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Transit detection of the long-period volatile-rich super-Earth ν² Lupi d with CHEOPS

Delrez, Laetitia and Ehrenreich, David and Alibert, Yann and Bonfanti, Andrea and Borsato, Luca and Fossati, Luca and Hooton, Matthew J. and Hoyer, Sergio and Pozuelos, Francisco J. and Salmon, Sébastien and Sulis, Sophia and Wilson, Thomas G. and Adibekyan, Vardan and Bourrier, Vincent and Brandeker, Alexis and Charnoz, Sebastien and Deline, Adrien and Guterman, Pascal and Haldemann, Jonas and Hara, Nathan and Oshagh, Mahmoudreza and Sousa, Sérgio G. and Van Grootel, Valérie and Alonso Sobrino, Roi and Anglada-Escudé, Guillem and Bárczy, Tamás and Barrado, David and Barros, Susana C.C. and Baumjohann, Wolfgang and Beck, Mathias and Bekkelien, Anja and Benz, Willy and Billot, Nicolas and Bonfils, Xavier and Broeg, Christopher and Cabrera Perez, Juan and Collier Cameron, Andrew and Davies, Melvyn. B. and Deleuil, Magali and Delisle, Jean-Baptiste and Demangeon, Olivier D.S. and Demory, Brice-Olivier and Erikson, Anders and Fortier, Andrea and Fridlund, Malcolm and Futyan, David and Gandolfi, Davide and Garcia Muñoz, Antonio and Gillon, Michael and Guedel, Manuel and Heng, Kevin and Kiss, Laszlo and Laskar, Jacques and Lecavelier des Etangs, Alain and Lendl, Monika and Lovis, Christophe and Maxted, Pierre F. L. and Nascimbeni, Valerio and Olofsson, Göran and Osborn, Hugh P. and Pagano, Isabella and Palle, Enric and Piotto, Giampaolo and Pollacco, Don and Queloz, Didier and Rauer, Heike and Ragazzoni, Roberto and Ribas, Ignasi and Santos, Nuno C. and Scandariato, Gaetano and Ségransan, Damien and Simon, Attila E. and Smith, Alexis M S and Steller, Manfred and Szabó, Gyula M. and Thomas, Nicolas and Udry, Stephane and Walton, Nicholas A. (2021) Transit detection of the long-period volatile-rich super-Earth ν² Lupi d with CHEOPS. Nature Astronomy, 5, pp. 775-787. Nature Publishing Group. doi: 10.1038/s41550-021-01381-5. ISSN 2397-3366.

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Official URL: https://www.nature.com/articles/s41550-021-01381-5

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.

