Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21710309d&link_type=abstract
American Astronomical Society, AAS Meeting #217, #103.09; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astrophysics
Scientific paper
I present the status and results from an ongoing project to use 800 hours of the Spitzer SpaceTelescope to gather near-infrared photometric measurements of transiting extrasolar planet candidates detected by the Kepler Mission.
By combining occultation measurements of the reflected starlight in the optical with estimates of the thermal emission in the near-infrared, we are able to constrain the energy budget of these planets and compare such constraints to those for the Solar system giant planets.
By comparing the light curves spanning times of primary transit for candidates observed with Kepler and Spitzer, we can exclude significant sources of astrophysical false positives resulting from blends (e.g. background eclipsing binaries) that mimic an exoplanetary signature in the Kepler bandpass. I show how our infrared observations can help to validate the planetary nature of several candidates with small radii, which could be rocky in composition.
Desert Jean-Michel
Kepler Science Team
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