan W.

In: Astronomy and Astrophysics, Vol. 508, No. 1, 12.2009, p. 445-449.

Research output: Contribution to journalArticle

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AU - Hood,Alan W.

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AB - Aims. In this paper we study the effects of a toroidal magnetic flux tube emerging into a magnetized corona, with an emphasis on large-scale eruptions. The orientation of the fields is such that the two flux systems are almost antiparallel when they meet.Methods. We follow the dynamic evolution of the system by solving the 3D MHD equations using a Lagrangian remap scheme.Results. Multiple eruptions are found to occur. The physics of the trigger mechanisms is discussed and related to well-known eruption models.

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MacTaggart D, Hood AW. Multiple eruptions from magnetic flux emergence. Astronomy and Astrophysics. 2009 Dec;508(1):445-449. Available from, DOI: 10.1051/0004-6361/200913197