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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 11723naa a2201621 4500 | |
| 001 | oai:research.chalmers.se:e29865be-b056-4a4a-b264-120c9cd2194d | |
| 003 | SwePub | |
| 008 | 211112s2021 | |||||||||||000 ||eng| | |
| 009 | oai:lup.lub.lu.se:b93cc9ae-941d-4727-a475-311d1c750456 | |
| 009 | oai:DiVA.org:su-198754 | |
| 024 | 7 | a https://doi.org/10.1051/0004-6361/2021403452 DOI |
| 024 | 7 | a https://research.chalmers.se/publication/5270122 URI |
| 024 | 7 | a https://lup.lub.lu.se/record/b93cc9ae-941d-4727-a475-311d1c7504562 URI |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1987542 URI |
| 040 | a (SwePub)cthd (SwePub)lud (SwePub)su | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a art2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a Szabó, G.M.u Eötvös Loránd University (ELTE),Eötvös Loránd University4 aut |
| 245 | 1 0 | a The changing face of AU Mic b: Stellar spots, spin-orbit commensurability, and transit timing variations as seen by CHEOPS and TESS |
| 264 | c 2021-10-26 | |
| 264 | 1 | b EDP Sciences,c 2021 |
| 520 | a AU Mic is a young planetary system with a resolved debris disc showing signs of planet formation and two transiting warm Neptunes near mean-motion resonances. Here we analyse three transits of AU Mic b observed with the CHaracterising ExOPlanet Satellite (CHEOPS), supplemented with sector 1 and 27 Transiting Exoplanet Survey Satellite (TESS) photometry, and the All-Sky Automated Survey from the ground. The refined orbital period of AU Mic b is 8.462995 ± 0.000003 d, whereas the stellar rotational period is Prot = 4.8367 ± 0.0006 d. The two periods indicate a 7:4 spin-orbit commensurability at a precision of 0.1%. Therefore, all transits are observed in front of one of the four possible stellar central longitudes. This is strongly supported by the observation that the same complex star-spot pattern is seen in the second and third CHEOPS visits that were separated by four orbits (and seven stellar rotations). Using a bootstrap analysis we find that flares and star spots reduce the accuracy of transit parameters by up to 10% in the planet-to-star radius ratio and the accuracy on transit time by 3-4 min. Nevertheless, occulted stellar spot features independently confirm the presence of transit timing variations (TTVs) with an amplitude of at least 4 min. We find that the outer companion, AU Mic c, may cause the observed TTVs. | |
| 650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Fysikx Annan fysik0 (SwePub)103992 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Other Physics Topics0 (SwePub)103992 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Fysikx Den kondenserade materiens fysik0 (SwePub)103042 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Condensed Matter Physics0 (SwePub)103042 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng |
| 653 | a Planetary systems | |
| 653 | a Planetary systems | |
| 653 | a Extrasolar planets | |
| 653 | a Gold | |
| 653 | a Orbits | |
| 653 | a Surveys | |
| 653 | a Timing circuits | |
| 653 | a Debris disk | |
| 653 | a Exo-planets | |
| 653 | a Neptune | |
| 653 | a Planet formation | |
| 653 | a Planetary system | |
| 653 | a Spin orbits | |
| 653 | a Star spots | |
| 653 | a Stellars | |
| 653 | a Timing variations | |
| 653 | a Transit timing | |
| 653 | a Stars | |
| 700 | 1 | a Gandolfi, D.u Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Brandeker, Alexisu Stockholms universitet,Institutionen för astronomi4 aut0 (Swepub:su)alexis |
| 700 | 1 | a Csizmadia, Szilardu Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Garai, Z.u Slovak Academy of Sciences,Eötvös Loránd University (ELTE)4 aut |
| 700 | 1 | a Billot, N.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Broeg, C.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Ehrenreich, D.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Fortier, A.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Fossati, L.4 aut |
| 700 | 1 | a Hoyer, S.u Laboratoire d'Astrophysique de Marseille4 aut |
| 700 | 1 | a Kiss, L.u The University of Sydney,Eötvös Loránd University (ELTE),Magyar Tudomanyos Akademia,Hungarian Academy of Sciences4 aut |
| 700 | 1 | a des Etangs, A. L.u Institut d 'Astrophysique de Paris4 aut |
| 700 | 1 | a Maxted, P.u Keele University4 aut |
| 700 | 1 | a Ribas, I.u Institut d'Estudis Espacials de Catalunya (IEEC),Institute of Space Studies of Catalonia (IEEC),Institut de Ciències de l'Espai (ICE) - CSIC,Institute of Space Sciences (ICE) - CSIC4 aut |
| 700 | 1 | a Alibert, Y.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Alonso, R.u Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut |
| 700 | 1 | a Escudé, G. A.u Institut de Ciències de l'Espai (ICE) - CSIC,Institute of Space Sciences (ICE) - CSIC,Institut d'Estudis Espacials de Catalunya (IEEC),Institute of Space Studies of Catalonia (IEEC)4 aut |
| 700 | 1 | a Bárczy, T.4 aut |
| 700 | 1 | a Barros, S.C.C.u Universidade do Porto,University of Porto4 aut |
| 700 | 1 | a Davies, Melvyn Bu Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science4 aut0 (Swepub:lu)astr-mda |
