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Revised Exoplanet Radii and Habitability Using Gaia Data Release 2

Wittenmyer, Robert A.; Horner, Jonathan; Wright, Duncan J. +4 more

Accurate stellar properties are crucial for determining exoplanet characteristics. Gaia DR2 presents revised distances, luminosities, and radii for 1.6 billion stars. Here, we report the calculation of revised radii and densities for 320 non-Kepler exoplanets using this data and present updated calculations of the incident flux received by 690 kno…