HD 2685 b: a hot Jupiter orbiting an early F-type star detected by TESS

摘要: We report on the confirmation of a transiting giant planet around relatively hot (T_(eff) = 6801 ± 76 K) star HD 2685, whose transit signal was detected in Sector 1 data NASA’s TESS mission. confirmed planetary nature using Doppler velocimetric measurements with CHIRON, CORALIE, and FEROS, as well photometric obtained Chilean-Hungarian Automated Telescope Las Cumbres Observatory. From joint analysis photometry radial velocities, we derived following parameters for 2685 b: P 4.12688_(−0.00004)^(+0.00005) days, e= 0.091_(−0.047)^(+0.039), M_P 1.17 0.12 M_J, RP =1.44 0.05 RJ. This system is typical example an inflated Jupiter low-eccentricity orbit. Based apparent visual magnitude (V 9.6 mag) host star, this one brightest known stars hosting Jupiter, it good upcoming systems that will be by during two-year primary also excellent target future ground- space-based atmospheric characterization candidate measuring projected spin-orbit misalignment angle through Rossiter–McLaughlin effect.