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Uncovering the true...
Uncovering the true periods of the young sub-Neptunes orbiting TOI-2076
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- Osborn, H. P. (author)
- Massachusetts Institute of Technology (MIT),Universität Bern,University of Bern,Massachusetts Institute of Technology
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- Bonfanti, A. (author)
- Österreichische Akademie der Wissenschaften,Austrian Academy of Sciences
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- Gandolfi, D. (author)
- Universita degli Studi di Torino,University of Turin
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show more...
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- Hedges, C. (author)
- Bay Area Environmental Research Institute (BAER),NASA Ames Research Center
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- Leleu, A. (author)
- Université de Genève,University of Geneva
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- Fortier, A. (author)
- Universität Bern,University of Bern
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- Futyan, D. (author)
- Université de Genève,University of Geneva
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- Gutermann, P. (author)
- Aix-Marseille Université,Aix Marseille University,Institut National des Sciences de l'Univers
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- Maxted, P. F. L. (author)
- Keele University
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- Borsato, L. (author)
- Istituto nazionale di astrofisica (INAF)
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- Collins, K. A. (author)
- Harvard-Smithsonian Center for Astrophysics
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- da Silva, J. Gomes (author)
- Universidade do Porto,University of Porto
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- Maqueo Chew, Y. Gomez (author)
- Universidad Nacional Autónoma de México (UNAM),Universidad Nacional Autonoma de Mexico
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- Hooton, M. J. (author)
- Universität Bern,University of Bern
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- Lendl, M. (author)
- Université de Genève,University of Geneva
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- Parviainen, H. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Salmon, S. (author)
- Université de Genève,University of Geneva
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- Schanche, N. (author)
- Universität Bern,University of Bern
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- Serrano, L. M. (author)
- Universita degli Studi di Torino,University of Turin
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- Sousa, S. G. (author)
- Universidade do Porto,University of Porto
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- Tuson, A. (author)
- University Of Cambridge
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- Ulmer-Moll, S. (author)
- Université de Genève,University of Geneva
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- Van Grootel, V. (author)
- Universite de Liège,University of Liège
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- Wells, R. D. (author)
- Universität Bern,University of Bern
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- Wilson, T. G. (author)
- University of St Andrews
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- Alibert, Y. (author)
- Universität Bern,University of Bern
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- Alonso, R. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Anglada, G. (author)
- Institut d'Estudis Espacials de Catalunya (IEEC),Institute of Space Studies of Catalonia (IEEC),Agencia Estatal Consejo Superior de Investigaciones Científicas,Spanish National Research Council
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- Asquier, J. (author)
- European Space Agency (ESA)
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Barrado y Navascues, D. (author)
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- Baumjohann, W. (author)
- Österreichische Akademie der Wissenschaften,Austrian Academy of Sciences
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- Beck, T. (author)
- Universität Bern,University of Bern
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- Benz, W. (author)
- Universität Bern,University of Bern
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- Biondi, F. (author)
- Max-Planck-Institut für extraterrestrische Physik,Max Planck Institute for Extraterrestrial Physics,Istituto nazionale di astrofisica (INAF)
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- Bonfils, X. (author)
- Université Grenoble Alpes,Grenoble Alpes University
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- Bouchy, F. (author)
- Université de Genève,University of Geneva
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- Brandeker, Alexis (author)
- Stockholms universitet,Institutionen för astronomi
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- Broeg, C. (author)
- Universität Bern,University of Bern
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Barczy, T. (author)
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- Barros, S. C. C. (author)
- Universidade do Porto,University of Porto
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- Cabrera, J. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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Charnoz, S. (author)
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- Cameron, A. Collier (author)
- University of St Andrews
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- Csizmadia, S. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Davies, M.B. (author)
- Lund University,Lunds universitet,Matematik (naturvetenskapliga fakulteten),Matematikcentrum,Institutioner vid LTH,Lunds Tekniska Högskola,Mathematics (Faculty of Sciences),Centre for Mathematical Sciences,Departments at LTH,Faculty of Engineering, LTH
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- Deleuil, M. (author)
- Aix-Marseille Université,Aix Marseille University
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- Delrez, L. (author)
