Discovery of TOI-1260d and the characterization of the multiplanet system

Lam, K. W. F. and Cabrera Perez, J. and Hooton, M. J. and Alibert, Y. and Bonfanti, A. and Beck, M. and Deline, A. and Florén, H. -G. and Simon, A. E. and Fossati, L. and Persson, C. M. and Fridlund, M. and Salmon, S. and Hoyer, S. and Osborn, H. P. and Wilson, T. G. and Georgieva, I. Y. and Nowak, Grzegorz and Luque, R. and Egger, J. A. and Adibekyan, V. and Alonso, R. and Escudé, G. A. and Bàrczy, T. and Barrado, D. and Barros, S. C. C. and Baumjohann, W. and Beck, T. and Bekkelien, A. and Benz, W. and Billot, N. and Bonfils, X. and Brandeker, A. and Broeg, C. and Charnoz, S. and Cameron, A. C. and Csizmadia, Sz. and Davies, M. B. and Deleuil, M. and Delrez, L. and Demangeon, O. D. S. and Demory, B. -O. and Ehrenreich, D. and Erikson, A. and Fortier, A. and Futyan, D. and Gandolfi, D. and Gillon, M. and Guedel, M. and Gutermann, P. and Laskar, J. and Latham, D. W. and Lecavelier des Etangs, A. and Lendl, M. and Lovis, C. and Heng, K. and Isaak, K. G. and Kiss, L. and Magrin, D. and Maxted, P. F. L. and Nascimbeni, V. and Olofsson, G. and Ottensamer, R. and Pagano, I. and Palle, E. and Peter, G. and Piotto, G. and Pollacco, D. and Queloz, D. and Ribas, I. and Ragazzoni, R. and Rando, N. and Rauer, H. and Santos, N. C. and Scandariato, G. and Seager, S. and Segransan, D. and Serrano, L. M. and Smith, A. M. S. and Sousa, S. G. and Steller, M. and Szabo, Gy. M. and Thomas, N. and Udry, S. and Van Grootel, V. and Walton, N. A. and Winn, J. N. (2023) Discovery of TOI-1260d and the characterization of the multiplanet system. Monthly Notices of the Royal Astronomical Society, 519 (1), pp. 1437-1451. Oxford University Press. doi: 10.1093/mnras/stac3639. ISSN 0035-8711.

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Official URL: https://academic.oup.com/mnras/article/519/1/1437/6889532

Abstract

We report the discovery of a third planet transiting the star TOI-1260, previously known to host two transiting sub-Neptune planets with orbital periods of 3.127 and 7.493 d, respectively. The nature of the third transiting planet with a 16.6-d orbit is supported by ground-based follow-up observations, including time-series photometry, high-angular resolution images, spectroscopy, and archival imagery. Precise photometric monitoring with CHEOPS allows to improve the constraints on the parameters of the system, improving our knowledge on their composition. The improved radii of TOI-1260b and TOI-1260c are 2.36 ± 0.06 Rearth, 2.82 ± 0.08 Rearth, respectively while the newly discovered third planet has a radius of 3.09 ± 0.09 Rearth. The radius uncertainties are in the range of 3 per cent, allowing a precise interpretation of the interior structure of the three planets. Our planet interior composition model suggests that all three planets in the TOI-1260 system contains some fraction of gas. The innermost planet TOI-1260b has most likely lost all of its primordial hydrogen-dominated envelope. Planets c and d were also likely to have experienced significant loss of atmospheric through escape, but to a lesser extent compared to planet b.

Item URL in elib:

https://elib.dlr.de/192977/

Document Type:

Article

Title:

Discovery of TOI-1260d and the characterization of the multiplanet system

Authors:

