3-11 July 2007
Merida, Mexico
Mexico/General timezone
Home > Timetable > Session details
PDF | iCal

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
Type: Oral Session: SH 1.5, SH 1.6
Track: SH.1.6
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
Type: Oral Session: SH 1.5, SH 1.6
Track: SH.1.6
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
Type: Oral Session: SH 1.5, SH 1.6
Track: SH.1.5
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
Type: Oral Session: SH 1.5, SH 1.6
Track: SH.1.6
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
Type: Oral Session: SH 1.5, SH 1.6
Track: SH.1.6
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
Type: Oral Session: SH 1.5, SH 1.6
Track: SH.1.6
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
Type: Oral Session: SH 1.5, SH 1.6
Track: SH.1.6
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
Building timetable...