A data‐constrained three‐dimensional magnetohydrodynamic simulation model for a coronal mass ejection initiation. Issue 2 (20th February 2016)

• Record Type: Journal Article
• Authors: Wu, S. T.; Zhou, Yufen; Jiang, Chaowei; Feng, Xueshang; Wu, Chin‐Chun; Hu, Qiang
• Is Part Of: Journal of geophysical research. Volume 121:Issue 2(2016:Feb.)
• Page Start: 1009
• Page End: 1023
• Publication Date: 2016-02-20
• Subjects: magnetohydrodynamics (MHD) -- methods: numerical -- Sun: corona -- Sun: flux rope -- Sun: coronal mass ejections (CMEs) -- Sun: flares -- Sun: magnetic field; Magnetospheric physics -- Periodicals; Space environment -- Periodicals; Cosmic physics -- Periodicals; Planets -- Atmospheres -- Periodicals; Heliosphere (Astrophysics) -- Periodicals; Geophysics -- Periodicals; 523.01
• DOI: 10.1002/2015JA021615
• Languages: English
• ISSNs: 2169-9380

Abstract

Abstract: In this study, we present a three‐dimensional magnetohydrodynamic model based on an observed eruptive twisted flux rope (sigmoid) deduced from solar vector magnetograms. This model is a combination of our two very well tested MHD models: (i) data‐driven 3‐D magnetohydrodynamic (MHD) active region evolution (MHD‐DARE) model for the reconstruction of the observed flux rope and (ii) 3‐D MHD global coronal‐heliosphere evolution (MHD‐GCHE) model to track the propagation of the observed flux rope. The 6 September 2011, AR11283, event is used to test this model. First, the formation of the flux rope (sigmoid) from AR11283 is reproduced by the MHD‐DARE model with input from the measured vector magnetograms given by Solar Dynamics Observatory/Helioseismic and Magnetic Imager. Second, these results are used as the initial boundary condition for our MHD‐GCHE model for the initiation of a coronal mass ejection (CME) as observed. The model output indicates that the flux rope resulting from MHD‐DARE produces the physical properties of a CME, and the morphology resembles the observations made by STEREO/COR‐1. Key Points: The data‐driven 3‐D MHD model based on an observed vector magnetograms The analysis of the physical properties of a CME The morphology of the 3‐D simulation result resembles the observations made by STEREO/COR‐1