Exomagnetospheres and their interaction with the stellar wind

Details Exomagnetospheres and their interaction with the stellar wind Exomagnetospheres and their interaction with the stellar wind

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja......324g&link_type=abstract

EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #324

Physics

Scientific paper

The majority of the solar planets is magnetized. Their magnetospheres are shaped by the properties of the internal magnetic field and the interaction with the solar wind. Extrasolar giant planets with relatively small orbital radii are exposed to the stellar wind in much stronger way. The expected magnetospheric parameters are studied. Attention in turned to a relatively small rotation period as giant planets on close-in orbits are believed to be gravitationally locked to the star. Several estimations of the magnetization of such gravitationally locked exoplanets are discussed. The penetration of the stellar wind to certain exomagnetospheric regions may drive a cyclotron instability. Powerful nonthermal radio emissions are expected. State-of-the-art instrumentation incorporated in huge ground-based radio telescopes may be able to discover these radio signatures in the near future.

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