Discovery of TOI-1260d and the characterization of the multiplanet system-Reference-Cited by-同舟云学术

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

Published:2022-12-12 Issue:1 Volume:519 Page:1437-1451
ISSN:0035-8711
Container-title:Monthly Notices of the Royal Astronomical Society
language:en
Short-container-title:

Author:

Lam K W F¹^ORCID,Cabrera J¹,Hooton M J²³^ORCID,Alibert Y²,Bonfanti A⁴,Beck M⁵,Deline A⁵,Florén H-G⁶,Simon A E²^ORCID,Fossati L⁴,Persson C M⁷,Fridlund M⁷⁸,Salmon S⁵,Hoyer S⁹^ORCID,Osborn H P¹⁰¹¹^ORCID,Wilson T G¹²^ORCID,Georgieva I Y⁷,Nowak Gr¹³¹⁴^ORCID,Luque R¹⁵,Egger J A²,Adibekyan V¹⁶¹⁷,Alonso R¹³¹⁴,Escudé G A¹⁸¹⁹,Bárczy T²⁰,Barrado D²¹,Barros S C C¹⁶¹⁷,Baumjohann W⁴^ORCID,Beck T²,Bekkelien A⁵,Benz W²,Billot N⁵,Bonfils X²²,Brandeker A⁶,Broeg C²¹⁰,Charnoz S²³,Cameron A C¹²^ORCID,Csizmadia Sz¹^ORCID,Davies M B²⁴,Deleuil M⁹,Delrez L²⁵²⁶^ORCID,Demangeon O D S¹⁶¹⁷,Demory B-O¹⁰,Ehrenreich D⁵,Erikson A¹,Fortier A²,Futyan D⁵,Gandolfi D²⁷^ORCID,Gillon M²⁵,Guedel M²⁸,Guterman P⁹²⁹,Laskar J³⁰,Latham D W³¹,Lecavelier des Etangs A³²,Lendl M⁵^ORCID,Lovis C⁴,Heng K¹⁰³³,Isaak K G³⁴,Kiss L³⁵³⁶³⁷,Magrin D³⁸,Maxted P F L³⁹^ORCID,Nascimbeni V⁴⁰,Olofsson G⁶,Ottensamer R²⁸,Pagano I⁴⁰,Pallé E¹³¹⁴,Peter G⁴¹,Piotto G³⁸,Pollacco D³³,Queloz D⁴²³,Ribas I¹⁸¹⁹,Ragazzoni R³⁸⁴³,Rando N⁴⁴,Rauer H¹⁴⁵⁴⁶,Santos N C¹⁶¹⁷,Scandariato G⁴⁰,Seager S¹¹⁴⁷⁴⁸,Ségransan D⁵,Serrano L M²⁷^ORCID,Smith A M S¹,Sousa S G¹⁶^ORCID,Steller M⁴,Szabó Gy M³⁶⁴⁹,Thomas N²,Udry S⁵,Van Grootel V²⁶,Walton N A⁵⁰,Winn. J N⁵¹

Affiliation:

1. Institute of Planetary Research, German Aerospace Center (DLR) , Rutherfordstrasse 2, D-12489 Berlin, Germany

2. Physikalisches Institut, University of Bern , Sidlerstrasse 5, CH-3012 Bern, Switzerland

3. Cavendish Laboratory, JJ Thomson Avenue , Cambridge CB3 0HE, UK

4. Space Research Institute, Austrian Academy of Sciences , Schmiedlstrasse 6, A-8042 Graz, Austria

5. Observatoire Astronomique de l’Université de Genève , Chemin Pegasi 51, 1290 Versoix, Switzerland

6. Department of Astronomy, Stockholm University, AlbaNova University Center , SE-10691 Stockholm, Sweden

7. Department of Space, Earth and Environment, Chalmers University of Technology , Onsala Space Observatory, SE-43992 Onsala, Sweden

8. Leiden Observatory, University of Leiden , PO Box 9513, NL-2300 RA Leiden, the Netherlands

9. Aix Marseille Univ , CNRS, CNES, LAM, 38 rue Fr’ed’eric Joliot-Curie, F-13388 Marseille, France

10. Center for Space and Habitability, University of Bern , Gesellschaftsstrasse 6, CH-3012 Bern, Switzerland

11. Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139, USA

12. Centre for Exoplanet Science, SUPA School of Physics and Astronomy, University of St Andrews , North Haugh, St Andrews KY16 9SS, UK

13. Instituto de Astrofísica de Canarias , E-38200 La Laguna, Tenerife, Spain

14. Departamento de Astrofísica, Universidad de La Laguna , E-38206 La Laguna, Tenerife, Spain

15. Department of Astronomy & Astrophysics, University of Chicago , Chicago, IL 60637, USA

16. Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto , CAUP, Rua das Estrelas, P-4150-762 Porto, Portugal

