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Connecting photometric and spectroscopic granulation signals with CHEOPS and ESPRESSO

Sulis, S. and Lendl, M. and Cegla, H. M. and Rodriguez Diaz, L. F. and Bigot, L. and Van Grootel, V. and Bekkelien, A. and Collier Cameron, A. and Maxted, P. F. L. and Simon, A. E. and Lovis, C. and Scandariato, G. and Bruno, G. and Nardiello, D. and Bonfanti, A. and Fridlund, M. and Persson, C. M. and Salmon, S. and Sousa, S. G. and Wilson, T. G. and Krenn, A. and Hoyer, S. and Santerne, A. and Ehrenreich, D. and Alibert, Y. and Alonso, R. and Anglada Escudé, G. and Bàrczy, T. and Barrado y Navascués, D. and Barros, S. C. C. and Baumjohann, W. and Beck, M. and Beck, T. and Benz, W. and Billot, N. and Bonfils, X. and Borsato, L. and Brandeker, A. and Broeg, C. and Cabrera, J. and Charnoz, S. and Corral Van Damme, C. and Csizmadia, Sz. and Davies, M. B. and Deleuil, M. and Deline, A. and Delrez, L. and Demangeon, O. D. S. and Demory, B. -O. and Erikson, A. and Fortier, A. and Fossati, L. and Gandolfi, D. and Gillon, M. and Güdel, M. and Heng, K. and Isaak, K. G. and Kiss, L. L. and Laskar, J. and Lecavelier des Etangs, A. and Magrin, D. and Munari, M. and Nascimbeni, V. and Olofsson, G. and Ottensamer, R. and Pagano, I. and Palle, E. and Peter, G. and Piotto, G. and Pollacco, D. and Queloz, D. and Ragazzoni, R. and Rando, N. and Rauer, H. and Ribas, I. and Rieder, M. and Santos, N. C. and Segransan, D. and Smith, A. M. S. and Steinberger, M. and Steller, M. and Szabó, Gy. M. and Thomas, N. and Udry, S. and Walton, N. A. and Wolter, D. (2023) Connecting photometric and spectroscopic granulation signals with CHEOPS and ESPRESSO. Astronomy & Astrophysics, 670, A24. EDP Sciences. doi: 10.1051/0004-6361/202244223. ISSN 0004-6361.

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Official URL: https://www.aanda.org/articles/aa/full_html/2023/02/aa44223-22/aa44223-22.html

Abstract

Context. Stellar granulation generates fluctuations in photometric and spectroscopic data whose properties depend on the stellar type, composition, and evolutionary state. Characterizing granulation is key for understanding stellar atmospheres and detecting planets. Aims: We aim to detect the signatures of stellar granulation, link spectroscopic and photometric signatures of convection for main-sequence stars, and test predictions from 3D hydrodynamic models. Methods: For the first time, we observed two bright stars (Teff = 5833 and 6205 K) with high-precision observations taken simultaneously with CHEOPS and ESPRESSO. We analyzed the properties of the stellar granulation signal in each individual dataset. We compared them to Kepler observations and 3D hydrodynamic models. While isolating the granulation-induced changes by attenuating and filtering the p-mode oscillation signals, we studied the relationship between photometric and spectroscopic observables. Results: The signature of stellar granulation is detected and precisely characterized for the hotter F star in the CHEOPS and ESPRESSO observations. For the cooler G star, we obtain a clear detection in the CHEOPS dataset only. The TESS observations are blind to this stellar signal. Based on CHEOPS observations, we show that the inferred properties of stellar granulation are in agreement with both Kepler observations and hydrodynamic models. Comparing their periodograms, we observe a strong link between spectroscopic and photometric observables. Correlations of this stellar signal in the time domain (flux versus radial velocities, RV) and with specific spectroscopic observables (shape of the cross-correlation functions) are however difficult to isolate due to S/N dependent variations. Conclusions: In the context of the upcoming PLATO mission and the extreme precision RV surveys, a thorough understanding of the properties of the stellar granulation signal is needed. The CHEOPS and ESPRESSO observations pave the way for detailed analyses of this stellar process.

