We report the discovery of TOI-677 b , first identified as a candidate in light curves obtained within Sectors 9 and 10 of the Transiting Exoplanet Survey Satellite ( TESS ) mission and confirmed with radial velocities .
TOI-677 b has a mass of { M _ { p } } = 1.236 _ { -0.067 } ^ { +0.069 } { M _ { J } } , a radius of { R _ { P } } = 1.170 \pm 0.03 { R _ { J } } , and orbits its bright host star ( V = 9.8 mag ) with an orbital period of 11.23660 \pm 0.00011 d , on an eccentric orbit with e = 0.435 \pm 0.024 .
The host star has a mass of { M } _ { \star } = 1.181 \pm 0.058 { M } _ { \odot } , a radius of { R } _ { \star } = 1.28 _ { -0.03 } ^ { +0.03 } { R } _ { \odot } , an age of 2.92 _ { -0.73 } ^ { +0.80 } Gyr and solar metallicity , properties consistent with a main sequence late F star with T _ { eff } = 6295 \pm 77 K. We find evidence in the radial velocity measurements of a secondary long term signal which could be due to an outer companion .
The TOI-677 b system is a well suited target for Rossiter-Mclaughlin observations that can constrain migration mechanisms of close-in giant planets .