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MAGNETIC ENERGY PARTITION BETWEEN THE CORONAL MASS EJECTION AND FLARE FROM AR 11283
Feng, L.1,2; Wiegelmann, T.2; Su, Y.3; Inhester, B.2; Li, Y. P.1; Sun, X. D.4; Gan, W. Q.1
2013-03-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume765Issue:1Pages:37-37
Corresponding AuthorFeng, L (reprint author), Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China. Email: wqgan@pmo.ac.cn
AbstractOn 2011 September 6, an X-class flare and a halo coronal mass ejection (CME) were observed from Earth erupting from the same active region AR 11283. The magnetic energy partition between them has been investigated. SDO/HMI vector magnetograms were used to obtain the coronal magnetic field using the nonlinear force-free field (NLFFF) extrapolation method. The free magnetic energies before and after the flare were calculated to estimate the released energy available to power the flare and the CME. For the flare energetics, thermal and nonthermal energies were derived using the RHESSI and GOES data. To obtain the radiative output, SDO/EVE data in the 0.1-37 nm waveband were utilized. We have reconstructed the three-dimensional (3D) periphery of the CME from the coronagraph images observed by STEREO-A, B, and SOHO. The mass calculations were then based on a more precise Thomson-scattering geometry. The subsequent estimate of the kinetic and potential energies of the CME took advantage of the more accurate mass, and the height and speed in a 3D frame. The released free magnetic energy resulting from the NLFFF model is about 6.4x10(31) erg, which has a possible upper limit of 1.8x10(32) erg. The thermal and nonthermal energies are lower than the radiative output of 2.2x10(31) erg from SDO/EVE for this event. The total radiation covering the whole solar spectrum is probably a few times larger. The sum of the kinetic and potential energy of the CME could go up to 6.5x10(31) erg. Therefore, the free energy is able to power the flare and the CME in AR 11283. Within the uncertainty, the flare and the CME may consume a similar amount of free energy.
KeywordSun: Coronal Mass Ejections (Cmes) Sun: Flares Sun: Magnetic Topology Sun: Uv Radiation Sun: X-Rays, Gamma Rays
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-637X/765/1/37
WOS KeywordACTIVE-REGION ; SOLAR-FLARES ; RHESSI ; ENERGETICS ; EVENTS ; STEREO ; FIELD ; RECONSTRUCTION ; IONIZATION ; VIEWPOINTS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000314957900037
Citation statistics
Cited Times:35[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/9854
Collection太阳高能及相关物理过程研究团组
Affiliation1.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Max Planck Inst Sonnensyst Forsch, D-37191 Katlenburg Lindau, Germany
3.Graz Univ, IGAM Kanzelhohe Observ, Inst Phys, A-8010 Graz, Austria
4.Stanford Univ, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA
Recommended Citation
GB/T 7714
Feng, L.,Wiegelmann, T.,Su, Y.,et al. MAGNETIC ENERGY PARTITION BETWEEN THE CORONAL MASS EJECTION AND FLARE FROM AR 11283[J]. ASTROPHYSICAL JOURNAL,2013,765(1):37-37.
APA Feng, L..,Wiegelmann, T..,Su, Y..,Inhester, B..,Li, Y. P..,...&Gan, W. Q..(2013).MAGNETIC ENERGY PARTITION BETWEEN THE CORONAL MASS EJECTION AND FLARE FROM AR 11283.ASTROPHYSICAL JOURNAL,765(1),37-37.
MLA Feng, L.,et al."MAGNETIC ENERGY PARTITION BETWEEN THE CORONAL MASS EJECTION AND FLARE FROM AR 11283".ASTROPHYSICAL JOURNAL 765.1(2013):37-37.
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