Item URL in elib:https://elib.dlr.de/194674/
Document Type:Article
Title:Connecting photometric and spectroscopic granulation signals with CHEOPS and ESPRESSO
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Sulis, S.Aix-Marseille Université, CNRS, CNES, Laboratoire d'Astrophysique de Marseille, 38 rue Frédéric Joliot-Curie, 13388, Marseille, FranceUNSPECIFIEDUNSPECIFIED
Lendl, M.Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, SwitzerlandUNSPECIFIEDUNSPECIFIED
Cegla, H. M.Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UKUNSPECIFIEDUNSPECIFIED
Rodriguez Diaz, L. F.Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, 8000, Aarhus C, DenmarkUNSPECIFIEDUNSPECIFIED
Bigot, L.Université Nice Sophia Antipolis, Observatoire de la Côte d'Azur, Département Cassiopée CNRS/UMR 6202, BP 4229, 06304, Nice, FranceUNSPECIFIEDUNSPECIFIED
Van Grootel, V.STAR, Université de Liège, BelgiumUNSPECIFIEDUNSPECIFIED
Bekkelien, A.Observatoire de Genève, University of Geneva, SwitzerlandUNSPECIFIEDUNSPECIFIED
Collier Cameron, A.SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife KY16 9SS, UKhttps://orcid.org/0000-0002-8863-7828UNSPECIFIED
Maxted, P. F. L.Astrophysics Group, Keele University, Staffordshire ST5 5BG, UKUNSPECIFIEDUNSPECIFIED
Simon, A. E.Physikalisches Institut, University of Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Lovis, C.Observatoire de l Universite de Geneve, 51 chemin des Maillettes, 1290 Sauverny, SwitzerlandUNSPECIFIEDUNSPECIFIED
Scandariato, G.INAF, Osservatorio Astrofisico di Catania, Via S. Sofia 78, I-95123 Catania, ItalyUNSPECIFIEDUNSPECIFIED
Bruno, G.INAF, Osservatorio Astrofisico di Catania, Via S. Sofia 78,95123 Catania, ItalyUNSPECIFIEDUNSPECIFIED
Nardiello, D.Dipartimento di Fisica e Astronomia, ’G. Galilei’, Universita degli Studi di Padova, Padova, ItalyUNSPECIFIEDUNSPECIFIED
Bonfanti, A.Space Research Institute, Austrian Academy of Sciences, AustriaUNSPECIFIEDUNSPECIFIED
Fridlund, M.Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, 439 92, Onsala, Sweden; Leiden Observatory, Leiden University, 2333CA, Leiden, The NetherlandsUNSPECIFIEDUNSPECIFIED
Persson, C. M.Chalmers University of Technology, Onsala, SwedenUNSPECIFIEDUNSPECIFIED
Salmon, S.STAR, Université de Liège, BelgiumUNSPECIFIEDUNSPECIFIED
Sousa, S. G.Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, PortugalUNSPECIFIEDUNSPECIFIED
Wilson, T. G.School of Physics and Astronomy, St. Andrews, UKhttps://orcid.org/0000-0001-8749-1962UNSPECIFIED
Krenn, A.Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8042 Graz, AustriaUNSPECIFIEDUNSPECIFIED
Hoyer, S.Laboratoire d’Astrophysique de Marseille, Univ. de Provence, FranceUNSPECIFIEDUNSPECIFIED
Santerne, A.Aix Marseille Universite, CNRS, LAM (Laboratoire d Astrophysique de Marseille) UMR 7326, 13388, Marseille, Francehttps://orcid.org/0000-0002-3586-1316UNSPECIFIED
Ehrenreich, D.Observatoire de Genève, University of Geneva, Switzerlandhttps://orcid.org/0000-0001-9704-5405UNSPECIFIED
Alibert, Y.University of Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Alonso, R.Instituto de Astrofisica de Canarias (IAC), Via Lactea s/n 38200, La Laguna, SpainUNSPECIFIEDUNSPECIFIED
Anglada Escudé, G.Institut de Ciències de l’Espai (ICE, CSIC), Campus UAB, CanMagrans s/n, 08193 Bellaterra, Spain; Institut d’Estudis Espacials de Catalunya (IEEC), 08034 Barcelona,SpainUNSPECIFIEDUNSPECIFIED
Bàrczy, T.Admatis, Miskolc, HungaryUNSPECIFIEDUNSPECIFIED
