Six transiting planets and a chain of Laplace resonances in TOI-178

  title={Six transiting planets and a chain of Laplace resonances in TOI-178},
  author={Adrien Leleu and Yann Alibert and Nathan C. Hara and Matthew J. Hooton and Thomas G. Wilson and Philippe Robutel and Jean-Baptiste Delisle and Jacques Laskar and Sergio Hoyer and Christophe Lovis and Edward M. Bryant and Elsa Ducrot and J. Cabrera and Laetitia Delrez and Jack S Acton and Vardan Adibekyan and Romain Allart and Carlos Allende Prieto and Ricardo J. Alonso and David Castro Alves and D. R. Anderson and Daniel Angerhausen and G. Anglada Escud'e and Joel Asquier and David Barrado and Susana C. C. Barros and Wolfgang Baumjohann and Daniel Bayliss and M. Beck and Thomas Beck and Anja Bekkelien and W. Benz and Nicolas Billot and Andrea Bonfanti and Xavier Bonfils and François Bouchy and Vincent Bourrier and Gwenael Bou'e and Alexis Brandeker and Christopher Broeg and Maximilian Buder and Artem Burdanov and Matthew R. Burleigh and Tamas B'arczy and Andrew Collier Cameron and Scott A Chamberlain and S{\'e}bastien Charnoz and Benjamin F Cooke and Carlos Corral van Damme and Alexandre C. M. Correia and Stefano Cristiani and Mario Damasso and Melvyn B. Davies and Magali Deleuil and Olivier D. S. Demangeon and B-O. Demory and Paolo di Marcantonio and Giuseppe Di Persio and Xavier Dumusque and David Ehrenreich and Anders Erikson and Pedro Figueira and Andrea Fortier and Luca Fossati and Malcolm Fridlund and David Futyan and Davide Gandolfi and Antonio Garc{\'i}a Mu{\~n}oz and L. J. Garcia and Samuel Gill and Edward Gillen and Micha{\"e}l Gillon and M. R. Goad and J. I. Gonz'alez Hern'andez and Manuel Guedel and Maximilian N. Gunther and Jonas Haldemann and Beth A. Henderson and Kevin Heng and Aleisha Hogan and Kate Gudrun Isaak and Emmanuel Jehin and James S. Jenkins and Andr'es Jord'an and L{\'a}szl{\'o} L. Kiss and Martti H. K. Kristiansen and Kristine W. F. Lam and Baptiste Lavie and Alain Lecavelier des Etangs and Monika Lendl and Jorge Lillo-Box and Gaspare Lo Curto and Demetrio Magrin and Carlos J. A. P. Martins and P. F. L. Maxted and J. McCormac and Andrea Mehner and Giuseppina Micela and Paolo Molaro and M. Moyano and C. A. Murray and Valerio Nascimbeni and Nelson J. Nunes and Goeran Olofsson and H. P. Osborn and Morteza Oshagh and Roland Ottensamer and Isabella Pagano and Enric Pall'e and Peter P. Pedersen and Francesco A. Pepe and Carina M. Persson and Gisbert Peter and Giampaolo Piotto and Gianluca Polenta and Don Pollacco and Ennio Poretti and Francisco J. Pozuelos and Didier Queloz and R. Ragazzoni and Nicola Rando and Francesco Ratti and Heike Rauer and Liam Raynard and Rafael Rebolo and Christian Reimers and Ignasi Ribas and Nuno C. Santos and Gaetano Scandariato and Jodi Schneider and Daniel Sebastian and Marko Sestovic and Attila E. Simon and A M S Smith and S{\'e}rgio G. Sousa and Alessandro Sozzetti and Manfred Steller and Alejandro Su'arez Mascareno and Gyula M. Szab'o and Damien S'egransan and Nicolas Thomas and Susan E. Thompson and Rosanna H. Tilbrook and A. H. M. J. Triaud and Oliver Turner and St{\'e}phane Udry and Val{\'e}rie Van Grootel and Holger Venus and Francesco Verrecchia and Jos{\'e} I Vines and Nicholas A. Walton and Richard G. West and Peter J. Wheatley and Dieter Wolter and Mar{\'i}a Rosa Zapatero Osorio},
  journal={Astronomy \& Astrophysics},
Determining the architecture of multi-planetary systems is one of the cornerstones of understanding planet formation and evolution. Resonant systems are especially important as the fragility of their orbital configuration ensures that no significant scattering or collisional event has taken place since the earliest formation phase when the parent protoplanetary disc was still present. In this context, TOI-178 has been the subject of particular attention since the first TESS observations hinted… 
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