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Open Field Structure Associated with a Solar Eruption

Open Field Structure Associated with a Solar Eruption

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Open Field Structure Associated with a Solar Eruption

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  1. Open Field Structure Associated with a Solar Eruption 봉수찬, 문용재, 조경석, 김연한, 박영득 한국천문연구원

  2. Solar Eruption • Explosive event ← catastrophic removal of the downward magnetic tension

  3. Break-Out Model • Antiochos et al. (1999) • Sheared arcade • Reconnection above the filament channel

  4. 1998-03-22 Event • C2EIT_19980322 • 2-6 Rsun / white light • C1_19980322 • 1.1-2.5 Rsun / FeXIV (~2 MK) • NoRH_19980322 • 0-1.5 Rsun / mw (> 10kK) • SXT_19980322 • 0-1.5 Rsun / soft X-ray (>1 MK)

  5. Chronicle • 03-22 • 18:54-22:15 X-ray (SXT) loop expansion start • 23:24-23:57 FeXIV (C1) loop ejection start • 03-23 • 00:04-00:12 X-ray (SXT) brightening start • 00:06-00:16 X-ray (SXT) ejection (V~100km/s) • 00:11-00:21 Mw (NoRH) brightening start • 00:21-00:52 FeXIV (C1) field open • 00:51 Mw (NoRH) brightening max • 01:10 X-ray (SXT) brightening max • 00:52-10:00 FeXIV (C1) open field disappear

  6. - + - Connectivity After the Event

  7. - - + + - - Connectivity During the Event

  8. Conclusion • Field opening was directly observed • Magnetic configuration supports break-out model • X-ray loop expansion precedes FeXIV loop ejection • Eruption started from the below