Item URL in elib:https://elib.dlr.de/144712/
Document Type:Article
Title:Transit detection of the long-period volatile-rich super-Earth ν² Lupi d with CHEOPS
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Delrez, LaetitiaAstrobiology Research Unit, Université de Liège, Allée du 6 Août 19C, B-4000 Liège, Belgium; Space Sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, 19C Allèe du 6 Août, B-4000 Liège, Belgium; Observatoire AstronomiquUNSPECIFIEDUNSPECIFIED
Ehrenreich, DavidUniversity of Geneva, SwitzerlandUNSPECIFIEDUNSPECIFIED
Alibert, YannPhysikalisches Institut, University of Bern, Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Bonfanti, AndreaSpace Research Institute, Austrian Academy of Sciences, Graz, AustriaUNSPECIFIEDUNSPECIFIED
Borsato, LucaDipartimento di Fisica e Astronomia, Universita degli Studi di Padova, via Marzolo 8, 35131 Padova, Italyhttps://orcid.org/0000-0001-8627-9628UNSPECIFIED
Fossati, LucaSpace Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8041 Graz, Austria 0000-0003-4426-9530UNSPECIFIEDUNSPECIFIED
Hooton, Matthew J.Physikalisches Institut, University of Bern, Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Hoyer, SergioAix Marseille Univ, CNRS, CNES, LAM, 38 rue Frédéric Joliot-Curie, 13388 Marseille, Francehttps://orcid.org/0000-0003-3477-2466UNSPECIFIED
Pozuelos, Francisco J.Astrobiology Research Unit, Université de Liège, Liège, Belgium; Space Sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, Liège, BelgiumUNSPECIFIEDUNSPECIFIED
Salmon, SébastienSpace Sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, Liège, Belgium; Observatoire de Genève, Université de Genève, Versoix, SwitzerlandUNSPECIFIEDUNSPECIFIED
Sulis, SophiaAix Marseille Univ, CNRS, CNES, LAM, Marseille, FranceUNSPECIFIEDUNSPECIFIED
Wilson, Thomas G.Centre for Exoplanet Science, SUPA School of Physics and Astronomy, University of St Andrews, St Andrews, UKUNSPECIFIEDUNSPECIFIED
Adibekyan, VardanInstituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Porto, PortugalUNSPECIFIEDUNSPECIFIED
Bourrier, VincentObservatoire de Genève, Université de Genève, Versoix, SwitzerlandUNSPECIFIEDUNSPECIFIED
Brandeker, AlexisDepartment of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, SwedenUNSPECIFIEDUNSPECIFIED
Charnoz, SebastienInstitut de Physique du Globe de Paris, FranceUNSPECIFIEDUNSPECIFIED
Deline, AdrienObservatoire de Genève, Université de Genève, Versoix, SwitzerlandUNSPECIFIEDUNSPECIFIED
Guterman, PascalAix Marseille University, CNRS, CNES, LAM, Marseille, France; Division Technique, INSU, La Seyne, FranceUNSPECIFIEDUNSPECIFIED
Haldemann, JonasDivision Technique, INSU, La Seyne, France); Haldemann, Jonas search by orcid (UNSPECIFIEDUNSPECIFIED
Hara, NathanObservatoire de Genève, Université de Genève, Versoix, SwitzerlandUNSPECIFIEDUNSPECIFIED
Oshagh, MahmoudrezaInstitut für Astrophysik, Georg-August Universitaet Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen, GermanyUNSPECIFIEDUNSPECIFIED
Sousa, Sérgio G.Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Porto, PortugalUNSPECIFIEDUNSPECIFIED
Van Grootel, ValérieUniversité de Liege, BelgiumUNSPECIFIEDUNSPECIFIED
Alonso Sobrino, RoiInstituto de Astrof ́ısica de Canarias (IAC), E-38205 La Laguna, Tenerife,SpainUNSPECIFIEDUNSPECIFIED
Anglada-Escudé, GuillemInstitut de Ciéncies de l'Espai (ICE, CSIC), Bellaterra, Spain; Institut d'Estudis Espacials de Catalunya (IEEC), Barcelona, SpainUNSPECIFIEDUNSPECIFIED
Bárczy, TamásAdmatis, Miskok, HungaryUNSPECIFIEDUNSPECIFIED
Barrado, DavidDepartamento de Astrofísica, Centro de Astrobiología (CSIC-INTA), Madrid, SpainUNSPECIFIEDUNSPECIFIED
Barros, Susana C.C.Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Porto, PortugalUNSPECIFIEDUNSPECIFIED
Baumjohann, WolfgangSpace Research Institute, Austrian Academy of Sciences, Graz, AustriaUNSPECIFIEDUNSPECIFIED
Beck, MathiasObservatoire de Genève, Université de Genève, Versoix, SwitzerlandUNSPECIFIEDUNSPECIFIED
Bekkelien, AnjaObservatoire de Genève, Université de Genève, Versoix, SwitzerlandUNSPECIFIEDUNSPECIFIED
Benz, WillyPhysikalisches Institut, Universität Bern, SchweizUNSPECIFIEDUNSPECIFIED
Billot, NicolasObservatoire de Genève, Université de Genève, Versoix, SwitzerlandUNSPECIFIEDUNSPECIFIED
Bonfils, XavierUniversité Grenoble Alpes, CNRS, IPAG, Grenoble, FranceUNSPECIFIEDUNSPECIFIED
Broeg, ChristopherPhysikalisches Institut, University of Bern, Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Cabrera Perez, JuanUNSPECIFIEDhttps://orcid.org/0000-0001-6653-5487UNSPECIFIED
Collier Cameron, AndrewSUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife KY16 9SS, UKhttps://orcid.org/0000-0002-8863-7828UNSPECIFIED
Davies, Melvyn. B.Lund Observatory, Department of Astronomy and Theoretical Physics, Lund University, 22100, Lund, SwedenUNSPECIFIEDUNSPECIFIED
Deleuil, MagaliAix-Marseille Université, CNRS, CNES, LAM, Marseilles, FranceUNSPECIFIEDUNSPECIFIED
Delisle, Jean-BaptisteAix Marseille University, CNRS, CNES, LAM, Marseille, FranceUNSPECIFIEDUNSPECIFIED
Demangeon, Olivier D.S.Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Porto, PortugalUNSPECIFIEDUNSPECIFIED
