A super-Earth and a sub-Neptune orbiting the bright, quiet M3 dwarf TOI-1266

  title={A super-Earth and a sub-Neptune orbiting the bright, quiet M3 dwarf TOI-1266},
  author={B-O. Demory and Francisco J. Pozuelos and Yilen G{\'o}mez Maqueo Chew and Laurence Sabin and Romina Petrucci and Urs Schroffenegger and Simon L. Grimm and Marko Sestovic and Micha{\"e}l Gillon and J. McCormac and Khalid Barkaoui and W. Benz and Allyson Bieryla and F. Bouchy and Artem Burdanov and Karen A. Collins and Julien de Wit and Courtney D. Dressing and L. J. Garcia and Steven A. Giacalone and Pere Guerra and Jonas Haldemann and Kai Heng and Emmanuel Jehin and E. Jofr{\'e} and Stephen R. Kane and Jorge Lillo-Box and V. Maign{\'e} and Christoph Mordasini and Brett M. Morris and Prajwal Niraula and D. Queloz and Benjamin V. Rackham and Arjun B. Savel and Abderahmane Soubkiou and Gregor Srdo{\vc} and Keivan G. Stassun and A. H. M. J. Triaud and Roberto Zambelli and George R. Ricker and David W. Latham and Sara Seager and Joshua N. Winn and Jon M. Jenkins and T. Calvario-Vel{\'a}squez and J. A. Franco Herrera and Enrique Colorado and E. O. Cadena Zepeda and Liliana Figueroa and A. M. Watson and Erica Lugo-Ibarra and L. Carigi and Gerardo Guisa and J. Herrera and Gerardo Sierra D{\'i}az and J. C. Su{\'a}rez and David Barrado and Natalie M. Batalha and Zouhair Benkhaldoun and Ashley Chontos and Fei Dai and Zahra Essack and Mourad Ghachoui and C. X. Huang and Daniel Huber and Howard T. Isaacson and Jack J. Lissauer and M. Morales-Calder{\'o}n and Paul Robertson and Arpita Roy and Joseph D. Twicken and Andrew M. Vanderburg and Lauren M. Weiss},
  journal={Astronomy \& Astrophysics},
We report the discovery and characterisation of a super-Earth and a sub-Neptune transiting the bright (K = 8.8), quiet, and nearby (37 pc) M3V dwarf TOI-1266. We validate the planetary nature of TOI-1266 b and c using four sectors of TESS photometry and data from the newly-commissioned 1-m SAINT-EX telescope located in San Pedro Mártir (México). We also include additional ground-based follow-up photometry as well as high-resolution spectroscopy and high-angular imaging observations. The inner… 
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