Nature Astronomy

, volume 5 , issue 8 , pages 775-787

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

Laetitia Delrez ^{1, 2, 3}

David Ehrenreich ³

Yann Alibert ⁴

A. Bonfanti ⁵

Luca Borsato ⁶

Luca Fossati ⁵

Matthew J. Hooton ⁴

S. Hoyer ⁷

Francisco J Pozuelos ^{1, 2}

Sébastien Salmon ^{2, 3}

S. Sulis ⁷

Thomas G. Wilson ⁸

Vardan Adibekyan ^{9, 10}

Vincent Bourrier ³

Alexis Brandeker ¹¹

Sébastien Charnoz ¹²

Adrien Deline ³

Pascal Guterman ^{7, 13}

Jonas Haldemann ⁴

Nathan Hara ³

Mahmoudreza Oshagh ^{14, 15}

Sérgio G. Sousa ⁹

Valérie Van Grootel ²

Roi Alonso ^{14, 15}

Guillem Anglada-Escudé ^{16, 17}

Tamas Bárczy ¹⁸

David Barrado ¹⁹

Susana C C Barros ^{9, 10}

W. Baumjohann ⁵

Mathias Beck ³

Anja Bekkelien ³

Willy Benz ^{4, 20}

Nicolas Billot ³

Xavier Bonfils ²¹

Christopher Broeg ⁴

J. Cabrera ²²

Andrew Collier Cameron ⁸

Melvyn B. Davies ²³

M. Deleuil ⁷

Jean-Baptiste Delisle ³

Olivier D. S. Demangeon ^{9, 10}

Brice-Olivier Demory ²⁰

Anders Erikson ²²

A. Fortier ⁴

Malcolm Fridlund ^{24, 25}

David Futyan ³

Davide Gandolfi ²⁶

Antonio García Muñoz ²⁷

Michaël Gillon ¹

Manuel Guedel ²⁸

Kevin Heng ²⁰

Laszlo Kiss ^{29, 30, 31}

Jacques Laskar ³²

Alain Lecavelier des Etangs ³³

Monika Lendl ^{3, 5}

Christophe Lovis ³

Pierre F. L. Maxted ³⁴

Valerio Nascimbeni ⁶

Göran Olofsson ¹¹

Hugh P. Osborn ^{35, 36}

I. Pagano ³⁷

Enric Pallé ^{14, 15}

Giampaolo Piotto ^{6, 38}

Don Pollacco ³⁹

Didier Queloz ^{3, 40}

Heike Rauer ^{22, 27, 41}

Roberto Ragazzoni ⁶

Ignasi Ribas ^{16, 17}

Nuno C. Santos ^{9, 10}

Gaetano Scandariato ³⁷

Damien Ségransan ³

Attila E. Simon ⁴

A. M. S. Smith ²²

Manfred Steller ⁵

Gyula M. Szabó ^{42, 43}

Nicolas Thomas ⁴

Stéphane Udry ³

N. A. Walton ⁴⁴

Hide authors affiliations Show authors affiliations: 44 affiliations

Astrobiology Research Unit, Université de Liège, Liège, Belgium |

Space sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, Liège, Belgium |

Observatoire de Genève, Université de Genève, Versoix, Switzerland |

⁴

Physikalisches Institut, University of Bern, Bern, Switzerland |

⁵

Space Research Institute, Austrian Academy of Sciences, Graz, Austria |

⁶

INAF, Osservatorio Astronomico di Padova, Padova, Italy

National Institute for Astrophysics

Astronomical Observatory of Padova

⁷

Aix Marseille University, CNRS, CNES, LAM, Marseille, France |

⁸

Centre for Exoplanet Science, SUPA School of Physics and Astronomy, University of St Andrews, St Andrews, UK |

⁹

Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Porto, Portugal

University of Porto

Instituto de Astrofísica e Ciências do Espaço

¹⁰

Departamento de Física e Astronomia, Faculdade de Ciências, Universidade do Porto, Porto, Portugal |

¹¹

Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden |

¹²

Institut de physique du Globe de Paris (IPGP), Paris, France |

¹³

Division Technique, INSU, La Seyne, France |

¹⁴

Instituto de Astrofïsica de Canarias, La Laguna, Spain |

¹⁵

Departamento de Astrofïsica, Universidad de La Laguna, La Laguna, Spain |

¹⁶

Institut de Ciéncies de l’Espai (ICE, CSIC), Bellaterra, Spain |

¹⁷

Institut d’Estudis Espacials de Catalunya (IEEC), Barcelona, Spain |

¹⁸

Admatis, Miskok, Hungary |

¹⁹

Departamento de Astrofïsica, Centro de Astrobiologia (CSIC-INTA), Villanueva de la Cañada, Spain

