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Glancing through the debris disk: Photometric analysis of DE Boo with CHEOPS

Boldog, A. and Szabo, Gy. M. and Kriskovics, L. and Brandeker, A. and Kiefer, F. and Bekkelien, A. and Guterman, P. and Olofsson, G. and Simon, A. E. and Gandolfi, D. and Serrano, L. M. and Wilson, T. G. and Sousa, S. G. and Lecavelier des Etangs, A. and Alibert, Y. and Alonso, R. and Anglada Escudé, G. and Bandy, T. and Bàrczy, T. and Barrado, 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 Broeg, C. and Buder, M. and Cabrera, J. and Charnoz, S. and Collier Cameron, A. and Corral Van Damme, C. and Csizmadia, Sz. and Davies, M. B. and Deline, A. and Deleuil, M. and Delrez, L. and Demangeon, O. D. S. and Demory, B. -O. and Ehrenreich, D. and Erikson, A. and Farinato, J. and Fortier, A. and Fossati, L. and Fridlund, M. and Gillon, M. and Güdel, M. and Heng, K. and Hoyer, S. and Isaak, K. G. and Kiss, L. L. and Laskar, J. and Lendl, M. and Lovis, C. and Magrin, D. and Maxted, P. F. L. and Mecina, M. and Nascimbeni, V. 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 Santos, N. C. and Scandariato, G. and Segransan, D. and Smith, Alexis M S and Steller, M. and Thomas, N. and Udry, S. and Van Grootel, V. and Walton, N. A. (2023) Glancing through the debris disk: Photometric analysis of DE Boo with CHEOPS. Astronomy & Astrophysics, 671, A127. EDP Sciences. doi: 10.1051/0004-6361/202245101. ISSN 0004-6361.

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Official URL: https://www.aanda.org/articles/aa/full_html/2023/03/aa45101-22/aa45101-22.html

Abstract

Aims: DE Boo is a unique system, with an edge-on view through the debris disk around the star. The disk, which is analogous to the Kuiper belt in the Solar System, was reported to extend from 74 to 84 AU from the central star. The high photometric precision of the Characterising Exoplanet Satellite (CHEOPS) provided an exceptional opportunity to observe small variations in the light curve due to transiting material in the disk. This is a unique chance to investigate processes in the debris disk. Methods: Photometric observations of DE Boo of a total of four days were carried out with CHEOPS. Photometric variations due to spots on the stellar surface were subtracted from the light curves by applying a two-spot model and a fourth-order polynomial. The photometric observations were accompanied by spectroscopic measurements with the 1m RCC telescope at Piszkésteto and with the SOPHIE spectrograph in order to refine the astrophysical parameters of DE Boo. Results: We present a detailed analysis of the photometric observation of DE Boo. We report the presence of nonperiodic transient features in the residual light curves with a transit duration of 0.3-0.8 days. We calculated the maximum distance of the material responsible for these variations to be 2.47 AU from the central star, much closer than most of the mass of the debris disk. Furthermore, we report the first observation of flaring events in this system. Conclusions: We interpreted the transient features as the result of scattering in an inner debris disk around DE Boo. The processes responsible for these variations were investigated in the context of interactions between planetesimals in the system.

