Discovery of two warm mini-Neptunes with contrasting densities orbiting the young K3V star TOI-815

Psaridi, Angelica and Osborn, Hugh P. and Bouchy, François and Lendl, Monika and Parc, Léna and Billot, Nicolas and Broeg, Christopher and Sousa, Sérgio G. and Adibekyan, Vardan and Attia, Omar and Bonfanti, Andrea and Chakraborty, Hritam and Collins, Karen A. and Davoult, Jeanne and Delgado-Mena, Elisa and Grieves, Nolan and Guillot, Tristan and Heitzmann, Alexis and Helled, Ravit and Hellier, Coel and Jenkins, Jon M. and Knierim, Henrik and Krenn, Andreas and Lissauer, Jack J. and Luque, Rafael and Rapetti, David and Santos, Nuno C. and Suárez, Olga and Venturini, Julia and Wilkin, Francis P. and Wilson, Thomas G. and Winn, Joshua N. and Ziegler, Carl and Zingales, Tiziano and Alibert, Yann and Brandeker, Alexis and Egger, Jo Ann and Gandolfi, Davide and Hooton, Matthew J. and Tuson, Amy and Ulmer-Moll, Solène and Abe, Lyu and Allart, Romain and Alonso Sobrino, Roi and Anderson, David R. and Escudé, Guillem Anglada and Bárczy, Tamás and Barrado Navascues, David and Barros, Susana C. C. and Baumjohann, Wolfgang and Beck, Mathias and Beck, Thomas and Benz, Willy and Bonfils, Xavier and Borsato, Luca and Bourrier, Vincent and Ciardi, David R. and Cameron, Andrew Collier and Charnoz, Sebastien and Cointepas, Marion and Csizmadia, Szilard and Cubillos, Patricio E. and Lo Curto, Gaspare and Davies, Melvyn B. and Daylan, Tansu and Deleuil, Magali and Deline, Adrien and Delrez, Laetitia and Demangeon, Olivier D. S. and Demory, Brice-Olivier and Dorn, Caroline and Dumusque, Xavier and Ehrenreich, David and Erikson, Anders and Lecavelier des Etangs, Alain and de Miguel, Diana and Fortier, Andrea and Fossati, Luca and Frensch, Yolanda G. C. and Fridlund, Malcolm and Gillon, Michaël and Güdel, Manuel and Günther, Maximilian N. and Hagelberg, Janis and Helling, Christiane and Hoyer, Sergio and Isaak, Kate G. and Kiss, Laszlo L. and Lam, Kristine W. F. and Laskar, Jacques and Lavie, Baptiste and Lovis, Christophe and Magrin, Demetrio and Marafatto, Luca and Maxted, Pierre F.L. and McDermott, Scott and Mékarnia, Djamel and Mordasini, Christoph and Murgas, Felipe and Nascimbeni, Valerio and Nielsen, Louise D. and Olofsson, Göran and Ottensamer, Roland and Pagano, Isabella and Palle, Enric and Peter, Gisbert and Piotto, Giampaolo and Pollacco, Don and Queloz, Didier and Ragazzoni, Roberto and Ramos, Devin and Rando, Nicola and Rauer, Heike and Reimers, Christian and Ribas, Ignasi and Seager, Sara and Ségransan, Damien and Scandariato, Gaetano and Simon, Attila E. and Smith, Alexis M. S. and Stalport, Manu and Steller, Manfred and Szabó, Gyula M. and Thomas, Nicolas and Pritchard, Tyler A. and Udry, Stéphane and Corral van Damme, Carlos and Van Grootel, Valérie and Villaver, Eva and Walter, Ingo and Walton, Nicholas and Watkins, Cristilyn N. and West, Richard G. (2024) Discovery of two warm mini-Neptunes with contrasting densities orbiting the young K3V star TOI-815. Astronomy and Astrophysics, 685, A5. EDP Sciences. doi: 10.1051/0004-6361/202348678. ISSN 0004-6361.