Spanish Astrobiology Center

National Institute for Aerospace Technology

²⁰

Center for Space and Habitability, Bern, Switzerland |

²¹

Université Grenoble Alpes, CNRS, IPAG, Grenoble, France |

²²

Institute of Planetary Research, German Aerospace Center (DLR), Berlin, Germany |

²³

Lund Observatory, Department of Astronomy and Theoretical Physics, Lund University, Lund, Sweden |

²⁴

Leiden Observatory, University of Leiden, Leiden, The Netherlands |

²⁵

Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden |

²⁶

INAF, Osservatorio astrofisico di Torino, Pino Torinese, Italy

National Institute for Astrophysics

Astrophysical Observatory of Turin

²⁷

Center for Astronomy and Astrophysics, Technical University Berlin, Berlin, Germany |

²⁸

Department of Astrophysics, University of Vienna, Vienna, Austria |

²⁹

Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Budapest, Hungary

Research Centre for Astronomy and Earth Sciences

Konkoly Observatory

³⁰

Institute of Physics, ELTE Eötvös Loránd University, Budapest, Hungary |

³¹

Sydney Institute for Astronomy, School of Physics A29, University of Sydney, Sydney, Australia |

³²

IMCCE, UMR8028 CNRS, Observatoire de Paris, PSL University, Sorbonne University, Paris, France

Sorbonne University

Observatoire de Paris

Paris Sciences et Lettres

³³

Institut d’Astrophysique de Paris, UMR7095 CNRS, Université Pierre & Marie Curie, Paris, France

Sorbonne University

Paris Institute of Astrophysics

³⁴

Astrophysics Group, Keele University, Keele, UK |

³⁵

NCCR/PlanetS, Centre for Space & Habitability, University of Bern, Bern, Switzerland |

³⁶

Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, USA |

³⁷

INAF, Osservatorio Astrofisico di Catania, Catania, Italy

National Institute for Astrophysics

Catania Astrophysical Observatory

³⁸

Dipartimento di Fisica e Astronomia ‘Galileo Galilei’, Universitá degli Studi di Padova, Padova, Italy |

³⁹

Department of Physics, University of Warwick, Coventry, UK |

⁴⁰

Astrophysics Group, Cavendish Laboratory, University of Cambridge, Cambridge, UK |

⁴¹

Institut für geologische Wissenschaften, Freie Universität Berlin, Berlin, Germany |

⁴²

Gothard Astrophysical Observatory, ELTE Eötvös Loránd University, Szombathely, Hungary |

⁴³

MTA-ELTE Exoplanet Research Group, Szombathely, Hungary |

⁴⁴

Institute of Astronomy, University of Cambridge, Cambridge, UK |

Publication type: Journal Article

Publication date: 2021-06-28

Springer Nature

Nature Astronomy

scimago Q1

wos Q1

SJR: 4.006

CiteScore: 22.9

Impact factor: 14.3

ISSN: 23973366

DOI: 10.1038/s41550-021-01381-5

Copy DOI

Astronomy and Astrophysics

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. Three planets orbit the Sun-like star ν2 Lupi. CHEOPS data show that all of them are transiting and show remarkable diversity. In particular, dry and gas-poor inner planet b has experienced extensive atmospheric loss, while planets c and d are water rich and have a small gaseous envelope of primordial origin.

Found

3 citations

García Antonio

57 publications, 1 557 citations, 1 review

h-index: 18

Paris Cité University

Université Paris-Saclay

1 citation

Schneider Jean

14 publications, 47 citations

h-index: 4

Observatoire de Paris

Research interests

Exoplanets

Philosophy

Top-30

Journals

	5 10 15 20 25 30 35 40 45 50
Astronomy and Astrophysics	Astronomy and Astrophysics, 48, 60% Astronomy and Astrophysics 48 publications, 60%
Monthly Notices of the Royal Astronomical Society	Monthly Notices of the Royal Astronomical Society, 12, 15% Monthly Notices of the Royal Astronomical Society 12 publications, 15%
Astronomical Journal	Astronomical Journal, 8, 10% Astronomical Journal 8 publications, 10%
Astrophysical Journal Letters	Astrophysical Journal Letters, 2, 2.5% Astrophysical Journal Letters 2 publications, 2.5%
Astrophysical Journal, Supplement Series	Astrophysical Journal, Supplement Series, 2, 2.5% Astrophysical Journal, Supplement Series 2 publications, 2.5%
Nature Astronomy	Nature Astronomy, 1, 1.25% Nature Astronomy 1 publication, 1.25%
Earth and Planetary Science Letters	Earth and Planetary Science Letters, 1, 1.25% Earth and Planetary Science Letters 1 publication, 1.25%
Celestial Mechanics and Dynamical Astronomy	Celestial Mechanics and Dynamical Astronomy, 1, 1.25% Celestial Mechanics and Dynamical Astronomy 1 publication, 1.25%
Nature	Nature, 1, 1.25% Nature 1 publication, 1.25%
Universe	Universe, 1, 1.25% Universe 1 publication, 1.25%
Icarus	Icarus, 1, 1.25% Icarus 1 publication, 1.25%
Experimental Astronomy	Experimental Astronomy, 1, 1.25% Experimental Astronomy 1 publication, 1.25%
Astrophysical Journal	Astrophysical Journal, 1, 1.25% Astrophysical Journal 1 publication, 1.25%
	5 10 15 20 25 30 35 40 45 50

