Journal articles
Transit detection of the long-period volatile-rich super-Earth ν2 Lupi d with CHEOPS
Laetitia Delrez
1
David Ehrenreich
2
Yann Alibert
3
Andrea Bonfanti
Luca Borsato
Luca Fossati
4
Matthew Hooton
Sergio Hoyer
5
Francisco Pozuelos
Sébastien Salmon
6
Sophia Sulis
Thomas Wilson
Vardan Adibekyan
Vincent Bourrier
Alexis Brandeker
Sébastien Charnoz
Adrien Deline
Pascal Guterman
Jonas Haldemann
Nathan Hara
Mahmoudreza Oshagh
Sergio Sousa
Valérie van Grootel
Roi Alonso
Guillem Anglada-Escudé
Tamás Bárczy
David Barrado
Susana Barros
Wolfgang Baumjohann
Mathias Beck
Anja Bekkelien
Willy Benz
Xavier Bonfils
7
Nicolas Billot
Christopher Broeg
Juan Cabrera
Andrew Collier Cameron
Melvyn Davies
Magali Deleuil
Jean-Baptiste Delisle
Olivier Demangeon
Brice-Olivier Demory
Anders Erikson
Andrea Fortier
Malcolm Fridlund
David Futyan
Davide Gandolfi
Antonio Garcia Muñoz
Michaël Gillon
Manuel Guedel
Kevin Heng
László Kiss
Jacques Laskar
8
Alain Lecavelier Des Etangs
Monika Lendl
Christophe Lovis
Pierre Maxted
Valerio Nascimbeni
Göran Olofsson
Hugh Osborn
Isabella Pagano
Enric Pallé
Giampaolo Piotto
Don Pollacco
Didier Queloz
Heike Rauer
Roberto Ragazzoni
Ignasi Ribas
Nuno Santos
Gaetano Scandariato
Damien Ségransan
Attila Simon
Alexis Smith
Manfred Steller
Gyula Szabó
Nicolas Thomas
Stéphane Udry
Nicholas Walton
Laetitia Delrez 1
Author ORCID : https://orcid.org/0000-0001-6108-4808
David Ehrenreich 2
Author ORCID : https://orcid.org/0000-0001-9704-5405
Yann Alibert 3
Author ORCID : https://orcid.org/0000-0002-4644-8818
Andrea Bonfanti
Author ORCID : https://orcid.org/0000-0002-1916-5935
Luca Borsato
Author ORCID : https://orcid.org/0000-0003-0066-9268
Luca Fossati 4
Author ORCID : https://orcid.org/0000-0003-4426-9530
Matthew Hooton
Author ORCID : https://orcid.org/0000-0003-0030-332X
Sergio Hoyer 5
Author ORCID : https://orcid.org/0000-0003-3477-2466
Francisco Pozuelos
Author
Sébastien Salmon 6
Author
Sophia Sulis
Author ORCID : https://orcid.org/0000-0001-8783-526X
Thomas Wilson
Author ORCID : https://orcid.org/0000-0001-8749-1962
Vardan Adibekyan
Author ORCID : https://orcid.org/0000-0002-0601-6199
Vincent Bourrier
Author ORCID : https://orcid.org/0000-0002-9148-034X
Alexis Brandeker
Author ORCID : https://orcid.org/0000-0002-7201-7536
Sébastien Charnoz
Author ORCID : https://orcid.org/0000-0002-7442-491X
Adrien Deline
Author
Pascal Guterman
Author
Jonas Haldemann
Author ORCID : https://orcid.org/0000-0003-1231-2389
Nathan Hara
Author
Mahmoudreza Oshagh
Author
Sergio Sousa
Author
Valérie van Grootel
Author
Roi Alonso
Author ORCID : https://orcid.org/0000-0001-8462-8126
Guillem Anglada-Escudé
Author
Tamás Bárczy
Author
David Barrado
Author ORCID : https://orcid.org/0000-0002-5971-9242
Susana Barros
Author
Wolfgang Baumjohann
Author ORCID : https://orcid.org/0000-0001-6271-0110
Mathias Beck
Author
Anja Bekkelien
Author
Willy Benz
Author
Xavier Bonfils 7
Author IdHAL : xavier-bonfils ORCID : https://orcid.org/0000-0001-9003-8894
Nicolas Billot
Author
Christopher Broeg
Author
Juan Cabrera
Author ORCID : https://orcid.org/0000-0001-6653-5487
Andrew Collier Cameron
Author ORCID : https://orcid.org/0000-0002-8863-7828
Melvyn Davies
Author
Magali Deleuil
Author ORCID : https://orcid.org/0000-0001-6036-0225
Jean-Baptiste Delisle
Author
Olivier Demangeon
Author ORCID : https://orcid.org/0000-0001-7918-0355
Brice-Olivier Demory