Authors	Institution or Email of Authors	Author's ORCID iD	ORCID Put Code
Lam, K. W. F.	UNSPECIFIED	https://orcid.org/0000-0002-9910-6088	UNSPECIFIED
Cabrera Perez, J.	UNSPECIFIED	https://orcid.org/0000-0001-6653-5487	UNSPECIFIED
Hooton, M. J.	Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK; Physikalisches Institut, University of Bern, Gesellsschaftstrasse 6, 3012, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Alibert, Y.	University of Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Bonfanti, A.	Space Research Institute, Austrian Academy of Sciences, Austria	UNSPECIFIED	UNSPECIFIED
Beck, M.	Observatoire de Genève, University of Geneva, Switzerland	UNSPECIFIED	UNSPECIFIED
Deline, A.	Observatoire de Genève, University of Geneva, Switzerland	UNSPECIFIED	UNSPECIFIED
Florén, H. -G.	Department of Astronomy, Stockholm University, AlbaNova University Center, SE-10691 Stockholm, Sweden	UNSPECIFIED	UNSPECIFIED
Simon, A. E.	Center for Space and Habitability, University of Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Fossati, L.	Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8042 Graz, Austria	https://orcid.org/0000-0003-4426-9530	UNSPECIFIED
Persson, C. M.	Department of Earth and Space Sciences, Chalmers University of Technology, Onsala Space Observatory, 439 92, Onsala, Sweden	UNSPECIFIED	UNSPECIFIED
Fridlund, M.	Leiden Observatory, Leiden University, 2333CA Leiden, The Netherlands; Chalmers University of Technology, Department of Space, Earth and Environment, Onsala Space Observatory, SE-439 92 Onsala, Sweden; Instituto de Astrofísica de Canarias (IAC), 38205 La	UNSPECIFIED	UNSPECIFIED
Salmon, S.	STAR, Université de Liège, Belgium	UNSPECIFIED	UNSPECIFIED
Hoyer, S.	Aix-Marseille Universite, CNRS, CNES, LAM, Marseille, France	UNSPECIFIED	UNSPECIFIED
Osborn, H. P.	Center for Space and Habitability, University of Bern, Gesellschaftsstrasse 6, 3012, Bern, Switzerland; Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA	UNSPECIFIED	UNSPECIFIED
Wilson, T. G.	School of Physics and Astronomy, St. Andrews, UK	https://orcid.org/0000-0001-8749-1962	UNSPECIFIED
Georgieva, I. Y.	Department of Earth and Space Sciences, Chalmers University of Technology, Onsala Space Observatory, 439 92, Onsala, Sweden	UNSPECIFIED	UNSPECIFIED
Nowak, Grzegorz	Instituto de Astrofisica de Canarias, C/ Via Lactea s/n, E-38205 La Laguna, Spain; Departamento de Astrofisica, Universidad de La Laguna, E-38206 La Laguna, Spain 0000-0002-7031-7754	UNSPECIFIED	UNSPECIFIED
Luque, R.	Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, E-18008 Granada, Spain	UNSPECIFIED	UNSPECIFIED
Egger, J. A.	Physikalisches Institut, University of Bern, Gesellschaftsstrasse 6, 3012, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Adibekyan, V.	Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal	UNSPECIFIED	UNSPECIFIED
Alonso, R.	Instituto de Astrofisica de Canarias (IAC), 38205, La Laguna, Tenerife, Spain; Departamento de Astrofisica, Universidad de La Laguna (ULL), 38206, La Laguna, Tenerife, Spain	UNSPECIFIED	UNSPECIFIED
Escudé, G. A.	Institut de Ciències de l’Espai (ICE, CSIC), Campus UAB, Can Magrans s/n, E-08193 Bellaterra, Spain	UNSPECIFIED	UNSPECIFIED
Bàrczy, T.	Admatis, Miskolc, Hungary	UNSPECIFIED	UNSPECIFIED
Barrado, D.	Departamento de Astrofisica, Centro de Astrobiologia (INTA-CSIC), Campus ESAC (ESA)Camino Bajo del Castillo s/n 28692 Villanueva de la Canada, Spain	UNSPECIFIED	UNSPECIFIED
Barros, S. C. C.	Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal	UNSPECIFIED	UNSPECIFIED
Baumjohann, W.	Space Research Institute, Austrian Academy of Sciences, Austria	UNSPECIFIED	UNSPECIFIED
Beck, T.	Center for Space and Habitability, University of Bern, Gesellschaftsstraße 6, 3012, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Bekkelien, A.	Observatoire Astronomique de l'Université de Genève, Chemin Pegasi 51, 1290 Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Benz, W.	Physikalisches Institut, Universität Bern, CH	UNSPECIFIED	UNSPECIFIED
