ICRC2015

Session

Parallel SH 08 Theory

5 Aug 2015, 11:00

World Forum

135. Response of atmospheric ground level temperatures to changes in the total solar irradiance

Prof. Anatoly Erlykin (P.N.Lebedev Physical Institute, Moscow, Russia)

05/08/2015, 11:00

SH-TH

Oral contribution

The attribution of part of ‘global warming’ to changes in the total solar irradiance (TSI) is an important topic which is not, yet, fully understood. Here, we examine the TSI induced temperature (T) changes on a variety of time scales, from one day to centuries and beyond, using a variety of assumptions. Also considered is the latitude variation of the T-TSI correlations, where it appears...

222. Effects of dispersive wave modes on charged particles transport

Cedric Schreiner (North-West University)

05/08/2015, 11:15

SH-TH

Oral contribution

The transport of charged particles in the heliosphere and the interstellar medium is governed by the interaction of particles and magnetic irregularities. For the transport of protons a rather simple model using a linear Alfven wave spectrum which follows the Kolmogorov distribution usualy yields good results. Even magnetostatic spectra may be used. For the case of electron transport,...

1080. Simulation of energetic particle interaction with shock waves in a focused transport model

Dr Yulia Kartavykh (Julius-Maximilians Universität Würzburg, Würzburg, Germany)

05/08/2015, 11:30

SH-TH

Oral contribution

We use numerical solutions of the focused transport equation to study the evolution of the pitch-angle dependent distribution function of protons in the vicinity of parallel and oblique shock waves and compare the results with predictions of diffusive shock acceleration theory. We then consider the case that a seed population of protons is injected close to the Sun simultaneously with a...

1128. New Method for Determination of Diffusion Coefficients in Turbulent Plasmas

Alex Ivascenko (North-West University)

05/08/2015, 11:45

SH-TH

Oral contribution

The transport of charged particles in turbulent magnetic fields is a topic of great interest in astrophysics, since our ability to successfully use cosmic rays as astronomic messengers depends on our understanding of the transport processes. One of the primary effects is the scattering of particles on magnetic irregularities leading in the first instance to a change in the pitch-angle...

1139. Particle acceleration and foreshock evolution in heliospheric shocks from self-consistent Monte Carlo simulations

Dr Alexandr Afanasiev (University of Turku, Finland)

05/08/2015, 12:00

SH-TH

Oral contribution

Self–consistent Monte Carlo simulations have been a fruitful approach to model particle acceleration dynamically coupled with the foreshock development in quasi-parallel shocks. Our group has developed the global Coronal Shock Acceleration (CSA) Monte Carlo simulation capable of modeling self-consistent shock acceleration from the inner corona to the solar wind. However, in the currently used...

1182. Helical Ion Beams from Fluctuating Shock Structures

Urs Ganse (University of Helsinki)

05/08/2015, 12:15

SH-TH

Oral contribution

Heliospheric shocks are well-known accelerators of particles, responsible for the creation of gradual solar energetic particle events. While the fact that particle beams are formed in shock interactions is firmly established, many open questions remain in regard to the microphysics of the acceleration process and the shape of the resulting beam distribution. The standard analytic...