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W38

The Oct-Nov 2003 Halloween Events. 5 large solar particle events. X28 !. Record x-ray event. W38. W56. E08. W02. W83. GOES-11 Data. SOHO/LASCO: >50 CMEs in ~2 weeks. 2000 km/s solar wind! (ACE). Mewaldt et al. 2005. Proton Fluence Spectra

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W38

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  1. The Oct-Nov 2003 Halloween Events 5 large solar particle events X28 ! Record x-ray event W38 W56 E08 W02 W83 GOES-11 Data SOHO/LASCO: >50 CMEs in ~2 weeks 2000 km/s solar wind! (ACE) Mewaldt et al. 2005

  2. Proton Fluence Spectra from the July 14, 2000 and October 28, 2003 Events Mewaldt et al. 2012

  3. Mewaldt et al. 2005

  4. Cohen et al. (2005) found that all species from Ne to Fe could be remarkably well represented by shifting the O spectrum in energy and intensity. O Fe Cohen et al. (2005)

  5. Q/M-Dependent Acceleration: The location of spectral breaks depends on the charge-to-mass ratio (Q/M) of the ion. This explains why large SEP events are Fe-poor for E > 10 MeV/nuc H He C Eo = 30 Break Energy (MeV/nuc) N O Ne Fe Theory by Li et al. 2005 Mg Si Eo = 3.5 Mewaldt et al. 2005

  6. Cutoff Dst Leske et al. 2001

  7. Cohen et al. 2005

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