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تسجيل مستخدم جديدAn independent discovery of two hot Jupiters from the K2 mission
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We report the discovery of two hot Jupiters using photometry from Campaigns 4 and 5 of the two-wheeled Kepler (K2) mission. K2-30b has a mass of $ 0.65 pm 0.14 M_J$, a radius of $1.070 pm 0.018 R_J$ and transits its G dwarf ($T_{eff} = 5675 pm 50$ K), slightly metal rich ([Fe/H]$=+0.06pm0.04$ dex) host star in a 4.1 days circular orbit. K2-34b has a mass of $ 1.63 pm 0.12 M_J$, a radius of $1.38 pm 0.014 R_J$ and has an orbital period of 3.0 days in which it orbits a late F dwarf ($T_{eff} = 6149 pm 55$ K) solar metallicity star. Both planets were validated probabilistically and confirmed via precision radial velocity (RV) measurements. They have physical and orbital properties similar to the ones of the already uncovered population of hot Jupiters and are well-suited candidates for further orbital and atmospheric characterization via detailed follow-up observations. Given that the discovery of both systems was recently reported by other groups we take the opportunity of refining the planetary parameters by including the RVs obtained by these independent studies in our global analysis.
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We confirm the planetary nature of two transiting hot Jupiters discovered by the Kepler spacecrafts K2 extended mission in its Campaign 4, using precise radial velocity measurements from FIES@NOT, HARPS-N@TNG, and the coude spectrograph on the McDona
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