The coronae of solarlike stars

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The coronae of solar-like stars
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Leandro Jesus Boris Gudiksen Mats
CarlssonITA UiO
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Sun vs. other stars
SOHO EIT 195
Betelgeuse M2, 430 ly
TRACE
SST
Procyon F5, 11 ly
STEREO
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Modelling stellar coronae _ main steps
Sample of nice solar-like stars (spectral types
F, G, K) Spectroscopic observations in order to
get the velocity field parameters, used for input
in the solar model Magnetic field free
parameter Reproduction of the observed UV and
X-Ray spectrum using models Analysis of the
distribution and amplitude of stellar magnetic
fields
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Modelling stellar coronae _ going further
Progressing to more complicated stars
Including different initial atmospheres
Expansion of the investigated parameter space
..
In the end we will try to answer questions
about the magnetic field structure of the stars
and to establish a connection with the X-rays
emitted from the upper atmosphere, and to see the
effects on their coronae.