Item URL in elib:https://elib.dlr.de/194638/
Document Type:Article
Title:Glancing through the debris disk: Photometric analysis of DE Boo with CHEOPS
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Boldog, A.Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, 1121, Budapest, Konkoly Thege Miklós út 15-17, Hungary ; CSFK, MTA Centre of Excellence, Budapest, Konkoly Thege Miklós út 15-17, 1121, Hungary; MTA-ELTE Exoplanet Research Group, 9700UNSPECIFIEDUNSPECIFIED
Szabo, Gy. M.Department of Experimental Physics & Astronomical Observatory, Szedeg, HungaryUNSPECIFIEDUNSPECIFIED
Kriskovics, L.Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, 1121, Budapest, Konkoly Thege Miklós út 15-17, Hungary; CSFK, MTA Centre of Excellence, Budapest, Konkoly Thege Miklós út 15-17, 1121, HungaryUNSPECIFIEDUNSPECIFIED
Brandeker, A.Department of Astronomy – Stockholm University, SE-106 91 Stockholm, SwedenUNSPECIFIEDUNSPECIFIED
Kiefer, F.Institut d'Astrophysique de Paris, UMR 7095 CNRS, Université Pierre & Marie Curie, 98 Bis Blvd. Arago, 75014, Paris, FrancUNSPECIFIEDUNSPECIFIED
Bekkelien, A.Université de Genève, SwitzerlandUNSPECIFIEDUNSPECIFIED
Guterman, P.Laboratoire d'Astrophysique de Marseille, FranceUNSPECIFIEDUNSPECIFIED
Olofsson, G.Department of Astronomy, Stockholm University, SwedenUNSPECIFIEDUNSPECIFIED
Simon, A. E.Physikalisches Institut, University of Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Gandolfi, D.Dipartimento di Fisica, Universita degli Studi di Torino, via Pietro Giuria 1, 10125, Torino, Italyhttps://orcid.org/0000-0001-8627-9628UNSPECIFIED
Serrano, L. M.Dipartimento di Fisica, Università degli Studi di Torino, via Pietro Giuria 1, I-10125, Torino, ItalyUNSPECIFIEDUNSPECIFIED
Wilson, T. G.School of Physics and Astronomy, St. Andrews, UKhttps://orcid.org/0000-0001-8749-1962UNSPECIFIED
Sousa, S. G.Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, PortugalUNSPECIFIEDUNSPECIFIED
Lecavelier des Etangs, A.Institut d’Astrophysique de Paris, FranceUNSPECIFIEDUNSPECIFIED
Alibert, Y.University of Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Alonso, R.Instituto de Astrofisica de Canarias, E-38205 La Laguna, Tenerife, 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
Bandy, T.Physikalisches Institut,University of Bern, Sidlerstraße 5, CH-3012 Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Bàrczy, T.Admatis, Miskolc, HungaryUNSPECIFIEDUNSPECIFIED
Barrado, D.Departamento de Astrofisica, Centro de Astrobiologia (INTA-CSIC), Campus ESAC (ESA)Camino Bajo del Castillo s/n 28692 Villanueva de la Canada, 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, Graz, AustriaUNSPECIFIEDUNSPECIFIED
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.Université de Genève, SwitzerlandUNSPECIFIEDUNSPECIFIED
Bonfils, X.Université Grenoble Alpes, FranceUNSPECIFIEDUNSPECIFIED
Broeg, C.Physikalisches Institut, University of Bern, Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Buder, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cabrera, J.UNSPECIFIEDhttps://orcid.org/0000-0001-6653-5487UNSPECIFIED
Charnoz, S.Institut de Physique du Globe de Paris, FranceUNSPECIFIEDUNSPECIFIED
Collier Cameron, A.University of St. Andrews, St. Andrews, UKUNSPECIFIEDUNSPECIFIED
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
Deline, A.Observatoire de Genève, University of Geneva, SwitzerlandUNSPECIFIEDUNSPECIFIED
Deleuil, M.Laboratoire d'Astrophysique de Marseille, FranceUNSPECIFIEDUNSPECIFIED
Delrez, L.Institut d Astrophysique et de Geophysique, Universite de LiegeUNSPECIFIEDUNSPECIFIED
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
Ehrenreich, D.Observatoire de Genève, University of Geneva, Switzerlandhttps://orcid.org/0000-0001-9704-5405UNSPECIFIED
Erikson, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Farinato, J.INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Fortier, A.Physikalisches Institut, University of Bern, Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Fossati, L.Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8042, Graz, AustriaUNSPECIFIEDUNSPECIFIED
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 NetherlandsUNSPECIFIEDUNSPECIFIED
Gillon, M.Observatoire de GenèveUNSPECIFIEDUNSPECIFIED
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, SwitzerlandUNSPECIFIEDUNSPECIFIED
Hoyer, S.Laboratoire d’Astrophysique de Marseille, Univ. de Provence, FranceUNSPECIFIEDUNSPECIFIED
Isaak, K. 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, 2201-AZ, Noordwijk, The NetherlandsUNSPECIFIEDUNSPECIFIED
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
Lendl, M.Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, SwitzerlandUNSPECIFIEDUNSPECIFIED
Lovis, C.Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, SwitzerlandUNSPECIFIEDUNSPECIFIED
Magrin, D.INAF, Astronomical Institute, Padua, ItalyUNSPECIFIEDUNSPECIFIED
Maxted, P. F. L.Astrophysics Group, Keele University, Staffordshire ST5 5BG, UKUNSPECIFIEDUNSPECIFIED
Mecina, M.Department of Astrophysics, University of Vienna, Tuerkenschanzstrasse 17, 1180, Vienna, AustriaUNSPECIFIEDUNSPECIFIED
Nascimbeni, V.INAF – Osservatorio Astronomico di Padova, vicolo dell Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Ottensamer, R.University of Vienna, Department of Astrophysics, AustriaUNSPECIFIEDUNSPECIFIED
Pagano, I.INAF – Osservatorio Astrofisico di Catania, Via S.Sofia 78, 95123 Catania, ItalyUNSPECIFIEDUNSPECIFIED
Palle, E.Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain | Departamento de Astrofisica, Universidad de La Laguna, 38206 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.Astrophysics Group, Cavendish Laboratory, J.J. Thomson Avenue, Cambridge, CB3 0HE, UK; ETH Zurich, Department of Physics, Wolfgang-Pauli-Strasse 27, 8093, Zurich, SwitzerlandUNSPECIFIEDUNSPECIFIED
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
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
Scandariato, G.INAF, Osservatorio Astrofisico di Catania, Via S. Sofia 78, I-95123 Catania, ItalyUNSPECIFIEDUNSPECIFIED
Segransan, D.Observatoire de Geneve, Universite de Geneve, SwitzerlandUNSPECIFIEDUNSPECIFIED
Smith, Alexis M SUNSPECIFIEDhttps://orcid.org/0000-0002-2386-4341UNSPECIFIED
Steller, M.Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8042, Graz, AustriaUNSPECIFIEDUNSPECIFIED
Thomas, N.Physikalisches Institut, University of Bern, Gesellsschaftstrasse 6, 3012, Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Udry, S.Observatoire de Genève, Sauverny, SwitzerlandUNSPECIFIEDUNSPECIFIED
Van Grootel, V.STAR, Université de Liège, BelgiumUNSPECIFIEDUNSPECIFIED
Walton, N. A.Institute of Astronomy, University of Cambridge, Cambridge, UKUNSPECIFIEDUNSPECIFIED
Date:17 March 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:671
DOI:10.1051/0004-6361/202245101
Page Range:A127
Publisher:EDP Sciences
ISSN:0004-6361
Status:Published
Keywords:techniques: photometric, methods: data analysis, stars: flare, starspots, circumstellar matter, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar 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 13:24
Last Modified:04 Dec 2023 11:04

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