- Universite de Liège,University of Liège
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- Demory, B-O (author)
- Universität Bern,University of Bern
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- Ehrenreich, D. (author)
- Université de Genève,University of Geneva
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- Erikson, A. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Fossati, L. (author)
- Österreichische Akademie der Wissenschaften,Austrian Academy of Sciences
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- Fridlund, Malcolm, 1952 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Gillon, M. (author)
- Universite de Liège,University of Liège
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- Gomez-Munoz, M. A. (author)
- Universidad Nacional Autónoma de México (UNAM),Universidad Nacional Autonoma de Mexico
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- Gudel, M. (author)
- Universität Wien,University of Vienna
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- Heng, K. (author)
- The University of Warwick,Universität Bern,University of Bern
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- Hoyer, S. (author)
- Aix-Marseille Université,Aix Marseille University
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- Isaak, K. G. (author)
- European Space Agency (ESA)
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- Kiss, L. (author)
- Magyar Tudomanyos Akademia,Hungarian Academy of Sciences,Eötvös Loránd University (ELTE)
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- Laskar, J. (author)
- Sorbonne Université,Sorbonne University
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- des Etangs, A. Lecavelier (author)
- Sorbonne Université,Sorbonne University
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- Lovis, C. (author)
- Université de Genève,University of Geneva
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- Magrin, D. (author)
- Istituto nazionale di astrofisica (INAF)
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- Malavolta, L. (author)
- Università Degli Studi di Padova,University of Padua,Istituto nazionale di astrofisica (INAF)
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- McCormac, J. (author)
- The University of Warwick
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- Nascimbeni, V (author)
- Istituto nazionale di astrofisica (INAF)
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- Olofsson, Göran, 1944- (author)
- Stockholms universitet,Institutionen för astronomi
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- Ottensamer, R. (author)
- Universität Wien,University of Vienna
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- Pagano, I (author)
- Istituto nazionale di astrofisica (INAF)
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- Palle, E. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Peter, G. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Piazza, D. (author)
- Universität Bern,University of Bern
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- Piotto, G. (author)
- Università Degli Studi di Padova,University of Padua,Istituto nazionale di astrofisica (INAF)
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- Pollacco, D. (author)
- The University of Warwick
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- Queloz, D. (author)
- University Of Cambridge,Université de Genève,University of Geneva
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- Ragazzoni, R. (author)
- Università Degli Studi di Padova,University of Padua,Istituto nazionale di astrofisica (INAF)
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- Rando, N. (author)
- European Space Agency (ESA)
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- Rauer, H. (author)
- Technische Universität Berlin,Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Reimers, C. (author)
- Universität Wien,University of Vienna
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- Ribas, I (author)
- Institut d'Estudis Espacials de Catalunya (IEEC),Institute of Space Studies of Catalonia (IEEC),Agencia Estatal Consejo Superior de Investigaciones Científicas,Spanish National Research Council
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- Demangeon, O. D. S. (author)
- Universidade do Porto,University of Porto
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- Smith, A. M. S. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Sabin, L. (author)
- Universidad Nacional Autónoma de México (UNAM),Universidad Nacional Autonoma de Mexico
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- Santos, N. (author)
- Universidade do Porto,University of Porto
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- Scandariato, G. (author)
- Istituto nazionale di astrofisica (INAF)
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- Schroffenegger, U. (author)
- Universität Bern,University of Bern
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Schwarz, R. P. (author)
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- Shporer, A. (author)
- Massachusetts Institute of Technology (MIT)
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- Simon, A. E. (author)
- Universität Bern,University of Bern
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- Steller, M. (author)
- Österreichische Akademie der Wissenschaften,Austrian Academy of Sciences
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- Szabo, G. M. (author)
- Eötvös Loránd University (ELTE)
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- Segransan, D. (author)
- Université de Genève,University of Geneva
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- Thomas, N. (author)
- Universität Bern,University of Bern
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- Udry, S. (author)
- Université de Genève,University of Geneva
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- Walter, I (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Walton, N. (author)
- University Of Cambridge,University of Cambridge
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(creator_code:org_t)
- 2022-08-25
- 2022
- English.
