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.
@article{arxiv.1603.01934,
title = {Spitzer Observations of Exoplanets Discovered with The Kepler K2 Mission},
author = {Charles Beichman and John Livingston and Michael Werner and Varoujan Gorjian and Jessica Krick and Katherine Deck and Heather Knutson and Ian Wong and Erik A. Petigura and Jessie Christiansen and David Ciardi and Thomas P. Greene and Joshua E. Schlieder and Mike Line and Ian Crossfield and Andrew Howard and Evan Sinukoff},
journal= {arXiv preprint arXiv:1603.01934},
year = {2016}
}