17. Departamento de Física e Astronomia, Faculdade de Ciências, Universidade do Porto , Rua do Campo Alegre, P-4169-007 Porto, Portugal

18. Institut de Ciències de l’Espai (ICE , CSIC), Campus UAB, Can Magrans s/n, E-08193 Bellaterra, Spain

19. Institut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, Spain

20. Admatis , 5. Kand’o K’alm’an Street, 3534 Miskolc, Hungary

21. Depto. de Astrofísica, Centro de Astrobiología (CSIC-INTA) , ESAC campus, E-28692 Villanueva de la Cañada (Madrid), Spain

22. Université Grenoble Alpes , CNRS, IPAG, F-38000 Grenoble, France

23. Université de Paris, Institut de physique du globe de Paris , CNRS, F-75005 Paris, France

24. Centre for Mathematical Sciences, Lund University , Box 118, 22100 Lund, Sweden

25. Astrobiology Research Unit, Université de Liège , Allée du 6 Août 19C, B-4000 Liège, Belgium

26. Space sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège , Allée du 6 Août 19C, B-4000 Liège, Belgium

27. Dipartimento di Fisica, Università degli Studi di Torino , via Pietro Giuria 1, I-10125, Torino, Italy

28. Department of Astrophysics, University of Vienna , Tuerkenschanzstrasse 17, A-1180 Vienna, Austria

29. Division Technique INSU , BP 330, F-83507 La Seyne cedex, France

30. IMCCE, UMR8028 CNRS, Observatoire de Paris , PSL Univ., Sorbonne Univ., 77 av. Denfert-Rochereau, F-75014 Paris, France

31. Center for Astrophysics, Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA

32. Institut d’astrophysique de Paris , UMR7095 CNRS, Universit’e Pierre & Marie Curie, 98bis blvd. Arago, F-75014 Paris, France

33. Department of Physics, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, UK

34. Science and Operations Department - Science Division (SCI-SC), Directorate of Science, European Space Agency (ESA), European Space Research and Technology Centre (ESTEC) , Keplerlaan 1, CH-2201-AZ Noordwijk, the Netherlands

35. Konkoly Observatory, Research Centre for Astronomy and Earth Sciences , 1121 Budapest, Konkoly Thege Miklós út 15-17, Hungary

36. ELTE Eötvös Loránd University, Institute of Physics , Pázmány Péter sétány 1/A, 1117 Budapest, Hungary

37. Sydney Institute for Astronomy, School of Physics A29, University of Sydney , NSW 2006, Australia

38. INAF, Osservatorio Astronomico di Padova , Vicolo dell’Osservatorio 5, I-35122 Padova, Italy

39. Astrophysics Group, Keele University , Staffordshire ST5 5BG, UK

40. INAF, Osservatorio Astrofisico di Catania , Via S. Sofia 78, I-95123 Catania, Italy

41. Institute of Optical Sensor Systems, German Aerospace Center (DLR) , Rutherfordstrasse 2, D-12489 Berlin, Germany

42. ETH Zurich, Department of Physics , Wolfgang-Pauli-Strasse 2, CH-8093 Zurich, Switzerland

43. Dipartimento di Fisica e Astronomia ’Galileo Galilei’, Universita degli Studi di Padova , Vicolo dell’Osservatorio 3, I-35122 Padova, Italy

44. ESTEC, European Space Agency , NL-2201AZ, Noordwijk, the Netherlands

45. Zentrum für Astronomie und Astrophysik, Technische Universität Berlin , Hardenbergstr. 36, D-10623 Berlin, Germany

46. Institut für Geologische Wissenschaften, Freie Universität Berlin , D-12249 Berlin, Germany

47. Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology , Cambridge, MA 02139, USA

48. Department of Aeronautics and Astronautics , MIT, 77 Massachusetts Avenue, Cambridge, MA 02139, USA

49. MTA-ELTE Exoplanet Research Group , 9700 Szombathely, Szent Imre h. u. 112, Hungary

50. Institute of Astronomy, University of Cambridge , Madingley Road, Cambridge CB3 0HA, UK

51. Department of Astrophysical Sciences, Princeton University , 4 Ivy Ln, Princeton, NJ 08544, USA

Abstract

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 $2.36 \pm 0.06 \rm R_{\oplus }$, $2.82 \pm 0.08 \rm R_{\oplus }$, respectively while the newly discovered third planet has a radius of $3.09 \pm 0.09 \rm R_{\oplus }$. 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.

Funder

European Space Agency

ESA

Deutsche Forschungsgemeinschaft

Swedish National Space Agency

CNES

Science and Technology Facilities Council

UK Space Agency

Spanish Ministry of Science and Innovation

Generalitat de Catalunya

FCT

Fundação para a Ciência e a Tecnologia