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 +- 0.03 R_J,and orbits its bright host star (V=9.8 mag) with an orbital period of 11.23660 +- 0.00011 d, on an eccentric orbit with e = 0.435 +- 0.024. The host star has a mass of M_* = 1.181 +- 0.058 M_sun, a radius of R_* = 1.28 +- 0.03 R_sun, 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 +- 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.
@article{arxiv.1911.05574,
title = {TOI-677 b: A Warm Jupiter (P=11.2d) on an eccentric orbit transiting a late F-type star},
author = {Andrés Jordán and Rafael Brahm and Néstor Espinoza and Thomas Henning and Matías I. Jones and Diana Kossakowski and Paula Sarkis and Trifon Trifonov and Felipe Rojas and Pascal Torres and Holger Drass and Sangeetha Nandakumar and Mauro Barbieri and Allen Davis and Songhu Wang and Daniel Bayliss and Luke Bouma and Diana Dragomir and Jason D. Eastman and Tansu Daylan and Natalia Guerrero and Thomas Barclay and Eric B. Ting and Christopher E. Henze and George Ricker and Roland Vanderspek and David W. Latham and Sara Seager and Joshua Winn and Jon M. Jenkins and Robert A. Wittenmyer and Brendan P. Bowler and Ian Crossfield and Jonathan Horner and Stephen R. Kane and John F. Kielkopf and Timothy D. Morton and Peter Plavchan and C. G. Tinney and Brett Addison and Matthew W. Mengel and Jack Okumura and Sahar Shahaf and Tsevi Mazeh and Markus Rabus and Avi Shporer and Carl Ziegler and Andrew W. Mann and Rhodes Hart},
journal= {arXiv preprint arXiv:1911.05574},
year = {2020}
}