We present here SPECULOOS, a new exoplanet transit search based on a network of 1m-class robotic telescopes targeting the ~1200 ultracool (spectral type M7 and later) dwarfs bright enough in the infrared (K-mag ≤ 12.5) to possibly enable the atmospheric characterization of temperate terrestrial planets with next-generation facilities like the James Webb Space Telescope. The ultimate goals of the project are to reveal the frequency of temperate terrestrial planets around the lowest-mass stars and brown dwarfs, to probe the diversity of their bulk compositions, atmospheres and surface conditions, and to assess their potential habitability.

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Laetitia Delrez, Michaël Gillon, Didier Queloz, Brice-Olivier Demory, Yaseen Almleaky, Julien de Wit, Emmanuël Jehin, Amaury H. M. J. Triaud, Khalid Barkaoui, Artem Burdanov, Adam J. Burgasser, Elsa Ducrot, James McCormac, Catriona Murray, Catarina Silva Fernandes, Sandrine Sohy, Samantha J. Thompson, Valérie Van Grootel, Roi Alonso, Zouhair Benkhaldoun, and Rafael Rebolo, "SPECULOOS: a network of robotic telescopes to hunt for terrestrial planets around the nearest ultracool dwarfs," Proc. SPIE 10700, Ground-based and Airborne Telescopes VII, 107001I (Presented at SPIE Astronomical Telescopes + Instrumentation: June 14, 2018; Published: 6 July 2018); https://doi.org/10.1117/12.2312475.