Guests Theoretical Physics IV- PD Dr. Fichtner

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09.01.2017 - Prof. Dr. Felix Spanier

Die bewährte Kooperation beim BMBF-Projekt "Astrophysical Processes in the Heliospheric Environment" von PD Dr. Horst Fichtner (Lehrstuhl für theoretische Physik IV) mit der North-West University, Campus Potchefstroom, in Südafrika führte zu einem Besuch von Prof. Dr. Felix Spanier um über neueste wissenschaftliche Ergebnisse zu sprechen. Er besuchte die RUB vom 09. - 16. Januar 2017.

 

 

 

 

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29.09.2016 - PROF. DR. YURI LITVINENKO

Vom 01. Dezember 2016 bis 28. Februar 2017 wird wieder Prof. Dr. Yuri Litvinenko als VIP zu Gast bei PD Dr. Horst Fichtner sein.

Subject: Theoretical models of cosmic-ray acceleration and transport


Abstract: The generation and transport of energetic cosmic-ray particles (electrons, protons, ions) is among the most important problems in modern astrophysics. When the particles propagate in the cosmos, they often interact with turbulent magnetic fields. The resulting complicated evolution of the cosmic-ray distribution can be mathematically described as a simpler diffusive process. The diffusion approximation and its generalisations have been employed for studying the generation and propagation of energetic particles in many astrophysical situations: in the atmosphere of the Sun, interplanetary space, and the interstellar medium.

The VIP grant will support a systematic investigation of unresolved issues of particle transport in astrophysics, with a focus on analytical and numerical modelling of diffusive particle transport. The areas of particular interest are as follows. (1) Rigorous derivation of the diffusion and telegraph approximations for cosmic-ray transport modelling, which quantifies their accuracy. (2) Development of new analytical and numerical methods for solving the equations governing the transport of solar and galactic cosmic rays. (3) Critical examination of possible mechanisms of fractional particle diffusion in the cosmos.

Foto: Copyright University of Waikato

further details VIP: Yuri Litvinenko / Horst Fichtner

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28.09.2016 - PROF. DR. SEAN OUGHTON

Vom 19. September bis 14. Oktober 2016 ist Herr Prof. Dr. Sean Oughton vom Department of Mathematics of The University of Waikato, New Zealand, zu Gast bei PD Dr. Horst Fichtner, um ein gemeinsames DFG-Projekt vorzubereiten.

link to Sean Oughton

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01.08.2016 - PROF. DR. STEFAN FERREIRA, DR. EUGENE ENGELBRECHT, M.SC. JAN-LOUIS RATH UND M.SC. LOURNES PRINSLOO

Vom 24.-29. Juli 2016 waren vier Besucher aus Südafrika bei PD Dr. Horst Fichtner und Dr. Klaus Scherer: Prof. Dr. Stefan Ferreira, Dr. Eugene Engelbrecht, M.Sc. Jan-Louis Rath und
M.Sc. Lournes Prinsloo, alle vom Center of Space Physics der North-West-University, 
Campus Potchefstroom, South Africa.

link to Center of Space Physics der North-West-University

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03.06.2016 - Prof. Dr. Potgieter

Am Lehrstuhl für theoretische Physik IV bei PD Dr. Horst Fichtner ist in der Zeit vom 03. - 06. Juni 2016 Prof. Dr. Potgieter von der North-West University, Campus Potchefstroom, in Südafrika. Das gemeinsame BMBF-Projekt "Astrophysical Processes in the Heliospheric Environment" ermöglicht den Austausch der Wissenschaftler.