EPJ Web of Conferences
Volume 16, 2011Research, Science and Technology of Brown Dwarfs and Exoplanets: Proceedings of an International Conference held in Shangai on Occasion of a Total Eclipse of the Sun
|Number of page(s)||6|
|Published online||18 July 2011|
Spectral and polarimetric characterization of gazeous and telluric planets with SEE COAST
1 Observatoire de Paris, Meudon, France
2 JPL/CalTech, Pasadena, CA, USA
3 Department of Physics and Astronomy, UCL, London, UK
4 SRON, Utrecht, The Netherlands
5 CEA/SAp, Saclay, France
6 Centre for Astrophysics Research, University of Hertfordshire, Hatfield, UK
7 Utrecht University, The Netherlands
8 Laboratoire d’Astrophysique de Grenoble, France
9 Observatoire de Genève, Switzerland
10 Laboratoire d’Astrophysique de Marseille, Marseille, France
11 Centro de Astrobiología, Madrid, Spain
12 Astrium, France
a e-mail: email@example.com
SEE COAST stands for Super Earth Explorer – Coronagraphic Off-Axis Space Telescope. The concept was initially proposed to ESA for Cosmic Vision. None of the direct detection exoplanet proposals were selected in 2007 and we are now pursuing our efforts to consolidate the astrophysical program and the technical developments for the next call for proposal. The prime objective of SEE COAST is to contribute to the understanding of the formation and evolution of planetary systems. Exploring the diversity of these objects is therefore the main driver to define the instrumentation. In the next decade the improvement of radial velocity instruments and obviously temporal coverage will provide us with a large numbers of long period giants as well as telluric planets, namely Super Earths. Obtaining the spectral and polarimetric signatures of these objects in the visible range to measure atmospheric parameters (molecular composition, clouds, soils, …) will be unique and with important scientific returns. A space mission complementary to near IR instruments like SPHERE, GPI, JWST and later ELTs for the full characterization of giants and Super Earths is a first secure step towards the longer term goal that is the characterization of telluric planets with mass and atmosphere comparable to that of the Earth. An overview of the astrophysical motivation and the trade-off that lead to a simple integrated concept of a space-based high contrast imaging instrument are given here.
© Owned by the authors, published by EDP Sciences, 2011
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