An ultra-short period super-Earth and sub-Neptune spanning the Radius Valley orbiting the kinematic thick disc star TOI-2345

Eschen, Yoshi Nike Emilia and Wilson, Thomas G. and Bonfanti, Andrea and Persson, Carina M. and Sousa, Sérgio G. and Lendl, Monika and Heitzmann, Alexis and Simon, Attila E. and Olofsson, Göran and Castro-González, Amadeo and Egger, Jo Ann and Fossati, Luca and Mustill, Alexander James and Osborn, Hugh P. and Vivien, Hugo G. and Alibert, Yann and Alonso Sobrino, Roi and Bárczy, Tamás and Barrado Navascues, David and Barros, Susana C. C. and Baumjohann, Wolfgang and Benz, Willy and Billot, Nicolas and Borsato, Luca and Brandeker, Alexis and Broeg, Christopher and Buder, Maximilian and Caldwell, Douglas A. and Cameron, Andrew Collier and Correia, Alexandre C. M. and Csizmadia, Szilard and Cubillos, Patricio E. and Davies, Melvyn B. and Deleuil, Magali and Deline, Adrien and Demangeon, Olivier D. S. and Demory, Brice-Olivier and Derekas, Aliz and Edwards, Billy and Ehrenreich, David and Erikson, Anders and Farinato, Jacopo and Fortier, Andrea and Fridlund, Malcolm and Gandolfi, Davide and Gazeas, Kosmas and Gillon, Michaël and Goeke, Robert F. and Güdel, Manuel and Günther, Maximilian N. and Hasiba, Johann and Helling, Ch. and Isaak, Kate G. and Jenkins, Jon M. and Keller, Tatiana and Kiss, Laszlo L. and Kitzmann, Daniel and Korth, Judith and Lam, Kristine W. F. and Laskar, Jacques and Etangs, Alain Lecavelier des and Leleu, Adrien and Magrin, Demetrio and Maxted, Pierre F. L. and Merín, Bruno and Mordasini, Christoph and Nascimbeni, Valerio and Ottensamer, Roland and Pagano, Isabella and Palle, Enric and Peter, Gisbert and Piazza, Daniele and Piotto, Giampaolo and Pollacco, Don and Queloz, Didier and Ragazzoni, Roberto and Rando, Nicola and Ratti, Francesco and Rauer, Heike and Ribas, Ignasi and Santos, Nuno C. and Scandariato, Gaetano and Ségransan, Damien and Shporer, Avi and Smith, Alexis M. S. and Stalport, Manu and Sulis, Sophia and Szabó, Gyula M. and Udry, Stephane and Ulmer-Moll, Solène and Van Grootel, Valérie and Venturini, Julia and Villaver, Eva and Walton, Nicholas A. and Watanabe, David and Wolf, Sebastian and Ziegler, Carl (2025) An ultra-short period super-Earth and sub-Neptune spanning the Radius Valley orbiting the kinematic thick disc star TOI-2345. Monthly Notices of the Royal Astronomical Society, 544 (2), pp. 2614-2636. Oxford University Press. doi: 10.1093/mnras/staf1806. ISSN 0035-8711.

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Abstract

A crucial chemical link between stars and their orbiting exoplanets is thought to exist. If universal, this connection could affect the formation and evolution of all planets. Therefore, this potential vital link needs testing by characterizing exoplanets around chemically-diverse stars. We present the discovery of two planets orbiting the metal-poor, kinematic thick-disc K-dwarf TOI-2345. TOI-2345 b is a super-Earth with a period of 1.05 d and TOI-2345 c is a sub-Neptune with a period of 21 d. In addition to the target being observed in four TESS sectors, we obtained five CHEOPS visits and 26 radial velocities from HARPS. By conducting a joint analysis of all the data, we find TOI-2345 b to have a radius of 1.504+0.047−0.044 R⊕ and a mass of 3.49±0.85 M⊕; and TOI-2345 c to have a radius of 2.451+0.045−0.046 R⊕ and a mass of 7.27+2.27−2.45 M⊕

. To explore chemical links between these planets and their host star, we model their interior structures newly accounting for devolatized stellar abundances. TOI-2345 adds to the limited sample of well-characterized planetary systems around thick disc stars. This system challenges theories of formation and populations of planets around thick disc stars with its Ultra-Short Period super-Earth and the wide period distribution of these two planets spanning the radius valley.