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In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 664
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http://dx.doi.org/10...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- Context. TOI-2076 is a transiting three-planet system of sub-Neptunes orbiting a bright (G = 8.9 mag), young (340 +/- 80 Myr) K-type star. Although a validated planetary system, the orbits of the two outer planets were unconstrained as only two non-consecutive transits were seen in TESS photometry. This left 11 and 7 possible period aliases for each. Aims. To reveal the true orbits of these two long-period planets, precise photometry targeted on the highest-probability period aliases is required. Long-term monitoring of transits in multi-planet systems can also help constrain planetary masses through TTV measurements. Methods. We used the MonoTools package to determine which aliases to follow, and then performed space-based and ground-based photometric follow-up of TOI-2076 c and d with CHEOPS, SAINT-EX, and LCO telescopes. Results. CHEOPS observations revealed a clear detection for TOI-2076 c at P = 21.01538(-0.00074)(+0.00084) d, and allowed us to rule out three of the most likely period aliases for TOI-2076 d. Ground-based photometry further enabled us to rule out remaining aliases and confirm the P = 35.12537 +/- 0.00067 d alias. These observations also improved the radius precision of all three sub-Neptunes to 2.518 +/- 0.036, 3.497 +/- 0.043, and 3.232 +/- 0.063 R-circle plus. Our observations also revealed a clear anti-correlated TTV signal between planets b and c likely caused by their proximity to the 2:1 resonance, while planets c and d appear close to a 5:3 period commensurability, although model degeneracy meant we were unable to retrieve robust TTV masses. Their inflated radii, likely due to extended H-He atmospheres, combined with low insolation makes all three planets excellent candidates for future comparative transmission spectroscopy with JWST.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinsk bioteknologi -- Biomedicinsk laboratorievetenskap/teknologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Medical Biotechnology -- Biomedical Laboratory Science/Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Keyword
- stars: individual: TOI-2076
- techniques: photometric
- planets and satellites: detection
- planets and satellites: detection
- stars: individual: TOI-2076
- techniques: photometric
- High resolution transmission electron microscopy
- Orbits
- Planets
- Satellites
- Stars
- Ground based
- High probability
- Long term monitoring
- Neptune
- Outer planets
- Planetary system
- Planets and satellites: detections
- Star: individual: TOI-2076
- Stars: individual: proxima Centauri
- Techniques: photometric
- Photometry
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
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Osborn, H. P.
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Bonfanti, A.
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Gandolfi, D.
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Hedges, C.
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Leleu, A.
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Fortier, A.
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show more...
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Futyan, D.
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Gutermann, P.
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Maxted, P. F. L.
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Borsato, L.
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Collins, K. A.
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da Silva, J. Gom ...
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Maqueo Chew, Y. ...
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Hooton, M. J.
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Lendl, M.
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Parviainen, H.
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Salmon, S.
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Schanche, N.
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Serrano, L. M.
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Sousa, S. G.
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Tuson, A.
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Ulmer-Moll, S.
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Van Grootel, V.
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Wells, R. D.
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Wilson, T. G.
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Alibert, Y.
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Alonso, R.
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Anglada, G.
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Asquier, J.
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Barrado y Navasc ...
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Baumjohann, W.
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Beck, T.
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Benz, W.
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Biondi, F.
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Bonfils, X.
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Bouchy, F.
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Brandeker, Alexi ...
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Broeg, C.
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Barczy, T.
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Barros, S. C. C.
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Cabrera, J.
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Charnoz, S.
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Cameron, A. Coll ...
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Csizmadia, S.
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Davies, M.B.
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Deleuil, M.
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Delrez, L.
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Demory, B-O
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Ehrenreich, D.
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Erikson, A.
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Fossati, L.
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Fridlund, Malcol ...
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Gillon, M.
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Gomez-Munoz, M. ...
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Gudel, M.
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Heng, K.
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Hoyer, S.
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Isaak, K. G.
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Kiss, L.
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Laskar, J.
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des Etangs, A. L ...
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Lovis, C.
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Magrin, D.
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Malavolta, L.
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McCormac, J.
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Nascimbeni, V
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Olofsson, Göran, ...
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Ottensamer, R.
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Pagano, I
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Palle, E.
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Peter, G.
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Piazza, D.
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Piotto, G.
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Pollacco, D.
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Queloz, D.
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Ragazzoni, R.
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Rando, N.
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Rauer, H.
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Reimers, C.
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Ribas, I
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Demangeon, O. D. ...
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Smith, A. M. S.
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Sabin, L.
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Santos, N.
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Scandariato, G.
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Schroffenegger, ...
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Schwarz, R. P.
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Shporer, A.
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Simon, A. E.
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Steller, M.
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Szabo, G. M.
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Segransan, D.
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Thomas, N.
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Udry, S.
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Walter, I
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Walton, N.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Medical Biotechn ...
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and Biomedical Labor ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Electrical Engin ...
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and Signal Processin ...
- Articles in the publication
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Astronomy and As ...
- By the university
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Chalmers University of Technology
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Lund University
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Stockholm University