A resonant sextuplet of sub-Neptunes transiting the bright star HD 110067
Journal article, 2023
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 stars 1,2. However, their composition, formation and evolution remain poorly understood 3. 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.
Author
R. Luque
University of Chicago
H. P. Osborn
Physics Institute
A. Leleu
Physics Institute
Enric Palle
Instituto de Astrofísica de Canarias
A. Bonfanti
Institut fur Weltraumforschung
O. Barragán
University of Oxford
T.G. Wilson
University of St Andrews
C. Broeg
Physics Institute
A. Collier Cameron
University of St Andrews
M. Lendl
University of Geneva
P. Maxted
Keele University
Y. Alibert
Physics Institute
D. Gandolfi
University of Turin
J. B. Delisle
University of Geneva
M.J. Hooton
University of Cambridge
J. A. Egger
Physics Institute
G. Nowak
Instituto de Astrofísica de Canarias
Marina Lafarga
The University of Warwick
D. Rapetti
NASA Ames Research Center
J. D. Twicken
NASA Ames Research Center
Juan Carlos Morales
Institute of Space Sciences (ICE) - CSIC
Ilaria Carleo
Instituto de Astrofísica de Canarias
J. Orell-Miquel
Instituto de Astrofísica de Canarias
V. Adibekyan
University of Porto
R. Alonso
Instituto de Astrofísica de Canarias
A. Alqasim
University College London (UCL)
P. J. Amado
Institute of Astrophysics of Andalusia (IAA)
D. Anderson
The University of Warwick
G. Anglada Escude´
Institute of Space Sciences (ICE) - CSIC
T. Bandy
European Space Research and Technology Centre (ESA ESTEC)
T. Bárczy
Admatis
D. Barrado Navascues
Centro de Astrobiologia (CAB)
S.C.C. Barros
University of Porto
W. Baumjohann
Institut fur Weltraumforschung
D. Bayliss
The University of Warwick
Jacob L. Bean
University of Chicago
M. Beck
University of Geneva
T. Beck
Physics Institute
W. Benz
Physics Institute
N. Billot
University of Geneva
X. Bonfils
Institut de Planétologie et d’Astrophysique de Grenoble (IPAG)
L. Borsato
Istituto nazionale di astrofisica (INAF)
A. W. Boyle
California Institute of Technology (Caltech)
A. Brandeker
Stockholm University
E. Bryant
The University of Warwick
J. Cabrera
German Aerospace Center (DLR)
S. Carrazco-Gaxiola
Universidad Nacional Autónoma de México
D. Charbonneau
Harvard-Smithsonian Center for Astrophysics
S. Charnoz
Institut de Physique du Globe de Paris
D. R. Ciardi
California Institute of Technology (Caltech)
William D. Cochran
The University of Texas at Austin
Karen A. Collins
Harvard-Smithsonian Center for Astrophysics
I. J.M. Crossfield
University of Kansas
Szilard Csizmadia
German Aerospace Center (DLR)
P. E. Cubillos
Institut fur Weltraumforschung
F. Dai
California Institute of Technology (Caltech)
M.B. Davies
Lund University
H. Deeg
Instituto de Astrofísica de Canarias
M. Deleuil
Laboratoire d'Astrophysique de Marseille
A. Deline
University of Geneva
L. Delrez
University of Liège
O. Demangeon
University of Porto
B.O. Demory
Physics Institute
D. Ehrenreich
University of Geneva
Anders Erikson
German Aerospace Center (DLR)
E. Esparza-Borges
Instituto de Astrofísica de Canarias
B. Falk
Space Telescope Science Institute (STScI)
A. Fortier
Physics Institute
L. Fossati
Institut fur Weltraumforschung
Malcolm Fridlund
Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics
Leiden University
A. Fukui
Instituto de Astrofísica de Canarias
J. Garcia-Mejia
Harvard-Smithsonian Center for Astrophysics
S. Gill
The University of Warwick
Michaël Gillon
University of Liège
E. Goffo
University of Turin
Y. Gómez Maqueo Chew