PDF - Published version
19MB

Official URL: https://www.aanda.org/articles/aa/full_html/2024/05/aa48678-23/aa48678-23.html

Abstract

We present the discovery and characterization of two warm mini-Neptunes transiting the K3V star TOI-815 in a K–M binary system. Analysis of its spectra and rotation period reveal the star to be young, with an age of 200−200+400 Myr. TOI-8l5b has a 11.2-day period and a radius of 2.94 ± 0.05 R⊕ with transits observed by TESS, CHEOPS, ASTEP, and LCOGT. The outer planet, TOI-8l5c, has a radius of 2.62 ± 0.10 R⊕, based on observations of three nonconsecutive transits with TESS; targeted CHEOPS photometry and radial velocity follow-up with ESPRESSO were required to confirm the 35-day period. ESPRESSO confirmed the planetary nature of both planets and measured masses of 7.6 ± 1.5 M⊕ (ρP = 1.64−0.31+0.33 g cm−3) and 23.5 ± 2.4 M⊕ (ρP = 7.2−1.0+1.1 g cm−3), respectively. Thus, the planets have very different masses, which is unusual for compact multi-planet systems. Moreover, our statistical analysis of mini-Neptunes orbiting FGK stars suggests that weakly irradiated planets tend to have higher bulk densities compared to those undergoing strong irradiation. This could be ascribed to their cooler atmospheres, which are more compressed and denser. Internal structure modeling of TOI-815b suggests it likely has a H-He atmosphere that constitutes a few percent of the total planet mass, or higher if the planet is assumed to have no water. In contrast, the measured mass and radius of TOI-815c can be explained without invoking any atmosphere, challenging planetary formation theories. Finally, we infer from our measurements that the star is viewed close to pole-on, which implies a spin-orbit misalignment at the 3σ level. This emphasizes the peculiarity of the system’s orbital architecture, and probably hints at an eventful dynamical history.

Item URL in elib:

https://elib.dlr.de/209725/

Document Type:

Article

Title:

Discovery of two warm mini-Neptunes with contrasting densities orbiting the young K3V star TOI-815

Authors:

