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3D Morphology of CME-driven Shocks (work in progress) V. Ontiveros, A. Vourlidas, A. Thernisien.

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Presentation on theme: "3D Morphology of CME-driven Shocks (work in progress) V. Ontiveros, A. Vourlidas, A. Thernisien."— Presentation transcript:

1 3D Morphology of CME-driven Shocks (work in progress) V. Ontiveros, A. Vourlidas, A. Thernisien

2 STEREO SWG, Feb 2-5, 2009 http://secchi.nrl.navy.mil Modeling LASCO Shocks Ontiveros & Vourlidas 2009 Geometric shock model

3 STEREO SWG, Feb 2-5, 2009 http://secchi.nrl.navy.mil Modeling LASCO Shocks Ontiveros & Vourlidas 2009 Positional Information of CME Shock

4 STEREO SWG, Feb 2-5, 2009 http://secchi.nrl.navy.mil

5 STEREO SWG, Feb 2-5, 2009 http://secchi.nrl.navy.mil COR2-B COR2-A SECCHI Forward Modeling (CME + Shock) CME at W109 Shock at W109

6 STEREO SWG, Feb 2-5, 2009 http://secchi.nrl.navy.mil December 31, 2007 CME – Direction

7 STEREO SWG, Feb 2-5, 2009 http://secchi.nrl.navy.mil SECCHI Shock Modeling: 12/31/2007 Event

8 STEREO SWG, Feb 2-5, 2009 http://secchi.nrl.navy.mil SECCHI Forward Modeling (CME + Shock) COR2-B COR2-A

9 STEREO SWG, Feb 2-5, 2009 http://secchi.nrl.navy.mil COR2-B COR2-A SECCHI Forward Modeling (CME + Shock) CME at E93S15 h = 7.9 Rs Shock at E93S06 h = 8.5 Rs

10 STEREO SWG, Feb 2-5, 2009 http://secchi.nrl.navy.mil COR2-B COR2-A SECCHI Forward Modeling (CME + Shock) CME at E93S16 h = 10.6 Rs Shock at E93S01 h = 11.3 Rs

11 STEREO SWG, Feb 2-5, 2009 http://secchi.nrl.navy.mil COR2-B COR2-A SECCHI Forward Modeling (CME + Shock) CME at E93S18 h = 12.8 Rs Shock at E93S00 h = 13.1 Rs

12 STEREO SWG, Feb 2-5, 2009 http://secchi.nrl.navy.mil Asymmetric shock expansion? The large-scale Coronal Magnetic Field affects the shape/propagation of the white light shock. GONG / Synoptic Maps

13 STEREO SWG, Feb 2-5, 2009 http://secchi.nrl.navy.mil Conclusions We can estimate the 3D morphology of the shock using forward modeling We can derive direction, speed, size of the shock Some events show deviations from a symmetric shock shape. This points to influence of large scale magnetic field on the shock properties.

14 STEREO SWG, Feb 2-5, 2009 http://secchi.nrl.navy.mil SECCHI/COR2A streamer deflected CME-driven shock front compressed material LASCO: 1013 km/s COR2: 735 km/s

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