ESA Guest Investigator
This is one of the five accepted Ulysses ESA Guest Investigator proposals which involves collaboration with the magnetometer team.
Study of the small-scale and large-scale structures of the heliospheric
magnetic field as measured by Ulysses, with particular emphasis on its
implications for charged particle transport
Dr. Geza Erdös
KFKI Budapest
Abstract
Measurements of energetic particle fluxes onboard Ulysses gave unexpected
results, in particular on the latitudinal extent of the recurrent variations
associated with corotating interaction regions,a nd on the latitudinal
gradients of cosmic rays. These observations stimulated modelling efforts
which, however, hinge on many parameters treated by the theories as unknown,
free constants. On the other hand, the Ulysses mission is scheduled to
provide us with high resolution magnetic field data, extending to high
solar latitude, and covering one complete solar cycle. The aim of this
guest investigator research program is to study mechanisms of charged particle
transport, including the values of the parallel and perpendicular mean free
path as can be determined from the actually measured magnetic field. The
magnetic field data will also be used to study field line mixing. The
program comprises analysis of the magnetic field data as well as theoretical
modelling in the context of, and also beyond, the so-called quasi-linear
theory. Results obtained in the polar regions will be compared to those
in the streamer belt.
Address
Konkoly Thege M. u. 29-33
H-1121 Budapest
Hungary
Email: erdos@rmki.kfki.hu
Tel:
Fax:
WWW: http://kfosun.rmki.kfki.hu/
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Last changed 29th May 1997 by Tim Horbury.