Item URL in elib:

https://elib.dlr.de/220672/

Document Type:

Article

Title:

An ultra-short period super-Earth and sub-Neptune spanning the Radius Valley orbiting the kinematic thick disc star TOI-2345

Authors:

Authors	Institution or Email of Authors	Author's ORCID iD	ORCID Put Code
Eschen, Yoshi Nike Emilia	Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK	UNSPECIFIED	UNSPECIFIED
Wilson, Thomas G.	Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK	UNSPECIFIED	UNSPECIFIED
Bonfanti, Andrea	Space Research Institute, Austrian Academy of Sciences, Graz, Austria	UNSPECIFIED	UNSPECIFIED
Persson, Carina M.	Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden	UNSPECIFIED	UNSPECIFIED
Sousa, Sérgio G.	Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Porto, Portugal	UNSPECIFIED	UNSPECIFIED
Lendl, Monika	Observatoire de Genève, Département d'Astronomie, Université de Genève, Chemin Pegasi 51b, 1290 Versoix, Switzerland	https://orcid.org/0000-0001-9699-1459	UNSPECIFIED
Heitzmann, Alexis	Observatoire astronomique de l'Université de Genève, Chemin Pegasi 51, Versoix 1290, Switzerland	UNSPECIFIED	UNSPECIFIED
Simon, Attila E.	Center for Space and Habitability, University of Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Olofsson, Göran	Department of Astronomy, Stockholm University, AlbaNova University Center, 10691 Stockholm, Sweden	UNSPECIFIED	UNSPECIFIED
Castro-González, Amadeo	Observatoire astronomique de l'Université de Genève, Chemin Pegasi 51, CH-1290 Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Egger, Jo Ann	Physikalisches Institut, University of Bern, Gesellsschaftstrasse 6, CH-3012 Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Fossati, Luca	IWF, Austrian Academy of Sciences, Graz	UNSPECIFIED	UNSPECIFIED
Mustill, Alexander James	Lund Observatory, Department of Astronomy and Theoretical Physics, Lund University, Box 43, SE-22100 Lund, Sweden	UNSPECIFIED	UNSPECIFIED
Osborn, Hugh P.	Center for Space and Habitability, University of Bern, Gesellschaftsstrasse 6, CH-3012 Bern, Switzerland; ETH Zurich, Department of Physics, Wolfgang-Pauli-Strasse 2, CH-8093 Zurich, Switzerland	UNSPECIFIED	UNSPECIFIED
Vivien, Hugo G.	CNRS, CNES, LAM, Aix Marseille Univ., 38 rue Frédéric Joliot-Curie, F-13388 Marseille, France	UNSPECIFIED	UNSPECIFIED
Alibert, Yann	Physikalisches Institut, University of Bern, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Alonso Sobrino, Roi	Instituto de Astrof ́ısica de Canarias (IAC), E-38205 La Laguna, Tenerife,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
Benz, Willy	Physikalisches Institut, Universität Bern, Schweiz	UNSPECIFIED	UNSPECIFIED
Billot, Nicolas	Observatoire de Genève, Université de Genève, Versoix, Switzerland	UNSPECIFIED	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
Brandeker, Alexis	Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden	UNSPECIFIED	UNSPECIFIED
Broeg, Christopher	Physikalisches Institut, University of Bern, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Buder, Maximilian	Maximilian.Buder (at) dlr.de	https://orcid.org/0009-0006-9440-236X	199244035
Caldwell, Douglas A.	NASA Ames Research Center, Moffett Field, CA 94035, USA; SETI Institute, 189 Bernardo Ave., Suite 200, Mountain View, CA 94043, USA	UNSPECIFIED	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
Correia, Alexandre C. M.	CFisUC, Departamento de Física, Universidade de Coimbra, P-3004-516 Coimbra, Portugal	UNSPECIFIED	UNSPECIFIED
Csizmadia, Szilard	szilard.csizmadia (at) dlr.de	UNSPECIFIED	UNSPECIFIED
