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A full transit of v² Lupi d and the search for an exomoon in its Hill sphere with CHEOPS
Ehrenreich, D. and Delrez, L. and Akinsanmi, B. and Wilson, T. G. and Bonfanti, A. and Beck, M. and Benz, W. and Hoyer, S. and Queloz, D. and Alibert, Y. and Charnoz, S. and Collier Cameron, A. and Deline, A. and Hooton, M. J. and Lendl, M. and Olofsson, G. and Sousa, S. G. and Adibekyan, V. and Alonso, R. and Anglada, G. and Barrado, D. and Barros, S. C. C. and Baumjohann, W. and Beck, T. and Bekkelien, A. and Bergomi, M. and Billot, N. and Bonfils, X. and Brandeker, A. and Broeg, C. and Bàrczy, T. and Berta-Thompson, Z. K. and Cabrera, J. and Corral Van Damme, C. and Csizmadia, S. and Davies, M. B. and Deleuil, M. and Demangeon, O. and Demory, B. -O. and Doty, J. P. and Erikson, A. and Fausnaugh, M. M. and Florén, H. -G. and Fortier, A. and Fossati, L. and Fridlund, M. and Futyan, D. and Gandolfi, D. and Gillon, M. and Guterman, P. and Güdel, M. and Heng, K. and Isaak, K. G. and Jäckel, A. and Jenkins, J. M. and Kiss, L. L. and Laskar, J. and Latham, D. W. and Lecavelier des Etangs, A. and Levine, A. M. and Lovis, C. and Magrin, D. and Maxted, P. F. L. and Morgan, E. H. and Nascimbeni, V. and Osborn, H. P. and Ottensamer, R. and Pagano, I. and Palle, E. and Peter, G. and Piotto, G. and Pollacco, D. and Ragazzoni, R. and Rando, N. and Rauer, H. and Ribas, I. and Ricker, G. R. and Salmon, S. and Santos, N. C. and Scandariato, G. and Simon, A. E. and Smith, A. M. S. and Steinberger, M. and Steller, M. and Szabo, G. M. and Segransan, D. and Shporer, A. and Thomas, N. and Tschentscher, M. and Udry, S. and Vanderspek, R. and Van Grootel, V. and Walton, N. A.
(2023)
A full transit of v² Lupi d and the search for an exomoon in its Hill sphere with CHEOPS.
Astronomy and Astrophysics, 671, A154.
EDP Sciences.
doi: 10.1051/0004-6361/202244790.
ISSN 0004-6361.
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PDF
- Published version
11MB |
Official URL: https://www.aanda.org/articles/aa/full_html/2023/03/aa44790-22/aa44790-22.html AbstractThe planetary system around the naked-eye star v2 Lupi (HD 136352; TOI-2011) is composed of three exoplanets with masses of 4.7, 11.2, and 8.6 Earth masses (M⊕). The TESS and CHEOPS missions revealed that all three planets are transiting and have radii straddling the radius gap separating volatile-rich and volatile-poor super-earths. Only a partial transit of planet d had been covered so we re-observed an inferior conjunction of the long-period 8.6 M⊕ exoplanet v2 Lup d with the CHEOPS space telescope. We confirmed its transiting nature by covering its whole 9.1 h transit for the first time. We refined the planet transit ephemeris to P = 107.1361−0.0022+0.0019 days and Tc = 2459009.7759−0.0096+0.0101 BJDTDB, improving by ~40 times on the previously reported transit timing uncertainty. This refined ephemeris will enable further follow-up of this outstanding long-period transiting planet to search for atmospheric signatures or explore the planet's Hill sphere in search for an exomoon. In fact, the CHEOPS observations also cover the transit of a large fraction of the planet's Hill sphere, which is as large as the Earth's, opening the tantalising possibility of catching transiting exomoons. We conducted a search for exomoon signals in this single-epoch light curve but found no conclusive photometric signature of additional transiting bodies larger than Mars. Yet, only a sustained follow-up of v2 Lup d transits will warrant a comprehensive search for a moon around this outstanding exoplanet. Item URL in elib: | https://elib.dlr.de/194653/ |
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Document Type: | Article |
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Title: | A full transit of v² Lupi d and the search for an exomoon in its Hill sphere with CHEOPS |
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Authors: | Authors | Institution or Email of Authors | Author's ORCID iD | ORCID Put Code |
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Ehrenreich, D. | Observatoire de Genève, University of Geneva, Switzerland | https://orcid.org/0000-0001-9704-5405 | UNSPECIFIED | Delrez, L. | Institut d Astrophysique et de Geophysique, Universite de Liege | UNSPECIFIED | UNSPECIFIED | Akinsanmi, B. | Observatoire astronomique de l'Université de Genève, chemin Pegasi 51, 1290, Versoix, Switzerland | UNSPECIFIED | UNSPECIFIED | Wilson, T. G. | School of Physics and Astronomy, St. Andrews, UK | https://orcid.org/0000-0001-8749-1962 | UNSPECIFIED | Bonfanti, A. | Space Research Institute, Austrian Academy of Sciences, Austria | UNSPECIFIED | UNSPECIFIED | Beck, M. | Université de Genève, Switzerland | UNSPECIFIED | UNSPECIFIED | Benz, W. | Physikalisches Institut, Universität Bern, CH | UNSPECIFIED | UNSPECIFIED | Hoyer, S. | Laboratoire d’Astrophysique de Marseille, Univ. de Provence, France | 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 | Alibert, Y. | Physikalisches Institut, University of Bern, Sidlerstrasse 5, 3012, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | Charnoz, S. | Université de Paris, Institut de physique du globe de Paris, CNRS, F-75005 Paris, France | UNSPECIFIED | UNSPECIFIED | Collier Cameron, A. | SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife KY16 9SS, UK | https://orcid.org/0000-0002-8863-7828 | UNSPECIFIED | Deline, A. | Observatoire de Genève, University of Geneva, Switzerland | UNSPECIFIED | 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 | Lendl, M. | Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland; Space Research Institute, Austrian Academy of Sciences, Schmiedlstr. 