Robotic follow-up in the era of exoplanetary surveys:the TJO telescope at Montsec Observatory

The diversity of upcoming exoplanetary missions, both space and ground-based, will provide unprecedented view of the extrasolar planet population in the broader Galactic context. Missions like PLATO and ARIEL will build on the work of Kepler and TESS by discovering more planets with bright host stars and characterising the atmospheric compostition of a miriad of planetary systems. This is already presenting a need for systematic and coordinated ground-based follow-up observations to better support these missions. The rapid reaction and flexible, remote scheduling capabilities of robotic facilites makes them powerful tools for scientific explotation of time domain topics in general, and in particular of exoplanets and characterisation of their host stars.We introduce the Joan Or telescope (TJO), a fully-robotic 0.8m telescope at the Montsec Observatory dedicated to astrophysical research and Space Surveillance and Tracking activities. We present past and ongoing involment in exoplanetary research, such as photometric follow-up programs of CARMENES, TESS and ARIEL targets, and the potential for transient alert observations and unattended long-term monitoring in support of the next generation of exoplanetary surveys.