Cubillos, Patricio E.	Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8042 Graz, Austria; INAF ─ Osservatorio Astrofisico di Torino, Via Osservatorio, 20, I-10025 Pino Torinese To, Italy	UNSPECIFIED	UNSPECIFIED
Davies, Melvyn B.	Centre for Mathematical Sciences, Lund University, Box 118, SE-22100 Lund, Sweden	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
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
Derekas, Aliz	Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Eötvös Loránd Research Network (ELKH)	UNSPECIFIED	UNSPECIFIED
Edwards, Billy	SRON Netherlands Institute for Space Research, Niels Bohrweg 4, CA Leiden 2333, the Netherlands	UNSPECIFIED	UNSPECIFIED
Ehrenreich, David	University of Geneva, Switzerland	UNSPECIFIED	UNSPECIFIED
Erikson, Anders	anders.erikson (at) dlr.de	UNSPECIFIED	UNSPECIFIED
Farinato, Jacopo	INAF - Osservatorio Astronomico di Padova (Italy)	UNSPECIFIED	UNSPECIFIED
Fortier, Andrea	Center for Space and Habitability, University of Bern, Bern, 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
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
Gazeas, Kosmas	Department of Physics, University Campus, Zografos GR-157 84, Athens, Greece	UNSPECIFIED	UNSPECIFIED
Gillon, Michaël	Astrobiology Research Unit, Université de Liège, 19C Allée du 6 Août, B-4000 Liège, Belgium	UNSPECIFIED	UNSPECIFIED
Goeke, Robert F.	Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA	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
Hasiba, Johann	Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8042 Graz, Austria	UNSPECIFIED	UNSPECIFIED
Helling, Ch.	Space Research Institute, Austrian Academy of Sciences, Graz, Austria	UNSPECIFIED	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
Jenkins, Jon M.	NASA Ames Research Center, Moffett Field, CA, 94035, USA	UNSPECIFIED	UNSPECIFIED
Keller, Tatiana	Space Research and Planetary Sciences, Physics Institute, University of Bern, Gesellschaftsstrasse 6, CH-3012 Bern, Switzerland; Center for Space and Habitability, University of Bern, Gesellschaftsstrasse 6, CH-3012 Bern, Switzerland	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
Kitzmann, Daniel	Center for Space and Habitability (CSH), Universität Bern, Sidlerstrasse 5, 3012 Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Korth, Judith	Lund Observatory, Division of Astrophysics, Department of Physics, Lund University, Box 118, Lund 22100, Sweden	UNSPECIFIED	UNSPECIFIED
Lam, Kristine W. F.	kristine.lam (at) dlr.de	UNSPECIFIED	UNSPECIFIED
Laskar, Jacques	IMCCE, UMR8028 CNRS, Observatoire de Paris, PSL Univ.,Sorbonne Univ., 77 av. Denfert-Rochereau, 75014 Paris, France	UNSPECIFIED	UNSPECIFIED
Etangs, Alain Lecavelier des	Institut d'astrophysique de Paris, UMR7095 CNRS, Université Pierre & Marie Curie, 98bis blvd. Arago, F-75014 Paris, France	UNSPECIFIED	UNSPECIFIED
Leleu, Adrien	Physikalisches Institut, University of Bern, Gesellsschaftstrasse 6, CH-3012 Bern, Switzerland; Observatoire Astronomique de l'Université de Genève, Chemin Pegasi 51, CH-1290 Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Magrin, Demetrio	INAF	UNSPECIFIED	UNSPECIFIED
Maxted, Pierre F. L.	Astrophysics Group, Keele University, Staffordshire ST5 5BG, UK	UNSPECIFIED	UNSPECIFIED
Merín, Bruno	European Space Agency, ESAC, Spain	UNSPECIFIED	UNSPECIFIED
Mordasini, Christoph	Physikalisches Institut, University of Bern, Gesellschaftsstrasse 6, 3012, Bern, Switzerland	https://orcid.org/0000-0002-1013-2811	UNSPECIFIED
