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Home > Seminars and Workshops > Past seminars, PhD & HDR defense > 2009 > Séminaires 2009 > Le jeudi 9 avril 2009 à 11h

Le jeudi 9 avril 2009 à 11h

Andreas Kieling SSL Berkeley

Jeudi 9 avril à 11h

Palaiseau bibliothèque du LPP

Alfvén Waves and Their Roles in the Dynamics of the Earth’s Magnetotail

The Earth’s magnetotail is an extremely complex system which—energized
by the solar wind—displays many phenomena, and Alfvén waves are
essential to its dynamics. While Alfvén waves were first predicted in
the early 1940’s and ample observations were later made with rockets and
low-altitude satellites, observational evidence of Alfvén waves in
different regions of the extended magnetotail has been sparse until the
beginning of the new millennium. Here I provide a phenomenological
overview of Alfvén waves in the magnetotail organized by
region—plasmasphere, central plasma sheet, plasma sheet boundary layer,
tail lobes, and reconnection region—with an emphasis on spacecraft
observations reported in the new millennium that have advanced our
understanding concerning the roles of Alfvén waves in the dynamics of
the magnetotail. A brief discussion of the coupling of magnetotail
Alfvén waves and the low-altitude auroral zone is also included.
(Keiling, A., Alfvén Waves and Their Roles in the Dynamics of the
Earth’s Magnetotail: A Review, Space Sci. Rev., 142, 73-156,
doi:10.1007/s11214-008-9463-8, 2009)


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Tutelles : CNRS Ecole Polytechnique Sorbonne Université Université Paris Sud Observatoire de Paris Convention : CEA
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