Authors	Institution or Email of Authors	Author's ORCID iD	ORCID Put Code
Psaridi, Angelica	Observatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland	https://orcid.org/0000-0002-4797-2419	UNSPECIFIED
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, Switzerland	UNSPECIFIED	UNSPECIFIED
Bouchy, François	Observatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland	https://orcid.org/0000-0002-7613-393X	UNSPECIFIED
Lendl, Monika	Observatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Versoix, SwitzerlandObservatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland	https://orcid.org/0000-0001-9699-1459	UNSPECIFIED
Parc, Léna	Observatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland	https://orcid.org/0000-0002-7382-1913	UNSPECIFIED
Billot, Nicolas	Observatoire de Genève, Université de Genève, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Broeg, Christopher	Physikalisches Institut, University of Bern, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Sousa, Sérgio G.	Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Porto, Portugal	UNSPECIFIED	UNSPECIFIED
Adibekyan, Vardan	Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Porto, Portugal	UNSPECIFIED	UNSPECIFIED
Attia, Omar	Observatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland	https://orcid.org/0000-0002-7971-7439	UNSPECIFIED
Bonfanti, Andrea	Space Research Institute, Austrian Academy of Sciences, Graz, Austria	UNSPECIFIED	UNSPECIFIED
Chakraborty, Hritam	Observatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Collins, Karen A.	Center for Astrophysics \| Harvard & Smithsonian, 60 Garden Street, Cambridge, MA, 02138, USA	https://orcid.org/0000-0001-6588-9574	UNSPECIFIED
Davoult, Jeanne	Center for Space and Habitability, University of Bern, Gesellschaftsstrasse 6, 3012, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Delgado-Mena, Elisa	Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Rua das Estrelas, P-4150-762 Porto, Portugal	UNSPECIFIED	UNSPECIFIED
Grieves, Nolan	Observatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland	https://orcid.org/0000-0001-8105-0373	UNSPECIFIED
Guillot, Tristan	Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, Nice, CS 3422906304, France	https://orcid.org/0000-0002-7188-8428	UNSPECIFIED
Heitzmann, Alexis	Observatoire astronomique de l'Université de Genève, Chemin Pegasi 51, Versoix 1290, Switzerland	UNSPECIFIED	UNSPECIFIED
Helled, Ravit	Institute for Computational Science, University of Zurich, Zurich, Switzerland	UNSPECIFIED	UNSPECIFIED
Hellier, Coel	Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK	UNSPECIFIED	UNSPECIFIED
Jenkins, Jon M.	NASA Ames Research Center, Moffett Field, CA, 94035, USA	https://orcid.org/0000-0002-4715-9460	UNSPECIFIED
Knierim, Henrik	Institute for Computational Science, University of Zurich, Winterthurerstr. 90, 8057, Zurich, Switzerland	UNSPECIFIED	UNSPECIFIED
Krenn, Andreas	Observatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland; Space Research Institute, Austrian Academy of Sciences, Schmiedl-straße 6, 8042, Graz, Austria	https://orcid.org/0000-0003-3615-4725	UNSPECIFIED
Lissauer, Jack J.	NASA Ames Research Center, Moffett Field, CA, USA ; Geological Sciences Department, Stanford University, CA, USA	UNSPECIFIED	UNSPECIFIED
Luque, Rafael	Department of Astronomy & Astrophysics, University of Chicago, Chicago, IL 60637, USA	UNSPECIFIED	UNSPECIFIED
Rapetti, David	NASA Ames Research Center, Moffett Field, CA, 94035, USA; Research Institute for Advanced Computer Science, Universities Space Research Association, Washington, DC, 20024, USA	UNSPECIFIED	UNSPECIFIED
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, Portugal	UNSPECIFIED	UNSPECIFIED
