On The Relative Sizes of Planets Within Kepler Multiple Candidate Systems
作者： David R. Ciardi , Daniel C. Fabrycky , Darin Ragozzine , Eric B. Ford , Jason F. Rowe
DOI: 10.1088/0004-637X/763/1/41
关键词: Kepler-69c 、 Astronomy 、 Terrestrial planet 、 Double planet 、 Rogue planet 、 Pulsar planet 、 Planet 、 Planetary migration 、 Astrophysics 、 Physics 、 Fifth planet
摘要: We present a study of the relative sizes planets within multiple candidate systems discovered with $Kepler$ mission. have compared size each planet to every other given planetary system after correcting sample for detection and geometric biases. find that planet-pairs which one or both objects is approximately Neptune-sized larger, larger most often longer period. No such size--location correlation seen pairs when are smaller than Neptune. Specifically, if at least in planet-pair has radius $\gtrsim 3R_\oplus$, $68\pm 6%$ inner outer planet, while no preferred sequential ordering observed pair $\lesssim3 R_\oplus$.
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