K2-60b and K2-107b. A Sub-Jovian and a Jovian Planet from the K2 Mission

Summary, in English

We report the characterization and independent detection of K2-60b, as well as the detection and characterization of K2-107b, two transiting hot gaseous planets from the K2 space mission. We confirm the planetary nature of the two systems and determine their fundamental parameters combining the K2 time-series data with FIES@NOT and HARPS-N@TNG spectroscopic observations. K2-60b has a radius of 0.683 ±0.037 R _Jup and a mass of 0.426 ±0.037 M _Jup and orbits a G4 V star with an orbital period of 3.00267 ±0.00006 days. K2-107b has a radius of 1.44 ±0.15 R _Jup and a mass of 0.84 ±0.08 M _Jup and orbits an F9 IV star every 3.31392 ±0.00002 days. K2-60b is among the few planets at the edge of the so-called "desert" of short-period sub-Jovian planets. K2-107b is a highly inflated Jovian planet orbiting an evolved star about to leave the main sequence.

• Author: Philipp Eigmüller; Davide Gandolfi; Carina M. Persson; Paolo Donati; Malcolm Fridlund; Szilard Csizmadia; Oscar Barragán; Alexis M.S. Smith; Juan Cabrera; Judith Korth; Sascha Grziwa; Jorge Prieto-Arranz; David Nespral; Joonas Saario; William D. Cochran; Felice Cusano; Hans J. Deeg; Michael Endl; Anders Erikson; Eike W. Guenther; Artie P. Hatzes; Martin Pätzold; Heike Rauer
• Publishing year: 2017-03
• Language: English
• Publication/Series: Astronomical Journal
• Volume: 153
• Issue: 3
• Links: http://dx.doi.org/10.3847/1538-3881/aa5d0b
• Document type: Journal article
• Publisher: IOP Publishing
• Keywords: planetary systems; planets and satellites: detection; planets and satellites: gaseous planets; planets and satellites: individual (K2-60 b, K2-107 b)
• Status: Published
• ISBN/ISSN/Other: ISSN: 0004-6256