Publishers

	5 10 15 20 25 30 35 40 45 50
EDP Sciences	EDP Sciences, 48, 60% EDP Sciences 48 publications, 60%
Oxford University Press	Oxford University Press, 12, 15% Oxford University Press 12 publications, 15%
American Astronomical Society	American Astronomical Society, 11, 13.75% American Astronomical Society 11 publications, 13.75%
Springer Nature	Springer Nature, 4, 5% Springer Nature 4 publications, 5%
IOP Publishing	IOP Publishing, 2, 2.5% IOP Publishing 2 publications, 2.5%
Elsevier	Elsevier, 2, 2.5% Elsevier 2 publications, 2.5%
MDPI	MDPI, 1, 1.25% MDPI 1 publication, 1.25%
	5 10 15 20 25 30 35 40 45 50

We do not take into account publications without a DOI.
Statistics recalculated weekly.

Are you a researcher?

Create a profile to get free access to personal recommendations for colleagues and new articles.

Metrics

Cite this

GOST |

Cite this

GOST Copy

Delrez L. et al. Transit detection of the long-period volatile-rich super-Earth ν2 Lupi d with CHEOPS // Nature Astronomy. 2021. Vol. 5. No. 8. pp. 775-787.

GOST all authors (up to 50) Copy

Delrez L. et al. Transit detection of the long-period volatile-rich super-Earth ν2 Lupi d with CHEOPS // Nature Astronomy. 2021. Vol. 5. No. 8. pp. 775-787.

RIS |

Cite this

RIS

BibTex |

Cite this

BibTex (up to 50 authors) Copy

@article{2021_Delrez,

author = {Laetitia Delrez and David Ehrenreich and Yann Alibert and A. Bonfanti and Luca Borsato and Luca Fossati and Matthew J. Hooton and S. Hoyer and Francisco J Pozuelos and Sébastien Salmon and S. Sulis and Thomas G. Wilson and Vardan Adibekyan and Vincent Bourrier and Alexis Brandeker and Sébastien Charnoz and Adrien Deline and Pascal Guterman and Jonas Haldemann and Nathan Hara and Mahmoudreza Oshagh and Sérgio G. Sousa and Valérie Van Grootel and Roi Alonso and Guillem Anglada-Escudé and Tamas Bárczy and David Barrado and Susana C C Barros and W. Baumjohann and Mathias Beck and Anja Bekkelien and Willy Benz and Nicolas Billot and Xavier Bonfils and Christopher Broeg and J. Cabrera and Andrew Collier Cameron and Melvyn B. Davies and M. Deleuil and Jean-Baptiste Delisle and Olivier D. S. Demangeon and Brice-Olivier Demory and Anders Erikson and A. Fortier and Malcolm Fridlund and David Futyan and Davide Gandolfi and Antonio García Muñoz and Michaël Gillon and Manuel Guedel and others},

title = {Transit detection of the long-period volatile-rich super-Earth ν2 Lupi d with CHEOPS},

journal = {Nature Astronomy},

year = {2021},

volume = {5},

publisher = {Springer Nature},

month = {jun},

url = {https://doi.org/10.1038/s41550-021-01381-5},

number = {8},

pages = {775--787},

doi = {10.1038/s41550-021-01381-5}

}

MLA

Cite this

MLA Copy

Delrez, Laetitia, et al. “Transit detection of the long-period volatile-rich super-Earth ν2 Lupi d with CHEOPS.” Nature Astronomy, vol. 5, no. 8, Jun. 2021, pp. 775-787. https://doi.org/10.1038/s41550-021-01381-5.

Publisher

Springer Nature

Journal

Nature Astronomy

scimago Q1

wos Q1

SJR

4.006

CiteScore

22.9

Impact factor

14.3

ISSN

23973366 (Electronic)

Profiles

Antonio Muñoz García