It takes two planets in resonance to tango around K2-146

25 Jul 2019Kristine W. F. LamJudith KorthKento MasudaSzilárd CsizmadiaPhilipp EigmüllerGuðmundur Kári StefánssonMichael EndlSimon AlbrechtRafael LuqueJohn H. LivingstonTeruyuki HiranoRoi Alonso SobrinoOscar BarragánJuan CabreraIlaria CarleoAlexander ChaushevWilliam D. CochranFei DaiJerome de LeonHans J. DeegAnders EriksonMassimiliano EspositoMalcolm FridlundAkihiko FukuiDavide GandolfiIskra GeorgievaLucá Gonzalez CuestaSascha GrziwaEike W. GuentherArtie P. HatzesDiego HidalgoMaria HjorthPetr KabathEmil KnudstrupMikkel N. LundSuvrath MahadevanSavita MathurPilar Montañes RodríguezFelipe MurgasNorio NaritaDavid NespralPrajwal NiraulaEnric PalleMartin PätzoldCarina M. PerssonJorge Prieto-ArranzHeike RauerSeth RedfieldIgnasi RibasPaul RobertsonMarek SkarkaAlexis M. S. SmithJan SubjakVincent Van Eylen

K2-146 is a cool, 0.358 M_sun dwarf that was found to host a mini-Neptune with a 2.67-days period. The planet exhibited strong transit timing variations (TTVs) of greater than 30 minutes, indicative of the presence of a further object in the system... (read more)

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