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Diversity among other worlds: characterization of exoplanets by direct detection
- Source :
- NASA Astrophysics Data System
- Publication Year :
- 2008
- Publisher :
- arXiv, 2008.
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Abstract
- The physical characterization of exoplanets will require to take spectra at several orbital positions. For that purpose, a direct imaging capability is necessary. Direct imaging requires an efficient stellar suppression mechanism, associated with an ultrasmooth telescope. We show that before future large space missions (interferometer, 4-8 m class coronograph, external occulter or Fresnel imager), direct imaging of giant planets and close-by super-Earth are at the cross-road of a high scientific interest and a reasonable feasibility. The scientific interest lies in the fact that super-Earths share common geophysical attributes with Earths. They already begin to be detected by radial velocity (RV) and, together with giant planets, they have a larger area than Earths, making them detectable with a 1.5-2 m class telescope in reflected light. We propose such a (space) telescope be a first step before large direct imaging missions.<br />Comment: Update of a White Paper submitted to the ESA ExoPlanet Roadmap Advisory Team
Details
- Database :
- OpenAIRE
- Journal :
- NASA Astrophysics Data System
- Accession number :
- edsair.doi.dedup.....7fec852a4eddfb22fd2c1ef5c60acd1a
- Full Text :
- https://doi.org/10.48550/arxiv.0811.2496