Demory, Brice-OlivierUniversity of Bern, Center for Space and Habitability, Gesellschaftsstrasse 6, CH-3012 Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Erikson, AndersUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fortier, AndreaUniversity of Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Fridlund, MalcolmDepartment of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden ; Leiden Observatory, University of Leiden, PO Box 9513, 2300 RA, Leiden, The Netherlands 0000-0003-2180-9936UNSPECIFIEDUNSPECIFIED
Futyan, DavidObservatoire de Genève, University of Geneva, SwitzerlandUNSPECIFIEDUNSPECIFIED
Gandolfi, DavideDipartimento di Fisica, Universita degli Studi di Torino, via Pietro Giuria 1, I-10125, Torino, Italy ); 0000-0001-8627-9628UNSPECIFIEDUNSPECIFIED
Garcia Muñoz, AntonioCenter for Astronomy and Astrophysics, Technical University Berlin, Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Gillon, MichaelSpace sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, Allée du 6 Août 17, Bat. B5C, 4000 Liège, BelgiumUNSPECIFIEDUNSPECIFIED
Guedel, ManuelUniversity of Vienna, Department of Astrophysics, Türkenschanzstrasse 17, 1180, Vienna, AustriaUNSPECIFIEDUNSPECIFIED
Heng, KevinCenter for Space and Habitability, University of Bern, Gesellschaftsstraße 6, 3012, Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Kiss, LaszloKonkoly Observatory, Research Centre for Astronomy and Earth, Budapest, HungaryUNSPECIFIEDUNSPECIFIED
Laskar, JacquesIMCCE, UMR8028 CNRS, Observatoire de Paris, PSL Univ.,Sorbonne Univ., 77 av. Denfert-Rochereau, 75014 Paris, FranceUNSPECIFIEDUNSPECIFIED
Lecavelier des Etangs, AlainInstitut d Astrophysique de Paris, CNRS, UMR 7095 & Sorbonne Universites, UPMC Paris 6, 98 bis bd Arago, 75014 Paris, FranceUNSPECIFIEDUNSPECIFIED
Lendl, MonikaObservatoire de Genève, Université de Genève, Chemin des Maillettes 51, 1290 Sauverny, SwitzerlandUNSPECIFIEDUNSPECIFIED
Lovis, ChristopheGeneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, SwitzerlandUNSPECIFIEDUNSPECIFIED
Maxted, Pierre F. L.Astrophysics Group, Keele University, Staffordshire ST5 5BG, UKUNSPECIFIEDUNSPECIFIED
Nascimbeni, ValerioINAF - Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I-35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Olofsson, GöranDepartment of Astronomy, Stockholm University, AlbaNova University Center, 10691 Stockholm, SwedenUNSPECIFIEDUNSPECIFIED
Osborn, Hugh P.Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology Cambridge, MA 02139, USA; NCCR/Planet-S and Centre for Space and Habitability, University of Bern, Bern CH-3012, SwitzerlandUNSPECIFIEDUNSPECIFIED
Pagano, IsabellaOsservatorio Astrofisico di Catania – INAF, ItalyUNSPECIFIEDUNSPECIFIED
Palle, EnricInstituto de Astrofísica de Canarias (IAC), Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL), Tenerife, SpainUNSPECIFIEDUNSPECIFIED
Piotto, GiampaoloINAF – Osservatorio Astronomico di Padova, vicolo dell Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Pollacco, DonDepartment of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIEDUNSPECIFIED
Queloz, DidierAstrophysics Group, Cavendish Laboratory, J.J. Thomson Avenue, Cambridge CB3 0HE, UKUNSPECIFIEDUNSPECIFIED
Rauer, HeikeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ragazzoni, RobertoOsservatorio Astronomico di Padova – INAF, ItalyUNSPECIFIEDUNSPECIFIED
Ribas, IgnasiInstitut de Ciencies de l'Espai (ICE, CSIC), Campus UAB, C/ de Can Magrans s/n, E-08193 Bellaterra, Spain ; Institut d'Estudis Espacials de Catalunya (IEEC), C/ Gran Capita 2-4, E-08034 Barcelona, Spain 0000-0002-6689-0312UNSPECIFIEDUNSPECIFIED
Santos, Nuno C.Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Porto, Portugal; Departamento de Física e Astronomia, Faculdade de Ciências, Universidade do Porto, Porto, PortugalUNSPECIFIEDUNSPECIFIED
Scandariato, GaetanoNAF – Osservatorio Astronomico di Palermo, Piazza del Parlamento 1, 90134 Palermo, ItalyUNSPECIFIEDUNSPECIFIED
Ségransan, DamienGeneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290 Versoix, SwitzerlandUNSPECIFIEDUNSPECIFIED
Simon, Attila E.Center for Space and Habitability, University of Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Smith, Alexis M SUNSPECIFIEDhttps://orcid.org/0000-0002-2386-4341UNSPECIFIED
Steller, ManfredIWF, AustriaUNSPECIFIEDUNSPECIFIED
Szabó, Gyula M.Department of Experimental Physics & Astronomical Observatory, University of Szeged, Szeged, HungaryUNSPECIFIEDUNSPECIFIED
Thomas, NicolasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Udry, StephaneObservatoire Astronomique de l'Université de Genève, 51 Ch. des Maillettes, CH-1290 Versoix, SwitzerlandUNSPECIFIEDUNSPECIFIED
Walton, Nicholas A.Institute of Astronomy, University of Cambridge, Cambridge, UKUNSPECIFIEDUNSPECIFIED
Date:28 June 2021
Journal or Publication Title:Nature Astronomy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:5
DOI:10.1038/s41550-021-01381-5
Page Range:pp. 775-787
Publisher:Nature Publishing Group
ISSN:2397-3366
Status:Published
Keywords:Astrophysics - Earth and Planetary Astrophysics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - CHEOPS Science
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Institute of Planetary Research > Leitungsbereich PF
Deposited By: Smith, Dr Alexis M S
Deposited On:21 Oct 2021 07:37
Last Modified:20 Oct 2023 08:28

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