Suárez, Olga	Université Côte d'Azur, Observatoire de la Côte d'Azur, CNRS, Laboratoire Lagrange, Bd de l'Observatoire, CS 34229, 06304, Nice cedex 4, France	https://orcid.org/0000-0002-3503-3617	UNSPECIFIED
Venturini, Julia	Observatoire astronomique de l'Université de Genève, Chemin Pegasi 51, Versoix 1290, Switzerland	UNSPECIFIED	UNSPECIFIED
Wilkin, Francis P.	Department of Physics and Astronomy, Union College, 807 Union St., Schenectady, NY, 12308, USA	UNSPECIFIED	UNSPECIFIED
Wilson, Thomas G.	Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK	UNSPECIFIED	UNSPECIFIED
Winn, Joshua N.	Department of Astrophysical Sciences, Princeton University, Princeton, NJ, 08544, USA	https://orcid.org/0000-0002-4265-047X	UNSPECIFIED
Ziegler, Carl	Department of Physics, Engineering and Astronomy, Stephen F. Austin State University, 1936 North St, Nacogdoches, TX, 75962, USA	UNSPECIFIED	UNSPECIFIED
Zingales, Tiziano	Dipartimento di Fisica e Astronomia "Galileo Galilei", Università degli Studi di Padova, Vicolo dell'Osservatorio 3, 35122, Padova, Italy; INAF Osservatorio Astronomico di Padova, Vicolo dell' Osservatorio 5, 35122, Padova, Italy	UNSPECIFIED	UNSPECIFIED
Alibert, Yann	Physikalisches Institut, University of Bern, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Brandeker, Alexis	Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden	UNSPECIFIED	UNSPECIFIED
Egger, Jo Ann	Physikalisches Institut, University of Bern, Gesellsschaftstrasse 6, CH-3012 Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Gandolfi, Davide	Dipartimento di Fisica, Universita degli Studi di Torino, via Pietro Giuria 1, I-10125, Torino, Italy	https://orcid.org/0000-0001-8627-9628	UNSPECIFIED
Hooton, Matthew J.	Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK	UNSPECIFIED	UNSPECIFIED
Tuson, Amy	Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UK	UNSPECIFIED	UNSPECIFIED
Ulmer-Moll, Solène	Observatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland; Physikalisches Institut, University of Bern, Gesellschaftsstrasse 6, 3012, Bern, Switzerland	https://orcid.org/0000-0003-2417-7006	UNSPECIFIED
Abe, Lyu	Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, Nice, CS 3422906304, France	UNSPECIFIED	UNSPECIFIED
Allart, Romain	Département de Physique, Institut Trottier de Recherche sur les Exoplanètes, Université de Montréal, Montréal, Québec, H3T 1J4, Canada	UNSPECIFIED	UNSPECIFIED
Alonso Sobrino, Roi	Instituto de Astrof ́ısica de Canarias (IAC), E-38205 La Laguna, Tenerife,Spain	UNSPECIFIED	UNSPECIFIED
Anderson, David R.	Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK	UNSPECIFIED	UNSPECIFIED
Escudé, Guillem Anglada	Institut de Ciencies de l'Espai (ICE, CSIC), Campus UAB, Can Magrans s/n, 08193, Bellaterra, Spain; Institut d'Estudis Espacials de Catalunya (IEEC), Gran Capità 2-4, 08034, Barcelona, Spain	UNSPECIFIED	UNSPECIFIED
Bárczy, Tamás	Admatis, Miskok, Hungary	UNSPECIFIED	UNSPECIFIED
Barrado Navascues, David	Depto. de Astrofisica, Centro de Astrobiologia (CSIC-INTA), ESAC Campus, E-28692 Villanueva de la Cañada, Madrid, Spain	UNSPECIFIED	UNSPECIFIED
Barros, Susana C. C.	Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, P-4150-762 Porto, Portugal; Departamento de Fisica e Astronomia, Faculdade de Ciencias, Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal	UNSPECIFIED	UNSPECIFIED
Baumjohann, Wolfgang	Space Research Institute, Austrian Academy of Sciences, Graz, Austria	UNSPECIFIED	UNSPECIFIED
Beck, Mathias	Observatoire de Genève, Université de Genève, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Beck, Thomas	University of Berne, Switzerland	UNSPECIFIED	UNSPECIFIED
Benz, Willy	Physikalisches Institut, Universität Bern, Schweiz	UNSPECIFIED	UNSPECIFIED
Bonfils, Xavier	University of Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France	https://orcid.org/0000-0001-9003-8894	UNSPECIFIED