Author ORCID : https://orcid.org/0000-0002-9355-5165
Anders Erikson
Author
Andrea Fortier
Author ORCID : https://orcid.org/0000-0001-8450-3374
Malcolm Fridlund
Author ORCID : https://orcid.org/0000-0002-0855-8426
David Futyan
Author
Davide Gandolfi
Author
Antonio Garcia Muñoz
Author
Michaël Gillon
Author
Manuel Guedel
Author
Kevin Heng
Author ORCID : https://orcid.org/0000-0003-1907-5910
László Kiss
Author
Jacques Laskar 8
Author ORCID : https://orcid.org/0000-0003-2634-789X
Alain Lecavelier Des Etangs
Author
Monika Lendl
Author
Christophe Lovis
Author
Isabella Pagano
Author ORCID : https://orcid.org/0000-0001-9573-4928
Enric Pallé
Author
Giampaolo Piotto
Author ORCID : https://orcid.org/0000-0002-9937-6387
Don Pollacco
Author
Didier Queloz
Author ORCID : https://orcid.org/0000-0002-3012-0316
Heike Rauer
Author
Roberto Ragazzoni
Author
Ignasi Ribas
Author ORCID : https://orcid.org/0000-0002-6689-0312
Alexis Smith
Author ORCID : https://orcid.org/0000-0002-2386-4341
Manfred Steller
Author
Gyula Szabó
Author
Nicolas Thomas
Author
Stéphane Udry
Author ORCID : https://orcid.org/0000-0001-7576-6236
Nicholas Walton
Author ORCID : https://orcid.org/0000-0003-3983-8778
1
Cavendish Laboratory (JJ Thomson Ave, Cambridge CB3 0HE - United Kingdom)
- CAM - University of Cambridge [UK] (The Old Schools, Trinity Lane, Cambridge CB2 1TN - United Kingdom)
2
ObsGE - Observatoire Astronomique de l'Université de Genève (chemin des Maillettes CH-1290 Sauverny - Switzerland)
- UNIGE - Université de Genève (24 rue du Général-Dufour CH - 1211 Genève 4 Suisse - Switzerland)
3
LAOB - Laboratoire d'astrophysique de l'observatoire de Besançon (UMR 6091) (Observatoire des sciences de l'univers de Besançon 41bis, avenue de l'Observatoire BP1615 25010 Besançon - France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR6091 (France)
- UFC - Université de Franche-Comté (1 rue Goudimel 25030 Besançon cedex - France)
4
IWF - Space Research Institute of Austrian Academy of Sciences (Schmiedlstraße 6, 8042 Graz - Austria)
- OeAW - Austrian Academy of Sciences (Doktor-Ignaz-Seipel-Platz 2, 1010 Wien - Austria)
5
LAM - Laboratoire d'Astrophysique de Marseille (Pôle de l'Étoile Site de Château-Gombert 38, rue Frédéric Joliot-Curie 13388 Marseille cedex 13 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7326 (France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- AMU - Aix Marseille Université : UMR7326 (Aix-Marseille Université Jardins du Pharo 58 Boulevard Charles Livon 13284 Marseille cedex 7 - France)
- CNES - Centre National d'Études Spatiales [Toulouse] : UMR7326 (18 avenue Edouard Belin 31401 Toulouse - France)
7
IPAG - Institut de Planétologie et d'Astrophysique de Grenoble (414, Rue de la Piscine BP 53 38041 Grenoble Cedex 9 - France)
- CNES - Centre National d'Études Spatiales [Toulouse] (18 avenue Edouard Belin 31401 Toulouse - France)
- OSUG - Observatoire des Sciences de l'Univers de Grenoble (414 Rue de la piscine - BP 53 38041 GRENOBLE CEDEX 9 - France)
- INSU - CNRS - Institut national des sciences de l'Univers : UAR832 / UMS832 (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- USMB [Université de Savoie] [Université de Chambéry] - Université Savoie Mont Blanc (27, rue Marcoz - 73000 Chambéry - France)
- CNRS - Centre National de la Recherche Scientifique : UAR832 / UMS832 (France)
- INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement : UMS1484 (France)
