The Analysis of Solar Energetic Particles

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Resume‣ Energy spectra are strongly affected byparticle-wave interaction leading to Alfvénwave amplification and fluxes distortion.‣ The “time-of-maximum” spectrum in thelarge SEP events seems not to reflectacceleration on the Sun.‣ The first to arrive most energetic particlescan give an insight in the solar processes.
Taken fromJ.-I. Sakai andC. de Jager,1996Stochastic acceleration – diffusion in themomentum space. dE/dt ∝ (v c /v) 2 , where E and vare energy and velocity of the particle and v c isvelocity of magnetic compression.Model of the flare(Aschwandenet al.,1995): reconnection inthe X-point X point is followedby a downwarddirected shocks andMHD turbulence.(Selective He 3acceleration may occuhere) . Timing is sec –min, , E is up to GeV,spectrum is a powerlaw (Bessel function folower energy).
Page 1 and 2: WP13000: Solar Particle Emission An
Page 3 and 4: The Analysis of Solar Energetic Par
Page 5 and 6: Marisa Storini - IFSI/INAF Athens -
Page 13 and 14: Energy spectrum of solarcosmic rays
Page 15 and 16: Is it possible to make anyconclusio
Page 17 and 18: Energy spectrum in the maximum of t
Page 19 and 20: Acceleration mechanisms‣ Shock ac
Page 21 and 22: dJ22−(σ+2) /(σ−1)∝(E+2Em 0c
Page 23 and 24: Panel (a) shows superposed intensit
Page 25 and 26: Proton intensity is shown at the sh
Page 27: Left: Wind/EPACT hourly averaged ab
Page 31 and 32: Particle acceleration in the DC ele
Page 33 and 34: Fast-drift bursts (type III) can be
Page 35 and 36: GLE 20 January 2005Contribution at
Page 38 and 39: Vashenyuk et al. 200520 January, 20
Page 40 and 41: Direction to the sourceof solar pro
Page 42 and 43: 1.E+14Dif. spectra of protons20 Jan
Page 44 and 45: 20 January 2005.Numerical solutiono
Page 46 and 47: Timing of 20 Jan. 2005X7.1/2B, N12W
Page 48 and 49: Gopalswamyet al. (29 th ICRC,)Left:
Page 50 and 51: Height, solar radii abovephotospher
Page 52 and 53: 20 January 2005. Resume II‣ SEPs
Page 54 and 55: CONCLUSION‣ Energy spectra of SEP

The Analysis of Solar Energetic Particles

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