Borsato, Luca	Dipartimento di Fisica e Astronomia, Universita degli Studi di Padova, via Marzolo 8, 35131 Padova, Italy	https://orcid.org/0000-0001-8627-9628	UNSPECIFIED
Bourrier, Vincent	Observatoire de Genève, Université de Genève, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Ciardi, David R.	NASA Exoplanet Science Institute, Caltech/IPAC, Mail Code 100-22, 1200 E. California Boulevard, Pasadena, CA 91125, USA	https://orcid.org/0000-0003-2781-3207	UNSPECIFIED
Cameron, Andrew Collier	Centre for Exoplanet Science, SUPA School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS, UK	UNSPECIFIED	UNSPECIFIED
Charnoz, Sebastien	Institut de Physique du Globe de Paris, France	UNSPECIFIED	UNSPECIFIED
Cointepas, Marion	University of Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France; Observatoire de Genève, Département d'Astronomie, Université de Genève, Chemin Pegasi 51b, 1290 Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Csizmadia, Szilard	UNSPECIFIED	https://orcid.org/0000-0001-6803-9698	UNSPECIFIED
Cubillos, Patricio E.	INAF - Osservatorio Astrofisico di Torino, Turin, Italy ; Space Research Institute, Austrian Academy of Sciences, Graz, Austria	UNSPECIFIED	UNSPECIFIED
Lo Curto, Gaspare	European Southern Observatory, Av. Alonso de Cordova 3107, Casilla, 19001, Santiago de Chile, Chile	UNSPECIFIED	UNSPECIFIED
Davies, Melvyn B.	Centre for Mathematical Sciences, Lund University, Box 118, SE-22100 Lund, Sweden	UNSPECIFIED	UNSPECIFIED
Daylan, Tansu	Department of Physics and McDonnell Center for the Space Sciences, Washington University, St. Louis, MO, 63130, USA	UNSPECIFIED	UNSPECIFIED
Deleuil, Magali	Aix-Marseille Université, CNRS, CNES, LAM, Marseilles, France	UNSPECIFIED	UNSPECIFIED
Deline, Adrien	Observatoire de Genève, Université de Genève, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Delrez, Laetitia	Astrobiology 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 Astronomiqu	UNSPECIFIED	UNSPECIFIED
Demangeon, Olivier D. S.	Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Rua das Estrelas, P-4150-762 Porto, Portugal; Departamento de Física e Astronomia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal	UNSPECIFIED	UNSPECIFIED
Demory, Brice-Olivier	Center for Space and Habitability, University of Bern, Bern, Switzerland ; Space and Planetary Sciences, Institute of Physics, University of Bern, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Dorn, Caroline	Institute for Computational Science, University of Zurich, Zurich, Switzerland	UNSPECIFIED	UNSPECIFIED
Dumusque, Xavier	Observatoire Astronomique de l'Université de Genéve, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Ehrenreich, David	University of Geneva, Switzerland	UNSPECIFIED	UNSPECIFIED
Erikson, Anders	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Lecavelier des Etangs, Alain	Institut d Astrophysique de Paris, CNRS, UMR 7095 & Sorbonne Universites, UPMC Paris 6, 98 bis bd Arago, 75014 Paris, France	UNSPECIFIED	UNSPECIFIED
de Miguel, Diana	Airbus Defence and Space SAU, C/ Aviocar 2, 28906, Getafe, Madrid, Spain	UNSPECIFIED	UNSPECIFIED
Fortier, Andrea	Center for Space and Habitability, University of Bern, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Fossati, Luca	Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8041 Graz, Austria 0000-0003-4426-9530	UNSPECIFIED	UNSPECIFIED
Frensch, Yolanda G. C.	Observatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Fridlund, Malcolm	Department 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 0000-0003-2180-9936	UNSPECIFIED	UNSPECIFIED
Gillon, Michaël	Astrobiology Research Unit, Université de Liège, 19C Allée du 6 Août, B-4000 Liège, Belgium	UNSPECIFIED	UNSPECIFIED
