Published August 10, 2013 | Version v1
Journal article Metadata-only

STABILITY AND DYNAMICS OF A FLUX ROPE FORMED VIA FLUX EMERGENCE INTO THE SOLAR ATMOSPHERE

Creators

  • 1. School of Space Research, Kyung Hee University, 1 Seocheon-dong, Giheung-gu, Yongin, Gyeonggi-do 446-701 (Korea, Republic of)
  • 2. Department of Astronomy and Space Science, School of Space Research, Kyung Hee University, 1 Seocheon-dong, Giheung-gu, Yongin, Gyeonggi-do 446-701 (Korea, Republic of)

Description

We study the stability and dynamics of a flux rope formed through the emergence of a twisted magnetic flux tube into the solar atmosphere. A three-dimensional magnetohydrodynamic simulation has been performed to investigate several key factors affecting the dynamics of the flux rope. The stability of the flux rope is examined by deriving the decay index of the coronal magnetic field surrounding the flux rope. We investigate a transition between the quasi-static and dynamic states of the flux rope through an analysis of the curvature and scale height of emerging magnetic field. A practical application of this analysis for global eruptions is also considered

Availability note (English)

Available from http://dx.doi.org/10.1088/0004-637X/773/1/21

Additional details

Identifiers

DOI
10.1088/0004-637X/773/1/21;

Publishing Information

Journal Title
Astrophysical Journal
Journal Volume
773
Journal Issue
1
Journal Page Range
[9 p.]
ISSN
0004-637X
CODEN
ASJOAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44094823
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
ERUPTION; MAGNETIC FIELDS; MAGNETIC FLUX; MAGNETOHYDRODYNAMICS; MASS; SCALE HEIGHT; SIMULATION; SOLAR ATMOSPHERE; STABILITY; SUN; THREE-DIMENSIONAL CALCULATIONS
Descriptors DEC
ATMOSPHERES; DIMENSIONS; FLUID MECHANICS; HEIGHT; HYDRODYNAMICS; MAIN SEQUENCE STARS; MECHANICS; STARS; STELLAR ATMOSPHERES