6, 8042, Graz, Austria | UNSPECIFIED | UNSPECIFIED | Olofsson, G. | Department of Astronomy, Stockholm University, AlbaNova University Center, 10691 Stockholm, Sweden | UNSPECIFIED | UNSPECIFIED | Sousa, S. G. | Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal | 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 | Anglada, G. | Institut de Ciencies de l'Espai (ICE, CSIC), Campus UAB, Can Magrans s/n, 08193, Bellaterra, Spain; Institut d'Estudis Espacials de Catalunya (IEEC), Carrer del Gran Capità, 2, 08034, Barcelona, Spain | 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 | https://orcid.org/0000-0003-2434-3625 | UNSPECIFIED | Baumjohann, W. | Space Research Institute, Austrian Academy of Sciences, Graz, Austria | https://orcid.org/0000-0001-6271-0110 | UNSPECIFIED | Beck, T. | Center for Space and Habitability, University of Bern, Gesellschaftsstraße 6, 3012, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | Bekkelien, A. | Université de Genève, Switzerland | UNSPECIFIED | UNSPECIFIED | Bergomi, M. | INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, Italy | UNSPECIFIED | UNSPECIFIED | Billot, N. | Université de Genève, 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 | Bàrczy, T. | Admatis, Miskolc, Hungary | UNSPECIFIED | UNSPECIFIED | Berta-Thompson, Z. K. | Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, CO 80309, USA | UNSPECIFIED | UNSPECIFIED | Cabrera, J. | UNSPECIFIED | https://orcid.org/0000-0001-6653-5487 | UNSPECIFIED | Corral Van Damme, C. | ESA/ESTEC, Niederlande | UNSPECIFIED | UNSPECIFIED | Csizmadia, S. | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | Davies, M. B. | Lund Observatory, Department of Astronomy and Theoretical Physics, Lund University, 22100, Lund, Sweden | UNSPECIFIED | UNSPECIFIED | Deleuil, M. | Aix Marseille Universite, CNRS, LAM (Laboratoire d Astrophysique de Marseille) UMR 7326, F-13388 Marseille, France | UNSPECIFIED | UNSPECIFIED | Demangeon, O. | Instituto de Astrofisica e Ciencias do Espaco, 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 | Doty, J. P. | Noqsi Aerospace Ltd., 15 Blanchard Avenue, Billerica, MA, 01821, USA | UNSPECIFIED | UNSPECIFIED | Erikson, A. | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | Fausnaugh, M. M. | Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA | UNSPECIFIED | UNSPECIFIED | Florén, H. -G. | Department of Astronomy, Stockholm University, AlbaNova University Center, SE-10691 Stockholm, Sweden | UNSPECIFIED | UNSPECIFIED | Fortier, A. | Physikalisches Institut, University of Bern, Bern, Switzerland | https://orcid.org/0000-0001-8450-3374 | UNSPECIFIED | Fossati, L. | Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8042 Graz, Austria | https://orcid.org/0000-0003-4426-9530 | UNSPECIFIED | Fridlund, M. | Department of Space, Earth and Environment, Onsala Space Observatory, Chalmers University of Technology, SE-439 92, Onsala, Sweden; Leiden Observatory, University of Leiden, PO Box 9513, 2300 RA, Leiden, The Netherlands | 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, Geophysique et Oceanographie, Universite de Liege, B-4000 Liege, Belgium | UNSPECIFIED | UNSPECIFIED | Guterman, P. | Laboratoire d'Astrophysique de Marseille, France | UNSPECIFIED | UNSPECIFIED | Güdel, M. | Department of Astrophysics, University of Vienna, Tuerkenschanzstrasse 17, A-1180 Vienna, Austria | UNSPECIFIED | UNSPECIFIED | Heng, K. | Center for Space and Habitability, University of Bern, Gesellschaftsstraße 6, 3012, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | Isaak, K. G. | ESA/ESTEC, Niederlande | UNSPECIFIED | UNSPECIFIED | Jäckel, A. | Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | Jenkins, J. M. | NASA Ames Research Center, Moffett Field, CA, 94035, USA | UNSPECIFIED | UNSPECIFIED | Kiss, L. L. | Konkoly Observatory, Research Centre for Astronomy and Earth, Budapest, Hungary | 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 | Levine, A. M. | Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA | UNSPECIFIED | UNSPECIFIED | Lovis, C. | Observatoire de l Universite de Geneve, 51 chemin des Maillettes, 1290 Sauverny, Switzerland | UNSPECIFIED | UNSPECIFIED | Magrin, D. | INAF, Astronomical Institute, Padua, Italy | UNSPECIFIED | UNSPECIFIED | Maxted, P. F. L. | Astrophysics Group, Keele University, Staffordshire ST5 5BG, UK | UNSPECIFIED | UNSPECIFIED | Morgan, E. H. | Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA | UNSPECIFIED | UNSPECIFIED | Nascimbeni, V. | INAF – Osservatorio Astronomico di Padova, vicolo dell Osservatorio 5, 35122 Padova, Italy | UNSPECIFIED | UNSPECIFIED | Osborn, H. P. | Physikalisches Institut, University of Bern, Sidlerstrasse 5, 3012, Bern, Switzerland; Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA | UNSPECIFIED | UNSPECIFIED | Ottensamer, R. | University of Vienna, Department of Astrophysics, 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, Coventry CV4 7AL, UK | UNSPECIFIED | UNSPECIFIED | Ragazzoni, R. | INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, Italy | UNSPECIFIED | UNSPECIFIED | Rando, N. | ESA/ESTEC, Niederlande | UNSPECIFIED | UNSPECIFIED | Rauer, H. | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | Ribas, I. | Institut de Ciencies de l Espai (CSIC-IEEC), Carrer de Can Magrans, Campus UAB, E-08193 Bellaterra, Spain | UNSPECIFIED | UNSPECIFIED | Ricker, G. R. | Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA | UNSPECIFIED | UNSPECIFIED | Salmon, S. | STAR, Université de Liège, Belgium | 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 | Simon, A. E. | Center for Space and Habitability, University of Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | Smith, A. M. S. | UNSPECIFIED | https://orcid.org/0000-0002-2386-4341 | UNSPECIFIED | Steinberger, M. | Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8042 Graz, Austria | UNSPECIFIED | UNSPECIFIED | Steller, M. | Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8042, Graz, Austria | UNSPECIFIED | UNSPECIFIED | Szabo, G. M. | Konkoly Observatory, Budapest, Hungary | UNSPECIFIED | UNSPECIFIED | Segransan, D. | Observatoire de Geneve, Universite de Geneve, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland | UNSPECIFIED | UNSPECIFIED | Shporer, A. | Department of Physics and Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA, 02139, USA | UNSPECIFIED | UNSPECIFIED | Thomas, N. | Physikalisches Institut, Uni Bern Siedlerstrasse, Bern, 3012 Switzerland | UNSPECIFIED | UNSPECIFIED | Tschentscher, M. | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | Udry, S. | Observatoire de Genève, Sauverny, Switzerland | UNSPECIFIED | UNSPECIFIED | Vanderspek, R. | Department of Physics and Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA, 02139, USA | 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 |
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Date: | 20 March 2023 |
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Journal or Publication Title: | Astronomy and Astrophysics |
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Refereed publication: | Yes |
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Open Access: | Yes |
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Gold Open Access: | No |
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In SCOPUS: | Yes |
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In ISI Web of Science: | Yes |
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Volume: | 671 |
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DOI: | 10.1051/0004-6361/202244790 |
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Page Range: | A154 |
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Publisher: | EDP Sciences |
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ISSN: | 0004-6361 |
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Status: | Published |
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Keywords: | planets and satellites: detection, planets and satellites: individual: HD 136352, planets and satellites: general, Astrophysics - Earth and Planetary Astrophysics |
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HGF - Research field: | Aeronautics, Space and Transport |
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HGF - Program: | Space |
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HGF - Program Themes: | Space Exploration |
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DLR - Research area: | Raumfahrt |
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DLR - Program: | R EW - Space Exploration |
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DLR - Research theme (Project): | R - CHEOPS Science, R - Project CHEOPS |
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Location: |
Berlin-Adlershof
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Institutes and Institutions: | Institute of Planetary Research > Extrasolar Planets and Atmospheres Institute of Planetary Research > Leitungsbereich PF Institute of Optical Sensor Systems > Space Instruments Institute of Planetary Research > Planetary Sensor Systems |
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Deposited By: |
Smith, Dr Alexis M S
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Deposited On: | 25 Apr 2023 13:41 |
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Last Modified: | 04 Dec 2023 11:22 |
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