TOI-431/HIP 26013: a super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet

Ares Osborn , David J. Armstrong , Bryson Cale , Rafael Brahm , Robert A. Wittenmyer (1, 2) , Fei Dai , Ian J. M. Crossfield , Edward M. Bryant , Vardan Adibekyan , Ryan Cloutier , Karen A. Collins , E. Delgado Mena , Malcolm Fridlund (3, 4) , Coel Hellier , Steve B. Howell (5) , George W. King , Jorge Lillo-Box (6) , Jon Otegi , S. Sousa (7) , Keivan G. Stassun , Elisabeth C. Matthews , Carl Ziegler , George Ricker (8) , Roland Vanderspek , David W. Latham (9) , S. Seager , Joshua N. Winn , Jon M. Jenkins (10) , Jack S. Acton , Brett C. Addison , David R. Anderson , Sarah Ballard , David Barrado (11) , Susana C. C. Barros (12) , Natalie Batalha , Daniel Bayliss , Thomas Barclay (5) , Björn Benneke (13) , John Berberian , Francois Bouchy (14) , Brendan P. Bowler , César Brice No , Christopher J. Burke , Matthew R. Burleigh (15) , Sarah L. Casewell (15) , David Ciardi (16) , Kevin I. Collins , Benjamin F. Cooke , Olivier D. S. Demangeon , Rodrigo F. Díaz (17) , C. Dorn (18) , Diana Dragomir (19) , Courtney Dressing , Xavier Dumusque , Néstor Espinoza (20) , P. Figueira (6, 7) , Benjamin Fulton (16) , E. Furlan , E. Gaidos (21) , C. Geneser , Samuel Gill , Michael R. Goad , Erica J. Gonzales , Varoujan Gorjian , Maximilian N. Günther , Ravit Helled (22) , Beth A. Henderson , Thomas Henning (20) , Aleisha Hogan , Saeed Hojjatpanah , Jonathan Horner , Andrew W. Howard , Sergio Hoyer (12) , Dan Huber , Howard Isaacson (23) , James S. Jenkins (24) , Eric L. N. Jensen , Andrés Jordán (25) , Stephen R. Kane , Richard C. Kidwell , John Kielkopf (26) , Nicholas Law , Monika Lendl (27) , M. Lund (28) , Rachel A. Matson , Andrew W. Mann , James Mccormac , Matthew W. Mengel , Farisa Y. Morales , Louise D. Nielsen , Jack Okumura , Hugh P. Osborn , Erik A. Petigura , Peter Plavchan , Don Pollacco (29) , Elisa V. Quintana , Liam Raynard , Paul Robertson , Mark E. Rose , Arpita Roy , Michael Reefe , Alexandre Santerne (12) , Nuno C. Santos (30) , Paula Sarkis (20, 31) , J. Schlieder (20) , Richard P. Schwarz , Nicholas J. Scott , Avi Shporer , A. M. S. Smith (32) , C. Stibbard , Chris Stockdale , Paul A. Strøm , Joseph D. Twicken , Thiam-Guan Tan , A. Tanner (33) , J. Teske , Rosanna H. Tilbrook , C. G. Tinney (1) , Stephane Udry (30) , Jesus Noel Villase Nor , Jose I. Vines , Sharon X. Wang , Lauren M. Weiss , Richard G. West , Peter J. Wheatley (29) , Duncan J. Wright , Hui Zhang (34) , F. Zohrabi

1 UNSW - University of New South Wales [Sydney]
2 McDonald Observatory
3 Leiden Observatory [Leiden]
4 Chalmers University of Technology [Gothenburg, Sweden]
5 ARC-CREST - NASA Ames Research Center Cooperative for Research in Earth Science in Technology
6 ESO - European Southern Observatory [Santiago]
7 IASTRO - Instituto de Astrofísica e Ciências do Espaço
8 CSR - Center for Space Research [Cambridge]
9 CfA - Harvard-Smithsonian Center for Astrophysics
10 ARC - NASA Ames Research Center
11 ESAC - European Space Astronomy Centre
12 LAM - Laboratoire d'Astrophysique de Marseille
13 Département de Physique [Montréal]
14 IAP - Institut d'Astrophysique de Paris
15 Department of Physics and Astronomy [Leicester]
16 IPAC - Infrared Processing and Analysis Center
17 GEPEA-OSE - Optimisation - Système - Energie
18 Institut für Virologie
19 MIT Kavli Institute for Astrophysics and Space Research
20 MPIA - Max-Planck-Institut für Astronomie
21 Department of Geology and Geophysics [Mānoa]
22 UZH - Universität Zürich [Zürich] = University of Zurich
23 EPS - Department of Earth and Planetary Science [UC Berkeley]
24 UCHILE - Universidad de Chile = University of Chile [Santiago]
25 UC - Pontificia Universidad Católica de Chile
26 University of Louisville
27 OeAW - Austrian Academy of Sciences
28 Lund University [Lund]
29 University of Warwick [Coventry]
30 ObsGE - Observatoire Astronomique de l'Université de Genève
31 Physikalisches Institut [Bern]
32 DLR - German Aerospace Center
33 Swiss Bee Research Centre
34 CMIC - Centre for Medical Image Computing

Keywords: planets and satellites: detection; planets and satellites: fundamental parameters; planets and satellites: individual: (TOI-431; TIC 31374837); Astrophysics - Earth and Planetary Astrophysics

Domains: Physics [physics]; Astrophysics [astro-ph]; Earth and Planetary Astrophysics [astro-ph.EP]

Ares Osborn, David J. Armstrong, Bryson Cale, Rafael Brahm, Robert A. Wittenmyer, et al.. TOI-431/HIP 26013: a super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet. MNRAS, 2021, 507 (2), pp.2782-2803. ⟨10.1093/mnras/stab2313⟩. ⟨hal-03577486⟩