m1 中間発表 長島薫 2005/10/17
DESCRIPTION
M1 中間発表 長島薫 2005/10/17. これまでの研究のまとめ: 「 太陽フレアのリコネクションレートの統計解析 」 今後の研究. 1 太陽フレアのリコネクションレートの統計解析. introduction 解析方法とその結果 議論 まとめ. magnetic reconnection. 磁気張力で加速. 電流シート. 磁場のエネルギー ⇒ プラズマのエネルギー. inflow. リコネクション前. リコネクション後. outflow. - PowerPoint PPT PresentationTRANSCRIPT
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M1
2005/10/17
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1introduction
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magnetic reconnection inflowoutflow
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reconnection rate MASweet-Parker model
Petschek model
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Dere 1996,1996-2005 MA0.001-0.1
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(1/2)
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(2/2)reconnection rate MA 0.001-0.1
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MAMA
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Contentsintroduction
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2000GOES C6 classGOES X Yohkoh/SXT X LSOHO/MDI magnetogram
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event selection2000eventGOES class C6.0 Yohkoh/SXTBedisk center 800
C6 482
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flareinflow
flare L vinflowflare :GOES.inflowAlfven MA =
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L X classM class C6-C9vinflow=100km/svinflow=30km/svinflow=10km/svinflow=3km/s
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Alfven
~ 10^{-15} g/ccinflowAlfven MA =
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method1MDImagnetogramBph
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BphX classM class C6-C9
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method2GOES0.5-41-8fluxEM
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BeqX classM class C6-C9Beq
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flareLBcorvinflow,vA MAinflowAlfven MA =
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(method1)
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(method2)
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Bscaling law
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BX classM class C6-C9
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B2000 November 24 15:13 X2.3 flare Gline-of-sight GGPotential fieldMAGPACK2Sakurai 1982
B100/244 0.4magnetogram
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B100G481G2000 November 24 15:13 X2.3 flare244GB100/244 0.4MAGPACK2(Sakurai 1982)potential fieldB=0.3
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scaling law MHDLBTscaling relation Yokoyama & Shibata 1998, Shibata & Yokoyama 1999
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scaling law
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2000 July 14 13:52 M3.7 flare
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2000 July 14 13:52 M3.7 flare
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Spitzer(fitting)Petschek modelX classM class C6-C9method 1 Reynolds
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MAPetschek modelMAPetschek modelReynolds (-0.8c.f. Sweet-Parker model : -0.5)ReynoldsRmSpitzerMAPetschek modelRmSpitzer
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12000
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SVSTLaPalmamain reference: Shimizu et al. 2002ApJ Photospheric magnetic activities responsible for soft X-ray pointlike microflares. I. Identifications of associated photospheric/chromospheric activities
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flareinflow
flare L4 Vinflow
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GOES L
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GOES
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GOESBph
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GOESBeq
FINAL/figures/tL.epsFINAL/figures2/tBph.epsFINAL/figures2/tBeq.epsFINAL/figures2/clMA_m1.epsANA/FINAL/figures2/clMA_m2.epsFINAL/figure2/Rm_MA_petschek_lf.eps
Solar-Bpoint like microflare EFShimizu et al. 2002LaPalmamagnetogram?