Nascimbeni, Valerio	INAF - Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I-35122 Padova, Italy	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), E-38200 La Laguna, Tenerife, Spain; Department Astrofísica, Universidad de La Laguna (ULL), E-38206 La Laguna, Tenerife, Spain	UNSPECIFIED	UNSPECIFIED
Peter, Gisbert	gisbert.peter (at) dlr.de	https://orcid.org/0000-0001-6101-2513	UNSPECIFIED
Piazza, Daniele	Weltraumforschung und Planetologie, Physikalisches Institut, University of Bern, Gesellschaftsstrasse 6, CH-3012 Bern, Switzerland	UNSPECIFIED	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
Rando, Nicola	European Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Keplerlaan 1, NL-2201 AZ Noordwijk, the Netherlands	UNSPECIFIED	UNSPECIFIED
Ratti, Francesco	European Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Keplerlaan 1, NL-2201 AZ Noordwijk, the Netherlands	UNSPECIFIED	UNSPECIFIED
Rauer, Heike	heike.rauer (at) dlr.de	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
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
Scandariato, Gaetano	NAF – Osservatorio Astronomico di Palermo, Piazza del Parlamento 1, 90134 Palermo, Italy	UNSPECIFIED	UNSPECIFIED
Ségransan, Damien	Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290 Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Shporer, Avi	Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA	UNSPECIFIED	UNSPECIFIED
Smith, Alexis M. S.	alexis.smith (at) dlr.de	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
Sulis, Sophia	Aix Marseille Univ, CNRS, CNES, LAM, Marseille, France	UNSPECIFIED	UNSPECIFIED
Szabó, Gyula M.	Department of Experimental Physics & Astronomical Observatory, University of Szeged, Szeged, Hungary	UNSPECIFIED	UNSPECIFIED
Udry, Stephane	Observatoire Astronomique de l'Université de Genève, 51 Ch. des Maillettes, CH-1290 Versoix, Switzerland	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
Van Grootel, Valérie	Université de Liege, Belgium	UNSPECIFIED	UNSPECIFIED
Venturini, Julia	Observatoire astronomique de l'Université de Genève, Chemin Pegasi 51, Versoix 1290, Switzerland	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
Walton, Nicholas A.	Institute of Astronomy, University of Cambridge, Cambridge, UK	UNSPECIFIED	UNSPECIFIED
Watanabe, David	Planetary Discoveries, Valencia, CA 91354, USA	UNSPECIFIED	UNSPECIFIED
Wolf, Sebastian	Space Research and Planetary Sciences, Physics Institute, University of Bern, Gesellschaftsstrasse 6, CH-3012 Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Ziegler, Carl	Department of Physics, Engineering and Astronomy, Stephen F. Austin State University, 1936 North St, Nacogdoches, TX, 75962, USA	UNSPECIFIED	UNSPECIFIED

Date:

2025

Journal or Publication Title:

Monthly Notices of the Royal Astronomical Society

Refereed publication:

Yes

Open Access:

Yes

Gold Open Access:

Yes

In SCOPUS:

Yes

In ISI Web of Science:

Yes

Volume:

544

DOI:

10.1093/mnras/staf1806

Page Range:

pp. 2614-2636

Publisher:

Oxford University Press

ISSN:

0035-8711

Status:

Published

Keywords:

techniques: photometric - techniques: radial velocities, planets and satellites: detection, planets and satellites: interiors, planets and satellites: individual: TOI-2345 b & c, stars: individual: TOI-2345, 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 , Köln-Porz

Institutes and Institutions:

Institute of Planetary Research > Extrasolar Planets and Atmospheres
Institute of Optical Sensor Systems > Space Instruments
Division of the Chair of the Executive Board

Deposited By:

Smith, Dr Alexis M S

Deposited On:

10 Dec 2025 09:50

Last Modified:

10 Dec 2025 09:50

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