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Characterization of rocky exoplanets from their infrared phase curve

Published online by Cambridge University Press:  10 November 2011

Anne-Sophie Maurin ,
Franck Selsis ,
Franck Hersant  and
Marco Delbò
Anne-Sophie Maurin
Affiliation:
Laboratoire d'Astrophysique de Bordeaux (Université Bordeaux 1), B.P. 89, 33271 Floirac Cedex, France email: [email protected]
Franck Selsis
Affiliation:
Laboratoire d'Astrophysique de Bordeaux (Université Bordeaux 1), B.P. 89, 33271 Floirac Cedex, France email: [email protected]
Franck Hersant
Affiliation:
Laboratoire d'Astrophysique de Bordeaux (Université Bordeaux 1), B.P. 89, 33271 Floirac Cedex, France email: [email protected]
Marco Delbò
Affiliation:
Laboratoire Cassiopée, Observatoire de la Côte d'Azur, B.P. 4229, 06034 Nice Cedex 4, France
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Abstract

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During the last few years, observations have yielded an abundant population of short-period planets under 15 Earth masses. Among those, hot terrestrial exoplanets represent a key population to study the survival of dense atmospheres close to their parent star. Thermal emission from exoplanets orbiting low-mass stars will be observable with the next generation of infrared telescopes, in particular the JWST. In order to constrain planetary and atmospheric properties, we have developed models to simulate the variation of the infrared emission along the path of the orbit (IR phase curve) for both airless planets and planets with dense atmospheres. Here, we focus on airless planets and present preliminary results on the influence of orbital elements, planet rotation, surface properties and observation geometry. Then, using simulated noisy phase curves, we test the retrieval of planets' properties and identify the degeneracies.

Keywords

methods: numericalinfrared: planetary systems
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S276: The Astrophysics of Planetary Systems: Formation, Structure, and Dynamical Evolution , October 2010 , pp. 485 - 486
Copyright
Copyright © International Astronomical Union 2011

References

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