The K2-138 system: A near-resonant chain of five sub-Neptune planets discovered by citizen scientists

K2-138 is a moderately bright (V = 12.2, K = 10.3) main sequence K-star observed in Campaign 12 of the NASA K2 mission. It hosts five small (1.6-3.3R_Earth) transiting planets in a compact architecture. The periods of the five planets are 2.35 d, 3.56 d, 5.40 d, 8.26 d, and 12.76 d, forming an unbro...

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Bibliographic Details
Main Authors:	Christiansen, J, Crossfield, I, Barentsen, G, Lintott, C, Barclay, T, Simmons, B, Petigura, E, Schlieder, J, Dressing, C, Vanderburg, A, Allen, C, McMaster, A, Miller, G, Veldthuis, M, Allen, S, Wolfenbarger, Z, Cox, B, Zemiro, J, Howard, A, Livingston, J, Sinukoff, E, Catron, T, Grey, A, Kusch, J, Terentev, I, Vales, M, Kristiansen, M
Format:	Journal article
Published:	Institute of Physics 2018

The K2-138 system: A near-resonant chain of five sub-Neptune planets discovered by citizen scientists

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