Billot, N.	Observatoire de Genève, University of Geneva, Switzerland	UNSPECIFIED	UNSPECIFIED
Bonfils, X.	Institut de Planétologie et d'Astrophysique, University of Grenoble, France	UNSPECIFIED	UNSPECIFIED
Brandeker, A.	Department of Astronomy – Stockholm University, SE-106 91 Stockholm, Sweden	UNSPECIFIED	UNSPECIFIED
Broeg, C.	Physikalisches Institut, University of Bern, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Charnoz, S.	Université de Paris, Institut de physique du globe de Paris, CNRS, F-75005 Paris, France	UNSPECIFIED	UNSPECIFIED
Cameron, A. C.	School of Physics and Astronomy, University of St. Andrews, Scotland, UK	UNSPECIFIED	UNSPECIFIED
Csizmadia, Sz.	UNSPECIFIED	https://orcid.org/0000-0001-6803-9698	UNSPECIFIED
Davies, M. B.	Lund Observatory, Department of Astronomy and Theoretical Physics, Lund University, 22100, Lund, Sweden	UNSPECIFIED	UNSPECIFIED
Deleuil, M.	Laboratoire d´Astrophysique de Marseille, France	UNSPECIFIED	UNSPECIFIED
Delrez, L.	Institut d’Astrophysique et de Geophysique, Universite de Liege, Belgium	UNSPECIFIED	UNSPECIFIED
Demangeon, O. D. S.	Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762, Porto, Portugal	UNSPECIFIED	UNSPECIFIED
Demory, B. -O.	Center for Space and Habitability, Gesellsschaftstrasse 6, 3012, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Ehrenreich, D.	Observatoire de Genève, University of Geneva, Switzerland	UNSPECIFIED	UNSPECIFIED
Erikson, A.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Fortier, A.	Physikalisches Institut, University of Bern, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Futyan, D.	Observatoire de Genève, University of Geneva, Switzerland	UNSPECIFIED	UNSPECIFIED
Gandolfi, D.	Dipartimento di Fisica, Universita degli Studi di Torino, via Pietro Giuria 1, 10125, Torino, Italy	https://orcid.org/0000-0001-8627-9628	UNSPECIFIED
Gillon, M.	Institut d’Astrophysique et de Geophysique, Universite de Liege, Belgium	UNSPECIFIED	UNSPECIFIED
Guedel, M.	University of Vienna, Department of Astrophysics, Türkenschanzstrasse 17, 1180, Vienna, Austria	UNSPECIFIED	UNSPECIFIED
Gutermann, P.	Aix-Marseille Université, CNRS, CNES, Laboratoire d'Astrophysique de Marseille, 38 rue Frédéric Joliot-Curie, 13388, Marseille, France; Division Technique, Institut National des Sciences de l'Univers (INSU), CS 20330, 83507, La Seyne-sur-Mer, France	UNSPECIFIED	UNSPECIFIED
Laskar, J.	IMCCE, UMR8028 CNRS, Observatoire de Paris, PSL Univ.,Sorbonne Univ., 77 av. Denfert-Rochereau, 75014 Paris, France	UNSPECIFIED	UNSPECIFIED
Latham, D. W.	Harvard-Smithsonian Center for Astrophysics, 60 Garden St, Cambridge, MA 02138, USA	UNSPECIFIED	UNSPECIFIED
Lecavelier des Etangs, A.	Institut d Astrophysique de Paris, CNRS, UMR 7095 & Sorbonne Universites, UPMC Paris 6, 98 bis bd Arago, 75014 Paris, France	UNSPECIFIED	UNSPECIFIED
Lendl, M.	Observatoire de Genève, Université de Genève, Chemin Pegasi, 51, 1290, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Lovis, C.	Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Heng, K.	Center for Space and Habitability, University of Bern, Gesellschaftsstraße 6, 3012, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Isaak, K. G.	ESA/ESTEC, Noordwijk, Niederlande	UNSPECIFIED	UNSPECIFIED
Kiss, L.	Konkoly Observatory, Research Centre for Astronomy and Earth, Budapest, Hungary	UNSPECIFIED	UNSPECIFIED
Magrin, D.	INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, Italy	UNSPECIFIED	UNSPECIFIED
Maxted, P. F. L.	Astrophysics Group, Keele University, Staffordshire ST5 5BG, UK	UNSPECIFIED	UNSPECIFIED
Nascimbeni, V.	INAF, Osservatorio Astrofisico di Catania, Via S. Sofia 78, I-95123 Catania, Italy	UNSPECIFIED	UNSPECIFIED
Olofsson, G.	Department of Astronomy, Stockholm University, AlbaNova University Center, 10691 Stockholm, Sweden	UNSPECIFIED	UNSPECIFIED
Ottensamer, R.	Dept. of Astrophysics, University of Vienna, Austria	UNSPECIFIED	UNSPECIFIED
