VizieR Online Data Catalog: Effect of close companions on exoplanetary radii (Teske+, 2018)

Fulton et al. (2017, J/AJ/154/109, hereafter F17) compared their sample to the Furlan et al. (2017, J/AJ/153/71) high-resolution imaging catalog, and found no significant change to their observed planet radius distribution by removing KOI hosts with known companions or large dilution corrections. Ultimately they chose not to filter their catalog using high-resolution imaging results. We want to answer the question, how do stellar companions affect the bimodal observed exoplanet radius distribution found in F17? For completeness, we investigate the effect of both detected and undetected companions. To account for the effect of detected companions, we cross-matched the Kepler host star sample with high-resolution imaging observations cataloged by Furlan et al. (2017, J/AJ/153/71) and Ziegler et al. (2018AJ....156...83Z) and applied average radius correction factors calculated as in Furlan et al. (2017, J/AJ/153/71). To account for the effect of undetected companions, we use a prescription modified from Ciardi et al. (2015ApJ...805...16C) to calculate updated radius correction factors, and applied these values.

(2 data files).