Universidad Nacional Autónoma de México
M. Gudel
University of Vienna
E. W. Guenther
Thüringer Landessternwarte Tautenburg
Maximilian N. Günther
European Space Research and Technology Centre (ESA ESTEC)
A. Hatzes
Thüringer Landessternwarte Tautenburg
Ch. Helling
Institut fur Weltraumforschung
K.M. Hesse
Massachusetts Institute of Technology (MIT)
S.B. Howell
NASA Ames Research Center
S. Hoyer
Laboratoire d'Astrophysique de Marseille
K. Ikuta
University of Tokyo
K. Isaak
European Space Research and Technology Centre (ESA ESTEC)
Jon M. Jenkins
NASA Ames Research Center
T. Kagetani
University of Tokyo
L. Kiss
Hungarian Academy of Sciences
T. Kodama
University of Tokyo
Judith Korth
Lund University
K. W.F. Lam
German Aerospace Center (DLR)
J. Laskar
Paris Observatory
D. W. Latham
Harvard-Smithsonian Center for Astrophysics
A. L. des Etangs
Institut d 'Astrophysique de Paris
J.P.D. Leon
University of Tokyo
J.H. Livingston
Astrobiology Center, Japan
D. Magrin
Istituto nazionale di astrofisica (INAF)
Rachel A. Matson
US Naval Observatory
Elisabeth Matthews
Max Planck Society
C. Mordasini
Physics Institute
Mayuko Mori
University of Tokyo
M. Moyano
Universidad Catolica del Norte
M. Munari
Istituto nazionale di astrofisica (INAF)
F. Murgas
Instituto de Astrofísica de Canarias
Norio Narita
Instituto de Astrofísica de Canarias
Valerio Nascimbeni
Istituto nazionale di astrofisica (INAF)
G. Olofsson
Stockholm University
H. L.M. Osborne
University College London (UCL)
R. Ottensamer
University of Vienna
I. Pagano
Istituto nazionale di astrofisica (INAF)
H. Parviainen
Instituto de Astrofísica de Canarias
G. Peter
German Aerospace Center (DLR)
Giampaolo P. Piotto
Istituto nazionale di astrofisica (INAF)
Don L. Pollacco
The University of Warwick
D. Queloz
University of Cambridge
Samuel N. Quinn
Harvard-Smithsonian Center for Astrophysics
A. Quirrenbach
Heidelberg-Königstuhl State Observatory
R. Ragazzoni
Istituto nazionale di astrofisica (INAF)
N. Rando
European Space Research and Technology Centre (ESA ESTEC)
F. Ratti
European Space Research and Technology Centre (ESA ESTEC)
H. Rauer
German Aerospace Center (DLR)
S. Redfield
Wesleyan University
I. Ribas
Institute of Space Sciences (ICE) - CSIC
George R. Ricker
Massachusetts Institute of Technology (MIT)
Alexander Rudat
Massachusetts Institute of Technology (MIT)
L. Sabin
Universidad Nacional Autónoma de México
S. Salmon
University of Geneva
N. C. Santos
University of Porto
Gaetano Scandariato
Istituto nazionale di astrofisica (INAF)
N. Schanche
University of Bern
Joshua E. Schlieder
NASA Goddard Space Flight Center
S. Seager
Massachusetts Institute of Technology (MIT)
D. Segransan
University of Geneva
Avi Shporer
Massachusetts Institute of Technology (MIT)
A.E. Simon
Physics Institute
A. M.S. Smith
German Aerospace Center (DLR)
S.G. Sousa
University of Porto
M. Stalport
University of Liège
G.M. Szabó
Eötvös Loránd University (ELTE)
Nicolas Thomas
Physics Institute
A. Tuson
University of Cambridge
S. Udry
University of Geneva
A. Vanderburg
Massachusetts Institute of Technology (MIT)
Vincent Van Eylen
University College London (UCL)
V. Van Grootel
University of Liège
J. Venturini
University of Geneva
I. Walter
German Aerospace Center (DLR)
N. A. Walton
University of Cambridge
N. Watanabe
University of Tokyo
J. N. Winn
Princeton University
Tiziano Zingales
University of Padua
Nature
0028-0836 (ISSN) 1476-4687 (eISSN)
Vol. 623 7989 932-937Subject Categories
Astronomy, Astrophysics and Cosmology
DOI
10.1038/s41586-023-06692-3
PubMed
38030780