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Atmospheric Characterization of Cold Exoplanets Using a 1.5-m Space Coronagraph

Published online by Cambridge University Press:  29 April 2014

Anne-Lise Maire
Affiliation:
LESIA, Obs. Paris/CNRS/Univ. Paris 6/Univ. Paris 7, 92195 Meudon, France email: Anne-Lise.Maire@obspm.fr
Raphaël Galicher
Affiliation:
Herzberg Institute of Astrophysics, NRCC, Victoria, BC V9E 2E7, Canada
Anthony Boccaletti
Affiliation:
LESIA, Obs. Paris/CNRS/Univ. Paris 6/Univ. Paris 7, 92195 Meudon, France email: Anne-Lise.Maire@obspm.fr
Pierre Baudoz
Affiliation:
LESIA, Obs. Paris/CNRS/Univ. Paris 6/Univ. Paris 7, 92195 Meudon, France email: Anne-Lise.Maire@obspm.fr
Jean Schneider
Affiliation:
LUTH, Obs. Paris/CNRS/Univ. Paris 7, 92195 Meudon, France
Kerri Cahoy
Affiliation:
Dept. of Aeronautics and Astronautics, MIT, Cambridge, MA 02139, USA
Daphne Stam
Affiliation:
SRON, Utrecht, The Netherlands
Wesley Traub
Affiliation:
JPL, CalTech, Pasadena, CA 91109, USA
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Abstract

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We present numerical results of the science performance of the SPICES mission, which aims to characterize the spectro-polarimetric properties of cold exoplanets and circumstellar disks in the visible. We focus on the instrument ability to retrieve the spectral signatures of molecular species, clouds and surface of super-Earths in the habitable zone of solar-type stars. Considering realistic reflected planet spectra and instrument limitation, we show that SPICES could analyse the atmosphere and surface of a few super-Earths within 5 pc of the Sun.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2014 

References

Boccaletti, A., Schneider, J., Traub, W., et al. 2012, Exp. Astron., 34, 355CrossRefGoogle Scholar
Cahoy, K. L., Marley, M. S, & Fortney, J. J. 2010, ApJ, 724, 189CrossRefGoogle Scholar
Maire, A.-L., Galicher, R., Boccaletti, A., et al. 2012, A&A, 541, A83Google Scholar
Stam, D. 2008, A&A, 482, 989Google Scholar
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