Notes on "impulsive SEPs"
See Rainer Schwenn's recent "Living Reviews"
article on this topic for a general reference.
This is a complicated subject, I think, because it really requires expert
knowledge from three fairly disjoint areas of research (in-situ
particles, solar activity, and the coronal magnetic field).
To my mind "impulsive SEPs" means the in-situ particle events
that don't have a clear [diffusive] shock morphology.
But we will see.
One main point of interest is that the "impulsive SEPs", including the
electron events, point back to compact sources near the base of the
corona.
What are these sources and how do they work?
Can we successfully trace the magnetic field that links the solar and
heliospheric domains?
What is the acceleration mechanism (a) of the electrons, and (b) of the
ions?
What are the mechanisms for 3He and Fe/O enrichment in the
SEPs?
What is the physics of the jet-like CMEs, and how are they related to
the X-ray jets??
Recent literature:
Klein, K.-L., "Energetic electrons in impulsive solar flares: radio
diagnostics," Adv. Space Res. 35, 175 (2005)
.pdf reprint
Nitta, N. V., Reames, D. V., DeRosa, M. L., Liu, Y., Yashiro, S., and
Gopalswamy, N., "Solar sources of impulsive solar energetic particle
events and their magnetic field connection to the Earth," ApJ 650, 438
(2006)
.pdf reprint
Pick, M. et al., "Solar source regions for 3-He-rich solar energetic
particle events identified using imaging radio, optical, and energetic
particle observations," ApJ 648, 1247 (2006)
.pdf reprint
Schwenn, R., "Space weather: the solar perspective, Section 4.1"
link
Wang, Y.-M. et al., "Coronal holes, jets, and the origin of
3He-rich particle events," ApJ 639, 495 (2006).
ADS
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.pdf
HSH October 26, 2006