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Spitzer Observations of Exoplanets Discovered with The Kepler K2 Mission

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arxiv 1603.01934 v1 pith:JIK2DDNN submitted 2016-03-07 astro-ph.EP

Charles Beichman , John Livingston , Michael Werner , Varoujan Gorjian , Jessica Krick , Katherine Deck , Heather Knutson , Ian Wong
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Erik A. Petigura Jessie Christiansen David Ciardi Thomas P. Greene Joshua E. Schlieder Mike Line Ian Crossfield Andrew Howard Evan Sinukoff
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classification astro-ph.EP
keywords spitzerktwoobservationsdiscoveredepichostskeplermission
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We have used the {\it Spitzer Space Telescope} to observe two transiting planetary systems orbiting low mass stars discovered in the \Kepler \Ktwo mission. The system K2-3 (EPIC 201367065) hosts three planets while EPIC 202083828 (K2-26) hosts a single planet. Observations of all four objects in these two systems confirm and refine the orbital and physical parameters of the planets. The refined orbital information and more precise planet radii possible with \Spitzer will be critical for future observations of these and other \Ktwo targets. For K2-3b we find marginally significant evidence for a Transit Timing Variation between the \Ktwo and \Spitzer\ epochs.

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