Can late-type active stars be explained by a dipole magnetic trap? |
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| Authors: | B.J. Kellett R. Bingham R.A. Cairns V. Tsikoudi |
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| Affiliation: | 1Space Science and Technology Department, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX;2Department of Physics and Applied Physics, University of Strathclyde, Glasgow G1 1XQ;3School of Mathematics &Statistics, University of St. Andrews, Fife KY16 9SS;4Laboratory of Astronomy, Department of Physics, University of Ioannina, Ioannina, Greece |
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| Abstract: | In this paper we review four different types of X-ray and/or radio observations of active late-type stars. We then consider if a single magnetic source configuration – a toroidal dipole magnetic trap – can possibly explain these various different observations. We conclude that, indeed, dipole magnetic confinement (similar to the magnetic configurations of the Earth's radiation belts and the case of Jupiter and the Io torus) can explain all the diverse observational data. We take this to be very strong observational support for this type of magnetic confinement scheme. We also consider that this magnetic configuration is only likely to be established and maintained in the most active stars. |
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| Keywords: | stars: activity stars: late-type stars: magnetic fields |
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