6
July 14, 2005
2005 SHINE Workshop
Keauhou, Hawaii, USA
l
Possible mechanisms suggested by Ellison & Ramaty
(1985)
l
shock thickness
~
κ
/u
energy is too low
l
drift over shock width
rollover
at ~ 100 MeV/
Q
l
finite time for shock acceleration
considered here
l
(see also: Klecker
et al. 1981; Lee 1983)
Why
do
ESP
spectra roll over
at ~ 0.1 - 10 MeV/n?
(
data
- see also: Gosling et
al. 1981; van Nes et al. 1985)