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Investigating Magnetic Reconnection and Helium Events from RHESSI Workshop 2005

This document summarizes findings from the RHESSI workshop held from June 8-11, 2005, focusing on magnetic reconnection phenomena. Key studies examine the significant He3 and heavy ion events observed on October 5, 2002, highlighting the He3/He4 ratio and Fe/O measurements. Various frequencies and instruments like RHESSI are analyzed, with observations of plasma dynamics, shock interactions, and the behavior of twisted flux tubes. The research offers insights into the mechanisms driving reconnection events in astrophysical contexts.

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Investigating Magnetic Reconnection and Helium Events from RHESSI Workshop 2005

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  1. Evidence for magnetic reconnection Rhessi-workshop 8-11 June 2005

  2. Rich He3 and heavy ion events 05 October 2002G. Mason, M. Pick, C. Tan • F N09-W64 • 0.4-0.6 MeV • He3/He4 0.63 ± 0.09 • Fe/O 1.77 ± 0.24

  3. 2002 0ctober 05 NRH 164 MHz RHESSI up to 50 keV

  4. 2002 October 05

  5. JUNE 02 2002,Pick, Démoulin, Krucker, Malandraki and Maia (Apj, June 1, 2005) RHESSI 25-50 keV 410 MHz 327 MHz Reconnection 236 MHz 164 MHz 1 GHz OSRA 100 MHz Magnetic reconnection behind A flux rope WAVES

  6. Moving and stationary sources M ~ 410 km/s

  7. Rhessi S M all frequencies

  8. XR, S and M correlated Current sheet ≤ 0.3 SR Assymetric (Zharkova, 2004) I B flux reconnection - + type II QP O O Ejection of a Twisted flux tube Still anchored B flux RX Shock stationary Stationary Reconnection Interaction with streamer Stops first interaction Reconnection with Surrounding medium starts to peal the erupting structure. M II III 10: 30 UT Shock 2 RS Loop front > 1.6 Rs E release

  9. 17 March 2002 M.Wang, Pick, Yan, Krucker

  10. 17 march 2002 + 600 km/s

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