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A resonant sextuplet of sub-Neptunes transiting the bright star HD 110067.
Luque, R; Osborn, H P; Leleu, A; Pallé, E; Bonfanti, A; Barragán, O; Wilson, T G; Broeg, C; Cameron, A Collier; Lendl, M; Maxted, P F L; Alibert, Y; Gandolfi, D; Delisle, J-B; Hooton, M J; Egger, J A; Nowak, G; Lafarga, M; Rapetti, D; Twicken, J D; Morales, J C; Carleo, I; Orell-Miquel, J; Adibekyan, V; Alonso, R; Alqasim, A; Amado, P J; Anderson, D R; Anglada-Escudé, G; Bandy, T; Bárczy, T; Barrado Navascues, D; Barros, S C C; Baumjohann, W; Bayliss, D; Bean, J L; Beck, M; Beck, T; Benz, W; Billot, N; Bonfils, X; Borsato, L; Boyle, A W; Brandeker, A; Bryant, E M; Cabrera, J; Carrazco-Gaxiola, S; Charbonneau, D; Charnoz, S; Ciardi, D R.
Afiliación
  • Luque R; Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL, USA. rluque@uchicago.edu.
  • Osborn HP; Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland.
  • Leleu A; Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA.
  • Pallé E; Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA.
  • Bonfanti A; Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland.
  • Barragán O; Observatoire Astronomique de l'Université de Genève, Versoix, Switzerland.
  • Wilson TG; Instituto de Astrofisica de Canarias, La Laguna, Tenerife, Spain.
  • Broeg C; Departamento de Astrofisica, Universidad de La Laguna, La Laguna, Tenerife, Spain.
  • Cameron AC; Space Research Institute, Austrian Academy of Sciences, Graz, Austria.
  • Lendl M; Sub-department of Astrophysics, Department of Physics, University of Oxford, Oxford, UK.
  • Maxted PFL; Centre for Exoplanet Science, SUPA School of Physics and Astronomy, University of St Andrews, St Andrews, UK.
  • Alibert Y; Department of Physics, University of Warwick, Coventry, UK.
  • Gandolfi D; Centre for Exoplanets and Habitability, University of Warwick, Coventry, UK.
  • Delisle JB; Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland.
  • Hooton MJ; Center for Space and Habitability, University of Bern, Bern, Switzerland.
  • Egger JA; Centre for Exoplanet Science, SUPA School of Physics and Astronomy, University of St Andrews, St Andrews, UK.
  • Nowak G; Observatoire Astronomique de l'Université de Genève, Versoix, Switzerland.
  • Lafarga M; Astrophysics Group, Lennard Jones Building, Keele University, Keele, UK.
  • Rapetti D; Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland.
  • Twicken JD; Center for Space and Habitability, University of Bern, Bern, Switzerland.
  • Morales JC; Dipartimento di Fisica, Universita degli Studi di Torino, Torino, Italy.
  • Carleo I; Observatoire Astronomique de l'Université de Genève, Versoix, Switzerland.
  • Orell-Miquel J; Cavendish Laboratory, University of Cambridge, Cambridge, UK.
  • Adibekyan V; Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland.
  • Alonso R; Instituto de Astrofisica de Canarias, La Laguna, Tenerife, Spain.
  • Alqasim A; Departamento de Astrofisica, Universidad de La Laguna, La Laguna, Tenerife, Spain.
  • Amado PJ; Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Torun, Poland.
  • Anderson DR; Department of Physics, University of Warwick, Coventry, UK.
  • Anglada-Escudé G; Centre for Exoplanets and Habitability, University of Warwick, Coventry, UK.
  • Bandy T; NASA Ames Research Center, Moffett Field, CA, USA.
  • Bárczy T; Research Institute for Advanced Computer Science, Universities Space Research Association, Washington, DC, USA.
  • Barrado Navascues D; NASA Ames Research Center, Moffett Field, CA, USA.
  • Barros SCC; SETI Institute, Mountain View, CA, USA.
  • Baumjohann W; Institut de Ciencies de l'Espai (ICE-CSIC), Bellaterra, Spain.
  • Bayliss D; Institut d'Estudis Espacials de Catalunya (IEEC), Barcelona, Spain.
  • Bean JL; Instituto de Astrofisica de Canarias, La Laguna, Tenerife, Spain.
  • Beck M; INAF - Osservatorio Astrofisico di Torino, Pino Torinese, Italy.
  • Beck T; Instituto de Astrofisica de Canarias, La Laguna, Tenerife, Spain.
  • Benz W; Departamento de Astrofisica, Universidad de La Laguna, La Laguna, Tenerife, Spain.
  • Billot N; Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, Porto, Portugal.
  • Bonfils X; Departamento de Física e Astronomia, Faculdade de Ciências, Universidade do Porto, Porto, Portugal.
  • Borsato L; Instituto de Astrofisica de Canarias, La Laguna, Tenerife, Spain.
  • Boyle AW; Departamento de Astrofisica, Universidad de La Laguna, La Laguna, Tenerife, Spain.
  • Brandeker A; Mullard Space Science Laboratory, University College London, Dorking, UK.
  • Bryant EM; Instituto de Astrofísica de Andalucía (IAA-CSIC), Granada, Spain.
  • Cabrera J; Department of Physics, University of Warwick, Coventry, UK.
  • Carrazco-Gaxiola S; Centre for Exoplanets and Habitability, University of Warwick, Coventry, UK.
  • Charbonneau D; Institut de Ciencies de l'Espai (ICE-CSIC), Bellaterra, Spain.
  • Charnoz S; Institut d'Estudis Espacials de Catalunya (IEEC), Barcelona, Spain.
  • Ciardi DR; European Space Research and Technology Centre (ESTEC), European Space Agency (ESA), Noordwijk, The Netherlands.
Nature ; 623(7989): 932-937, 2023 Nov.
Article en En | MEDLINE | ID: mdl-38030780
ABSTRACT
Planets with radii between that of the Earth and Neptune (hereafter referred to as 'sub-Neptunes') are found in close-in orbits around more than half of all Sun-like stars1,2. However, their composition, formation and evolution remain poorly understood3. The study of multiplanetary systems offers an opportunity to investigate the outcomes of planet formation and evolution while controlling for initial conditions and environment. Those in resonance (with their orbital periods related by a ratio of small integers) are particularly valuable because they imply a system architecture practically unchanged since its birth. Here we present the observations of six transiting planets around the bright nearby star HD 110067. We find that the planets follow a chain of resonant orbits. A dynamical study of the innermost planet triplet allowed the prediction and later confirmation of the orbits of the rest of the planets in the system. The six planets are found to be sub-Neptunes with radii ranging from 1.94R⊕ to 2.85R⊕. Three of the planets have measured masses, yielding low bulk densities that suggest the presence of large hydrogen-dominated atmospheres.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Nature Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Nature Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos