VizieR Online Data Catalog: A list of ~330000 stars Kepler missed (Wolniewicz+, 2021)

In this paper we have analyzed the Kepler mission's target selection function by using Gaia DR2 as the ground truth to characterize the ~500000 stars that Kepler could have observed, and compared this population to the sample of ~200000 stars that were selected for observations.

We started with a subset of 2.4million targets within the KIC that are located in the Kepler field of view, which we downloaded from the Mikulski Archive for Space Telescopes (MAST). As a first step, we cross-matched the KIC with Gaia DR2 to obtain Gaia information for each star in the KIC. To do this, we used the Centre de Donnees astronomiques de Strasbourg (CDS) cross-match.

We conducted a positional match with a matching radius of 5", because the astrometric offsets between the KIC and Gaia have not been well characterized. We removed duplicates by only selecting the Kepler and Gaia ID associated with the most similar magnitudes in the Kepler passband Kp and Gaia passband. We then extracted Gaia Re-normalized unit weight error (RUWE) values for all sources.

(1 data file).