Abstract
The scientific output of the proposed EChO mission (in terms of spectroscopic characterization of the atmospheres of transiting extrasolar planets) will be maximized by a careful selection of targets and by a detailed characterization of the main physical parameters (such as masses and radii) of both the planets and their stellar hosts. To achieve this aim, the availability of high-quality data from other space-borne and ground-based programs will play a crucial role. Here we identify and discuss the elements of the Gaia catalogue that will be of utmost relevance for the selection and characterization of transiting planet systems to be observed by the proposed EChO mission.
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Notes
A proxy for L routinely used in transiting systems parameters estimation when no direct distance estimate is available. See e.g. [10].
References
Bailer-Jones, C.A.L.: Determination of stellar parameters with GAIA. Ap&SS 280, 21 (2002)
Casertano, S., Lattanzi, M.G., Sozzetti, A., et al.: Double-blind test program for astrometric planet detection with Gaia. A&A 482, 699 (2008)
Charbonneau, D., et al.: A super-Earth transiting a nearby low-mass star. Nature 462, 891 (2009)
Jordi, C., et al.: Gaia broad band photometry. A&A 523, A48 (2010)
Lépine, S.: Nearby stars from the LSPM-North Proper-Motion catalog. I. Main-Sequence dwarfs and giants within 33 parsecs of the sun. AJ 130, 1680 (2005)
Lépine, S., Gaidos, E.: An all-sky catalog of bright M dwarfs. AJ 142, 138 (2011)
Lindegren, L.: Gaia: Astrometric performance and current status of the project. Proc. IAU Symp 261, 296 (2010)
Liu, C., et al.: The expected performance of stellar parametrization with Gaia spectrophotometry. MNRAS 426, 2463 (2012)
Seager, S., Deming, D.: Exoplanet atmospheres. ARA&A 48, 631 (2010)
Sozzetti, A., et al.: Improving stellar and planetary parameters of transiting planet systems: The case of TrES-2. ApJ 664, 1190 (2007)
Sozzetti, A., et al.: Astrometric detection of giant planets around nearby M dwarfs: the Gaia potential. MNRAS 437, 497 (2014)
Spada, F., et al.: The radius discrepancy in Low-mass stars: single versus binaries. ApJ 776, 87 (2013)
Yi, S.K., et al.: The Y 2 stellar evolutionary tracks. ApJS 144, 259 (2003)
Acknowledgments
This work has been funded in part by ASI under contract to INAF I/022/12/0 (EChO Mission - Assessment Phase). An anonymous reviewer provided useful comments that materially improved the manuscript.
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Sozzetti, A., Damasso, M. The gaia survey contribution to EChO target selection and characterization. Exp Astron 40, 595–600 (2015). https://doi.org/10.1007/s10686-014-9416-z
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DOI: https://doi.org/10.1007/s10686-014-9416-z