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David Berardo and Andrew Cumming 2017 ApJL 846 L17

Gas-giant planets that form via a hot-start model (in which runaway accretion forms a hot shock on the surface of the planet) are shown to develop a radiative rather than a convective interior.

Arieh Königl et al 2017 ApJL 846 L13

Dynamically isolated, Earth-size planets with orbital periods of ~1 day could represent the remnant rocky cores of giant planets that arrived at the stellar vicinity on high-eccentricity orbits.

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