GJ1022 radial velocity and FWHM data

GJ 1002 c is a planet with a minimum mass m_p_sini of 1.36+/-0.17M_{sun}_ with an orbital period of 20.202+/-0.013 days at a distance of 0.0738+/-0.0021au from its parent star, receiving an estimated stellar flux of 0.257F_{sun}_. We also detect the rotation signature of the star, with a period of 126+/-15 days. We find that there is a correlation between the temperature of certain optical elements in the spectrographs and changes in the instrumental profile that can affect the scientific data, showing a seasonal behaviour that creates spurious signals at periods longer than ~200 days.

GJ 1002 is one of the few known nearby systems with planets that could potentially host habitable environments. The closeness of the host star to the Sun makes the angular sizes of the orbits of both planets (~9.7 mas and ~15.7mas, respectively) large enough for their atmosphere to be studied via high-contrast high-resolution spectroscopy with instruments such as the future spectrograph ANDES for the ELT or the LIFE mission.