3-11 July 2007
Merida, Mexico
Mexico/General timezone
- icrc2007@icrc2007.unam.mx
Support
SH 1.5, SH 1.6
Place
Location: Merida, Mexico
Room: Yucatan I (Fiesta Americana)
Date:
5 Jul 08:30 - 10:00
Conveners
-
- Dr. von Rosenvinge, Tycho (NASA/GSFC)
Timetable | Contribution List
Displaying 7
contributions
out of
7
Impulsive solar energetic particle (SEP) events often show a high e/p ratio and
over-abundance of He3. The underlying acceleration mechanism of particles (electrons
and ions) in these events is still unknown. One crucial step in advancing our
understanding of the acceleration process is to deduce precisely the injection time
of electrons and ions from the observed time-intensity profiles and p
... More
Presented by Dr. Gang LI
Normalized cumulative particle fluence plots are very useful for characterizing the
variability of interplanetary suprathermal and energetic particle fluxes on various
time scales. For some applications it is practicable to describe the deviations of
annual fluence plots from straight lines by a single parameter (the Kolmogorov or K
parameter), and then check the dependence of that parameter o
... More
Presented by Péter KIRÁLY
on
5/7/2007
at
14:06
Gradual solar energetic particle (SEP) events is a major space hazard. In these
events, energetic particles (protons and heavy ions) are accelerated at propagating
CME-driven shocks, reaching energies as high as ~1 GeV/nucleon. Understanding the
acceleration and transport of these particles in the inner heliosphere is an active
research in space physics. Observationally, a tremendous amount of
... More
Presented by Dr. Gang LI
Ulysses, the first spacecraft ever to fly over the poles of the Sun, plays a central
role in the Heliospheric Network, the international fleet of spacecraft to explore
the Sun and Heliosphere. In November 2006, Ulysses, began its passage over
the Sun’s south pole for the third time. Although like during the first polar
passes in 1994/1995 the Sun is again close to its activity minimum, a
... More
Presented by Dr. Olga MALANDRAKI
on
5/7/2007
at
14:42
Recently, the times from CME to onset, the rise times and durations of 20 MeV
proton events observed on the Wind spacecraft during 1998-2002 were
compared with ambient solar wind O+7/O+6 values to search for correlations
with solar-wind (SW) stream types. Here we compare the same three SEP
timescales with their associated SW components classified as high-speed
streams, slow wind, and tr
... More
Presented by Stephen KAHLER
on
5/7/2007
at
13:42
Based on numerical solutions of the focused transport equation we
study the question whether pitch angle diffusion coefficients calculated
from various suggested models for wave-particle interactions and different
assumptions about the nature of magnetic fluctuations in the solar wind can
lead to measurable differences in observables such as the rigidity
dependence of the mean free path and t
... More
Presented by W. DRÖGE
on
5/7/2007
at
13:54
In mid December 2006 several flares on the Sun occurred in rapid succession,
spawning several CMEs and bathing the Earth in multiple solar energetic
particle (SEP) events. One such SEP occurring on December 15th was observed
at the Earth just as an interplanetary CME (ICME) from a previous flare on
December 13th was transiting the Earth. Although solar wind observations
during this time
... More
Presented by Tamitha MULLIGAN
on
5/7/2007
at
14:18