Güdel, Manuel	Institute for Astronomy, University of Vienna, Türkenschanzstr. 17, A-1180 Vienna, Austria	UNSPECIFIED	UNSPECIFIED
Günther, Maximilian N.	European Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands	UNSPECIFIED	UNSPECIFIED
Hagelberg, Janis	Observatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland	https://orcid.org/0000-0002-1096-1433	UNSPECIFIED
Helling, Christiane	Space Research Institute, Austrian Academy of Sciences, Graz, Austria	UNSPECIFIED	UNSPECIFIED
Hoyer, Sergio	Aix Marseille Univ, CNRS, CNES, LAM, 38 rue Frédéric Joliot-Curie, 13388 Marseille, France	https://orcid.org/0000-0003-3477-2466	UNSPECIFIED
Isaak, Kate G.	Science and Operations Department - Science Division (SCI-SC), Directorate of Science, European Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Keplerlaan 1, NL-2201 AZ Noordwijk, the Netherlands	UNSPECIFIED	UNSPECIFIED
Kiss, Laszlo L.	Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, 1121 Budapest, Konkoly Thege Miklós út 15-17, Hungary; ELTE Eötvös Loránd University, Institute of Physics, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary	UNSPECIFIED	UNSPECIFIED
Lam, Kristine W. F.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Laskar, Jacques	IMCCE, UMR8028 CNRS, Observatoire de Paris, PSL Univ.,Sorbonne Univ., 77 av. Denfert-Rochereau, 75014 Paris, France	UNSPECIFIED	UNSPECIFIED
Lavie, Baptiste	Observatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Lovis, Christophe	Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Magrin, Demetrio	INAF, Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I-35122 Padova, Italy	UNSPECIFIED	UNSPECIFIED
Marafatto, Luca	INAF Osservatorio Astronomico di Padova, Vicolo dell' Osservatorio 5, 35122, Padova, Italy	UNSPECIFIED	UNSPECIFIED
Maxted, Pierre F.L.	Astrophysics Group, Lennard Jones Building, Keele University, Staffordshire ST5 5BG, UK	UNSPECIFIED	UNSPECIFIED
McDermott, Scott	Proto-Logic LLC, 1718 Euclid Street NW, Washington, DC 20009, USA	UNSPECIFIED	UNSPECIFIED
Mékarnia, Djamel	Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, Nice, CS 3422906304, France	https://orcid.org/0000-0001-5000-7292	UNSPECIFIED
Mordasini, Christoph	Physikalisches Institut, University of Bern, Gesellschaftsstrasse 6, 3012, Bern, Switzerland	https://orcid.org/0000-0002-1013-2811	UNSPECIFIED
Murgas, Felipe	Instituto de Astrof ́ısica de Canarias (IAC), E-38205 La Laguna, Tenerife,Spain	https://orcid.org/0000-0001-9087-1245	UNSPECIFIED
Nascimbeni, Valerio	INAF - Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I-35122 Padova, Italy	UNSPECIFIED	UNSPECIFIED
Nielsen, Louise D.	European Southern Observatory, Karl-Schwarzschild-Straße 2, 85748, Garching bei München, Germany	UNSPECIFIED	UNSPECIFIED
Olofsson, Göran	Department of Astronomy, Stockholm University, AlbaNova University Center, 10691 Stockholm, Sweden	UNSPECIFIED	UNSPECIFIED
Ottensamer, Roland	Department of Astrophysics, University of Vienna, Türkenschanzstrasse 17, A-1180 Vienna, Austria	UNSPECIFIED	UNSPECIFIED
Pagano, Isabella	INAF, Osservatorio Astrofisico di Catania, Catania, Italy	UNSPECIFIED	UNSPECIFIED
Palle, Enric	Instituto de Astrofísica de Canarias (IAC), Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL), Tenerife, Spain	UNSPECIFIED	UNSPECIFIED
Peter, Gisbert	UNSPECIFIED	https://orcid.org/0000-0001-6101-2513	UNSPECIFIED
Piotto, Giampaolo	INAF – Osservatorio Astronomico di Padova, vicolo dell Osservatorio 5, 35122 Padova, Italy	UNSPECIFIED	UNSPECIFIED
Pollacco, Don	Department of Physics, University of Warwick, Coventry, UK; Centre for Exoplanets and Habitability, University of Warwick, Coventry, UK	UNSPECIFIED	UNSPECIFIED
Queloz, Didier	ETH Zurich, Department of Physics, Wolfgang-Pauli-Strasse 2, Zurich CH-8093, Switzerland; Cavendish Laboratory, JJ Thomson Avenue, Cambridge CB3 0HE, UK	UNSPECIFIED	UNSPECIFIED