- UGA - Université Grenoble Alpes (Adresse CS 40700 - 38058 Grenoble cedex - France)
- Météo-France (73 avenue de Paris 94165 Saint-Mande Cedex - France)
8
IMCCE - Institut de Mécanique Céleste et de Calcul des Ephémérides (77 av Denfert-Rochereau 75014 Paris - France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- Observatoire de Paris (61 Av de l'Observatoire 75014 PARIS - France)
- PSL - Université Paris sciences et lettres (60 rue Mazarine 75006 Paris - France)
- Université de Lille (Lille - France)
- SU - Sorbonne Université (21 rue de l’École de médecine - 75006 Paris - France)
- CNRS - Centre National de la Recherche Scientifique : UMR8028 (France)
Abstract : Exoplanets transiting bright nearby stars are key objects for advancing our knowledge of planetary formation and evolution. The wealth of photons from the host star gives detailed access to the atmospheric, interior and orbital properties of the planetary companions. ν2 Lupi (HD 136352) is a naked-eye (V = 5.78) Sun-like star that was discovered to host three low-mass planets with orbital periods of 11.6, 27.6 and 107.6 d via radial-velocity monitoring1. The two inner planets (b and c) were recently found to transit2, prompting a photometric follow-up by the brand new Characterising Exoplanets Satellite (CHEOPS). Here, we report that the outer planet d is also transiting, and measure its radius and mass to be 2.56 ± 0.09 R⊕ and 8.82 ± 0.94 M⊕, respectively. With its bright Sun-like star, long period and mild irradiation (~5.7 times the irradiation of Earth), ν2 Lupi d unlocks a completely new region in the parameter space of exoplanets amenable to detailed characterization. We refine the properties of all three planets: planet b probably has a rocky mostly dry composition, while planets c and d seem to have retained small hydrogen-helium envelopes and a possibly large water fraction. This diversity of planetary compositions makes the ν2 Lupi system an excellent laboratory for testing formation and evolution models of low-mass planets.
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Journal articles
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https://hal-insu.archives-ouvertes.fr/insu-03458402
Contributor : Xavier Bonfils Connect in order to contact the contributor
Submitted on : Tuesday, November 30, 2021 - 8:44:30 PM
Last modification on : Monday, April 11, 2022 - 3:56:32 PM
Contributor : Xavier Bonfils Connect in order to contact the contributor
Submitted on : Tuesday, November 30, 2021 - 8:44:30 PM
Last modification on : Monday, April 11, 2022 - 3:56:32 PM
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- HAL Id : insu-03458402, version 1
- ARXIV : 2106.14491
- BIBCODE : 2021NatAs...5..775D
- DOI : 10.1038/s41550-021-01381-5
Collections
INSU | UNIV-BM | UNIV-FCOMTE | LAM | UNIV-BM-THESE | UNIV-SAVOIE | UNIV-AMU | INRAE | IPAG | UTINAM | CNRS | OSU-INSTITUT-PYTHEAS | UGA | OBSPM | IMCCE | SORBONNE-UNIVERSITE | PSL | UNIV-LILLE | SU-SCIENCES | SU-TI | METEO
Citation
Laetitia Delrez, David Ehrenreich, Yann Alibert, Andrea Bonfanti, Luca Borsato, et al.. Transit detection of the long-period volatile-rich super-Earth ν2 Lupi d with CHEOPS. Nature Astronomy, Nature Publishing Group, 2021, 5, pp.775-787. ⟨10.1038/s41550-021-01381-5⟩. ⟨insu-03458402⟩
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