Barrado y Navascués, D.Depto. de Astrofisica, Centro de Astrobiologia (CSIC-INTA), ESAC campus, E-28692 Villanueva de la Cañada (Madrid), SpainUNSPECIFIEDUNSPECIFIED
Barros, S. C. C.Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, PortugalUNSPECIFIEDUNSPECIFIED
Baumjohann, W.Space Research Institute, Austrian Academy of Sciences, Graz, Austriahttps://orcid.org/0000-0001-6271-0110UNSPECIFIED
Beck, M.Université de Genève, SwitzerlandUNSPECIFIEDUNSPECIFIED
Beck, T.Center for Space and Habitability, University of Bern, Gesellschaftsstraße 6, 3012, Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Benz, W.Physikalisches Institut, Universität Bern, CHUNSPECIFIEDUNSPECIFIED
Billot, N.Observatoire de Genève, University of Geneva, SwitzerlandUNSPECIFIEDUNSPECIFIED
Bonfils, X.Université Grenoble Alpes, FranceUNSPECIFIEDUNSPECIFIED
Borsato, L.Dipartimento di Fisica e Astronomia, Universita degli Studi di Padova, via Marzolo 8, 35131 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Brandeker, A.Department of Astronomy – Stockholm University, SE-106 91 Stockholm, SwedenUNSPECIFIEDUNSPECIFIED
Broeg, C.Physikalisches Institut, University of Bern, Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Cabrera, J.UNSPECIFIEDhttps://orcid.org/0000-0001-6653-5487UNSPECIFIED
Charnoz, S.Université de Paris, Institut de physique du globe de Paris, CNRS, 75005, Paris, FranceUNSPECIFIEDUNSPECIFIED
Corral Van Damme, C.ESA/ESTEC, NiederlandeUNSPECIFIEDUNSPECIFIED
Csizmadia, Sz.UNSPECIFIEDhttps://orcid.org/0000-0001-6803-9698UNSPECIFIED
Davies, M. B.Lund Observatory, Department of Astronomy and Theoretical Physics, Lund University, 22100, Lund, SwedenUNSPECIFIEDUNSPECIFIED
Deleuil, M.Aix Marseille Universite, CNRS, LAM (Laboratoire d Astrophysique de Marseille) UMR 7326, F-13388 Marseille, FranceUNSPECIFIEDUNSPECIFIED
Deline, A.Observatoire de Genève, University of Geneva, SwitzerlandUNSPECIFIEDUNSPECIFIED
Delrez, L.Institut d’Astrophysique et de Geophysique, Universite de Liege, BelgiumUNSPECIFIEDUNSPECIFIED
Demangeon, O. D. S.Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762, Porto, PortugalUNSPECIFIEDUNSPECIFIED
Demory, B. -O.Center for Space and Habitability, Gesellsschaftstrasse 6, 3012, Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Erikson, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fortier, A.Physikalisches Institut, University of Bern, Bern, Switzerlandhttps://orcid.org/0000-0001-8450-3374UNSPECIFIED
Fossati, L.Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8042, Graz, AustriaUNSPECIFIEDUNSPECIFIED
Gandolfi, D.Dipartimento di Fisica, Universita degli Studi di Torino, via Pietro Giuria 1, 10125, Torino, Italyhttps://orcid.org/0000-0001-8627-9628UNSPECIFIED
Gillon, M.Institut d’Astrophysique, Geophysique et Oceanographie, Universite de Liege, B-4000 Liege, BelgiumUNSPECIFIEDUNSPECIFIED
Güdel, M.Department of Astrophysics, University of Vienna, Tuerkenschanzstrasse 17, A-1180 Vienna, AustriaUNSPECIFIEDUNSPECIFIED
Heng, K.Center for Space and Habitability, University of Bern, Gesellschaftsstrasse 6, 3012, Bern, Switzerland; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UKUNSPECIFIEDUNSPECIFIED
Isaak, K. G.ESA/ESTEC, NiederlandeUNSPECIFIEDUNSPECIFIED
Kiss, L. L.Konkoly Observatory, Research Centre for Astronomy and Earth, Budapest, HungaryUNSPECIFIEDUNSPECIFIED
Laskar, J.IMCCE, UMR8028 CNRS, Observatoire de Paris, PSL Univ.,Sorbonne Univ., 77 av. Denfert-Rochereau, 75014 Paris, FranceUNSPECIFIEDUNSPECIFIED
