TP4
PROF. DR. YURI LITVINENKO
Prof. Dr. Yuri Litvinenko from the University of Waikato, New Zealand is a guest of Prof. Dr. Reinhard Schlickeiser (TP IV). He will give a talk on "Regular and diffusive photospheric flux cancellation" as part of the seminar "Space and Astrophysics" on Wednesday, 12.11.2014, 10:15 am in NB 7/67. Interested parties are cordially invited!
Abstract: Photospheric flux cancellation on the Sun is considered. Observations imply that cancellation can be a diffusive rather than regular process. A criterion is derived, which quantifies the parameter range in which diffusive photospheric cancellation should occur. Regular cancellation models are shown to give a quantitatively accurate description of photospheric cancellation. Application of the results to large-scale dispersal of the photospheric magnetic flux is discussed.