Science and Technology Production
Congress
Authorship
VILLARREAL D'ANGELO, CAROLINA SUSANA
;
Vidotto, Aline
;
Esquivel, Alejandro
;
Koskinen, Tommi T.
;
Fossati, Luca
Date
2020
Publishing House and Editing Place
Cambridge University Press
ISSN
1743-9213
Summary
Information provided by the agent in
SIGEVA
The growth of spectroscopic observations of exoplanetary systems allows the possi- bility of testing theoretical models and studying the interaction that exoplanetary atmospheres have with the wind and the energetic photons from the star. In this work, we present a set of numerical 3D simulations of HD 209458b for which spectral lines observations of their evapo- rative atmosphere are available. The different simulations aim to reproduce different scenarios for the star-planet interaction. With...
The growth of spectroscopic observations of exoplanetary systems allows the possi- bility of testing theoretical models and studying the interaction that exoplanetary atmospheres have with the wind and the energetic photons from the star. In this work, we present a set of numerical 3D simulations of HD 209458b for which spectral lines observations of their evapo- rative atmosphere are available. The different simulations aim to reproduce different scenarios for the star-planet interaction. With our models, we reconstruct the Lyα line during transit and compare with observations. The results allows us to analyse the shape of the line profile under these different scenarios and the comparison with the observations suggest that HD209458b may have a magnetic field off less than 1 G. We also explore the behaviour of the magnesium lines for models with and without magnetic fields.
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Key Words
outflowsstars: winds,stars: planetary systems,stars: individual, HD209458