Authors: Hilchenbach M., H. Sierks, B. Klecker, K. Bamert, and R.
Kallenbach
Reference: Proc. 10th Int. Solar Wind Conf., in press, 2003
Abstract:
Since the launch of the Solar and Heliospheric Observatory (SOHO)
on Dec. 2, 1995, the Suprathermal Time- Of-Flight (STOF) energetic
particle sensor of the Charge, Element and Isotope Analysis System
(CELIAS) has observed gradual and impulsive solar particle events
from solar activity cycle minimum to maximum. The instrument
CELIAS/STOF has the capability of detecting energetic ions and
determine the mass, energy and charge of each particle.
We report on the measurements of the detected energetic particle
events from 1996 to 2001, i.e. the velocity dispersion of energetic
He ions in the energy/charge range between 30 and 800 keV/nuc.
For energetic particle events we analyse the velocity dispersion
of the suprathermal He and O ions (78 and 43 events, resp.) and
estimate the onset time of the solar event and set limits on the
propagation length along the connecting magnetic field line.
mail=hilchenbach@linmpi.mpg.de