Ragazzoni, Roberto	INAF - Osservatorio Astronomico di Padova (Italy) ; Univ. degli Studi di Padova (Italy)	UNSPECIFIED	UNSPECIFIED
Ramos, Devin	Department of Physics and Astronomy, Union College, 807 Union St., Schenectady, NY, 12308, USA	UNSPECIFIED	UNSPECIFIED
Rando, Nicola	European Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Keplerlaan 1, NL-2201 AZ Noordwijk, the Netherlands	UNSPECIFIED	UNSPECIFIED
Rauer, Heike	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Reimers, Christian	Department of Astrophysics, University of Vienna, Türkenschanzstrasse 17, 1180, Vienna, Austria	UNSPECIFIED	UNSPECIFIED
Ribas, Ignasi	Institut 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 0000-0002-6689-0312	UNSPECIFIED	UNSPECIFIED
Seager, Sara	Department of Earth, Atmospheric and Planetary Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA; Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Te	https://orcid.org/0000-0002-6892-6948	UNSPECIFIED
Ségransan, Damien	Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290 Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Scandariato, Gaetano	NAF – Osservatorio Astronomico di Palermo, Piazza del Parlamento 1, 90134 Palermo, Italy	UNSPECIFIED	UNSPECIFIED
Simon, Attila E.	Center for Space and Habitability, University of Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Smith, Alexis M. S.	UNSPECIFIED	https://orcid.org/0000-0002-2386-4341	UNSPECIFIED
Stalport, Manu	Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, Switzerland	UNSPECIFIED	UNSPECIFIED
Steller, Manfred	Space Research Institute, Austria	UNSPECIFIED	UNSPECIFIED
Szabó, Gyula M.	Department of Experimental Physics & Astronomical Observatory, University of Szeged, Szeged, Hungary	UNSPECIFIED	UNSPECIFIED
Thomas, Nicolas	Physikalisches Institut, Sidlerstrasse 5, University of Bern, 3012, Bern, Switzerland	https://orcid.org/0000-0002-0146-0071	UNSPECIFIED
Pritchard, Tyler A.	NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD, 20771, USA	UNSPECIFIED	UNSPECIFIED
Udry, Stéphane	Observatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland	https://orcid.org/0000-0001-7576-6236	UNSPECIFIED
Corral van Damme, Carlos	European Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Keplerlaan 1, AZ Noordwijk 2201, the Netherlands	UNSPECIFIED	UNSPECIFIED
Van Grootel, Valérie	Université de Liege, Belgium	UNSPECIFIED	UNSPECIFIED
Villaver, Eva	Instituto de Astrofísica de Canarias, Vía Láctea s/n, Tenerife, La Laguna 38200, Spain; Departamento de Astrofísica, Universidad de La Laguna, Astrofísico Francisco Sanchez s/n, Tenerife, La Laguna 38206, Spain	UNSPECIFIED	UNSPECIFIED
Walter, Ingo	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Walton, Nicholas	Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK	UNSPECIFIED	UNSPECIFIED
Watkins, Cristilyn N.	Center for Astrophysics \| Harvard & Smithsonian, 60 Garden Street, Cambridge, MA, 02138, USA	UNSPECIFIED	UNSPECIFIED
West, Richard G.	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

Date:

2024

Journal or Publication Title:

Astronomy and Astrophysics

Refereed publication:

Yes

Open Access:

Yes

Gold Open Access:

In SCOPUS:

Yes

In ISI Web of Science:

Yes

Volume:

685

DOI:

10.1051/0004-6361/202348678

Page Range:

Publisher:

EDP Sciences

ISSN:

0004-6361

Status:

Published

Keywords:

techniques: photometric, techniques: radial velocities, planets and satellites: composition, planets and satellites: detection, planets and satellites: formation, stars: individual: TOI-815, 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, R - Project CHEOPS

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:

Smith, Dr Alexis M S

Deposited On:

03 Dec 2024 07:53

Last Modified:

05 Dec 2024 11:47

Repository Staff Only: item control page