Pagano, I.	INAF – Osservatorio Astrofisico di Catania, Via S.Sofia 78, 95123 Catania, Italy	UNSPECIFIED	UNSPECIFIED
Palle, E.	Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain \| Departamento de Astrofisica, Universidad de La Laguna, 38206 La Laguna, Spain	UNSPECIFIED	UNSPECIFIED
Peter, G.	UNSPECIFIED	https://orcid.org/0000-0001-6101-2513	UNSPECIFIED
Piotto, G.	INAF – Osservatorio Astronomico di Padova, vicolo dell Osservatorio 5, 35122 Padova, Italy	UNSPECIFIED	UNSPECIFIED
Pollacco, D.	Department 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, UK	UNSPECIFIED	UNSPECIFIED
Queloz, D.	Astrophysics Group, Cavendish Laboratory, J.J. Thomson Avenue, Cambridge, CB3 0HE, UK; ETH Zurich, Department of Physics, Wolfgang-Pauli-Strasse 27, 8093, Zurich, Switzerland	UNSPECIFIED	UNSPECIFIED
Ribas, I.	Institut de Ci`ncies de l’Espai (CSIC-IEEC), Carrer de Can Magrans, Campus UAB, 08193 Bellaterra, Spain	UNSPECIFIED	UNSPECIFIED
Ragazzoni, R.	INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, Italy	UNSPECIFIED	UNSPECIFIED
Rando, N.	ESA/ESTEC, Noordwijk, Niederlande	UNSPECIFIED	UNSPECIFIED
Rauer, H.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Santos, N. C.	Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal; Departamento de Fisica e Astronomia, Faculdade de Ciencias, Universidade do Porto, Rua Campo Alegre, 4169-007 Porto, Portugal	UNSPECIFIED	UNSPECIFIED
Scandariato, G.	INAF, Osservatorio Astrofisico di Catania, Via S. Sofia 78, I-95123 Catania, Italy	UNSPECIFIED	UNSPECIFIED
Seager, S.	Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of A	UNSPECIFIED	UNSPECIFIED
Segransan, D.	Observatoire de Geneve, Universite de Geneve, Switzerland	UNSPECIFIED	UNSPECIFIED
Serrano, L. M.	Dipartimento di Fisica, Università degli Studi di Torino, via Pietro Giuria 1, I-10125, Torino, Italy	UNSPECIFIED	UNSPECIFIED
Smith, A. M. S.	UNSPECIFIED	https://orcid.org/0000-0002-2386-4341	UNSPECIFIED
Sousa, S. G.	Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal	https://orcid.org/0000-0001-9047-2965	UNSPECIFIED
Steller, M.	Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8042 Graz, Austria	UNSPECIFIED	UNSPECIFIED
Szabo, Gy. M.	Department of Experimental Physics & Astronomical Observatory, Szedeg, Hungary	UNSPECIFIED	UNSPECIFIED
Thomas, N.	Physikalisches Institut, University of Bern, Gesellsschaftstrasse 6, 3012, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Udry, S.	Observatoire de Geneve, Universite de Geneve, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland	UNSPECIFIED	UNSPECIFIED
Van Grootel, V.	STAR, Université de Liège, Belgium	UNSPECIFIED	UNSPECIFIED
Walton, N. A.	Institute of Astronomy, University of Cambridge, Cambridge, UK	UNSPECIFIED	UNSPECIFIED
Winn, J. N.	Princeton University, Department of Astrophysical Sciences, 4 Ivy Lane, Princeton, NJ 08544 USA	UNSPECIFIED	UNSPECIFIED

Date:

February 2023

Journal or Publication Title:

Monthly Notices of the Royal Astronomical Society

Refereed publication:

Yes

Open Access:

Yes

Gold Open Access:

In SCOPUS:

Yes

In ISI Web of Science:

Yes

Volume:

519

DOI:

10.1093/mnras/stac3639

Page Range:

pp. 1437-1451

Publisher:

Oxford University Press

ISSN:

0035-8711

Status:

Published

Keywords:

techniques: photometric, techniques: radial velocities, planets and satellites: composition, planets and satellites: detection, planets and satellites: individual: TOI-1260b, c, d, stars: individual: TOI-1260, 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 - Project PLATO - PMC and Science

Location:

Berlin-Adlershof

Institutes and Institutions:

Institute of Planetary Research > Extrasolar Planets and Atmospheres
Institute of Planetary Research > Leitungsbereich PF
Institute of Optical Sensor Systems > Space Instruments

Deposited By:

Lam, Wai Fun

Deposited On:

05 Jan 2023 07:34

Last Modified:

19 Oct 2023 10:11

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