Lecavelier des Etangs, A.Institut d Astrophysique de Paris, CNRS, UMR 7095 & Sorbonne Universites, UPMC Paris 6, 98 bis bd Arago, 75014 Paris, FranceUNSPECIFIEDUNSPECIFIED
Magrin, D.INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Munari, M.INAF – Osservatorio Astrofisico di Catania, Via S.Sofia 78, 95123 Catania, ItalyUNSPECIFIEDUNSPECIFIED
Nascimbeni, V.INAF – Osservatorio Astronomico di Padova, vicolo dell Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Olofsson, G.Department of Astronomy, Stockholm University, AlbaNova University Center, 10691 Stockholm, SwedenUNSPECIFIEDUNSPECIFIED
Ottensamer, R.Dept. of Astrophysics, University of Vienna, AustriaUNSPECIFIEDUNSPECIFIED
Pagano, I.INAF – Osservatorio Astrofisico di Catania, Via S.Sofia 78, 95123 Catania, ItalyUNSPECIFIEDUNSPECIFIED
Palle, E.Instituto de Astrofisica de Canarias (IAC), Via Lactea s/n 38200, La Laguna, SpainUNSPECIFIEDUNSPECIFIED
Peter, G.UNSPECIFIEDhttps://orcid.org/0000-0001-6101-2513UNSPECIFIED
Piotto, G.INAF – Osservatorio Astronomico di Padova, vicolo dell Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Pollacco, D.Department of Physics, University of Warwick, Coventry CV4 7AL, UKUNSPECIFIEDUNSPECIFIED
Queloz, D.ETH Zurich, Department of Physics, Wolfgang-Pauli-Strasse 2, 8093, Zurich, Switzerland; Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UKUNSPECIFIEDUNSPECIFIED
Ragazzoni, R.INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Rando, N.ESA/ESTEC, NiederlandeUNSPECIFIEDUNSPECIFIED
Rauer, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ribas, I.Institut de Ciencies de l Espai (CSIC-IEEC), Carrer de Can Magrans, Campus UAB, E-08193 Bellaterra, SpainUNSPECIFIEDUNSPECIFIED
Rieder, M.Physics Institute, Space Research & Planetary Sciences, University of Bern, Sidlerstr. 5, CH-3012 Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
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, PortugalUNSPECIFIEDUNSPECIFIED
Segransan, D.Observatoire de Geneve, Universite de Geneve, 51 Chemin des Maillettes, 1290 Sauverny, SwitzerlandUNSPECIFIEDUNSPECIFIED
Smith, A. M. S.UNSPECIFIEDhttps://orcid.org/0000-0002-2386-4341UNSPECIFIED
Steinberger, M.Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8042 Graz, AustriaUNSPECIFIEDUNSPECIFIED
Steller, M.Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8042, Graz, AustriaUNSPECIFIEDUNSPECIFIED
Szabó, Gy. M.Department of Experimental Physics & Astronomical Observatory, University of Szeged, Szeged, HungaryUNSPECIFIEDUNSPECIFIED
Thomas, N.Physikalisches Institut, University of Bern, Gesellsschaftstrasse 6, 3012, Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Udry, S.Observatoire de Genève, Sauverny, SwitzerlandUNSPECIFIEDUNSPECIFIED
Walton, N. A.Institute of Astronomy, University of Cambridge, Cambridge, UKUNSPECIFIEDUNSPECIFIED
Wolter, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:2023
Journal or Publication Title:Astronomy & Astrophysics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:670
DOI:10.1051/0004-6361/202244223
Page Range:A24
Publisher:EDP Sciences
ISSN:0004-6361
Status:Published
Keywords:methods: data analysis, Sun: granulation, stars: atmospheres, techniques: photometric, techniques: radial velocities, Astrophysics - Solar and Stellar Astrophysics, 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:25 Apr 2023 14:39
Last Modified:25 Apr 2023 14:39

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