VizieR Online Data Catalog: California-Kepler Survey. VII. Planet radius gap (Fulton+, 2018)

We began with the sample of planet host stars in the California-Kepler Survey (CKS) sample. The CKS sample selection, spectroscopic observations, and spectroscopic analysis are described in detail in Petigura et al. (2017AJ....154..107P). In brief, the sample was initially constructed by selecting all Kepler Objects of Interest (KOIs) brighter than Kp=14.2 mag. A KOI is a Kepler target star that showed periodic photometric dimmings indicative of planet transits. However, not all KOIs have received the necessary follow-up attention needed to confirm the planets. Over the course of the CKS project, we included additional targets to cover different planet populations, including multi-candidate hosts, ultra-short-period candidates, and habitable-zone candidates. We cross-matched the CKS sample with the Gaia DR2 catalog (Cat. I/345) by querying all Gaia sources within 1 arcsec of the KIC coordinates. In rare cases, Gaia detected more than one source within 1 arcsec, and we selected the source with the smallest difference between G and Kp magnitudes. We cross-matched 1257 targets in this way.

(3 data files).