| 700 | 1 | a Baumjohann, W.4 aut |
| 700 | 1 | a Beck, M.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Beck, T.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Bekkelien, A.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Bonfils, X.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
| 700 | 1 | a Benz, W.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Borsato, L.u Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Busch, M.-D.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Cabrera, J.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Charnoz, S.u Institut de Physique du Globe de Paris4 aut |
| 700 | 1 | a Collier Cameron, A.u University of St Andrews4 aut |
| 700 | 1 | a Van Damme, C. Corralu European Space Research and Technology Centre (ESA ESTEC)4 aut |
| 700 | 1 | a Davies, M. B.u Lunds universitet,Lund University4 aut |
| 700 | 1 | a Delrez, L.u Universite de Liège,University of Liège4 aut |
| 700 | 1 | a Deleuil, M.u Laboratoire d'Astrophysique de Marseille4 aut |
| 700 | 1 | a Demangeon, O.u Laboratoire d'Astrophysique de Marseille,Universidade do Porto,University of Porto4 aut |
| 700 | 1 | a Demory, B.O.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Erikson, Andersu Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Fridlund, Malcolm,d 1952u Chalmers tekniska högskola,Chalmers University of Technology,Universiteit Leiden (UL),Leiden University (UL)4 aut0 (Swepub:cth)malfri |
| 700 | 1 | a Futyan, D.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Muñoz, A. Garciáu Technische Universität Berlin4 aut |
| 700 | 1 | a Gillon, Michaëlu Universite de Liège,University of Liège4 aut |
| 700 | 1 | a Guedel, M.u Universität Wien,University of Vienna4 aut |
| 700 | 1 | a Guterman, P.u Institut National des Sciences de l'Univers,Laboratoire d'Astrophysique de Marseille4 aut |
| 700 | 1 | a Heng, Kevinu Universität Bern,University of Bern,The University of Warwick4 aut |
| 700 | 1 | a Isaak, K.u European Space Research and Technology Centre (ESA ESTEC)4 aut |
| 700 | 1 | a Lacedelli, G.u Università Degli Studi di Padova,University of Padua,Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Laskar, J.u Observatoire de Paris,Paris Observatory4 aut |
| 700 | 1 | a Lendl, M.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Lovis, C.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Luntzer, A.u Universität Wien,University of Vienna4 aut |
| 700 | 1 | a Magrin, D.u Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Nascimbeni, Valeriou Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Olofsson, Göranu Stockholms universitet,Institutionen för astronomi4 aut0 (Swepub:su)olofsson |
| 700 | 1 | a Osborn, H. P.u Universität Bern,University of Bern,Massachusetts Institute of Technology (MIT)4 aut |
| 700 | 1 | a Ottensamer, R.u Universität Wien,University of Vienna4 aut |
| 700 | 1 | a Pagano, I.u Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Palle, Enricu Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut |
| 700 | 1 | a Peter, G.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Piazza, D.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Piotto, Giampaolo P.u Università Degli Studi di Padova,University of Padua,Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Pollacco, Don L.u The University of Warwick4 aut |
| 700 | 1 | a Queloz, D.u University Of Cambridge,Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Ragazzoni, Robertou Istituto nazionale di astrofisica (INAF),Università Degli Studi di Padova,University of Padua4 aut |
| 700 | 1 | a Rando, N.u European Space Research and Technology Centre (ESA ESTEC)4 aut |
| 700 | 1 | a Rauer, H.u Technische Universität Berlin,Freie Universität Berlin,Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Santos, N. C.u Universidade do Porto,University of Porto4 aut |
| 700 | 1 | a Scandariato, Gaetanou Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Segransan, D.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Serrano, L. M.u Universita degli Studi di Torino,University of Turin4 aut |
| 700 | 1 | a Sicilia, D.u Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Simon, A.E.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Smith, Alexis M. S.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Sousa, S.G.u Universidade do Porto,University of Porto4 aut |
| 700 | 1 | a Steller, Manfred B.4 aut |
| 700 | 1 | a Thomas, Nicolasu Universität Bern,University of Bern4 aut |
| 700 | 1 | a Udry, S.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Van Grootel, V.u Universite de Liège,University of Liège4 aut |
| 700 | 1 | a Walton, N. A.u University Of Cambridge4 aut |
| 700 | 1 | a Wilson, T.G.u University of St Andrews4 aut |
| 710 | 2 | a Eötvös Loránd University (ELTE)b Eötvös Loránd University4 org |
| 773 | 0 | t Astronomy and Astrophysicsd : EDP Sciencesg 654q 654x 0004-6361x 1432-0746 |
| 856 | 4 | u https://elib.dlr.de/145445/1/aa40345-21.pdf |
| 856 | 4 | u http://dx.doi.org/10.1051/0004-6361/202140345y FULLTEXT |
| 856 | 4 8 | u https://doi.org/10.1051/0004-6361/202140345 |
| 856 | 4 8 | u https://research.chalmers.se/publication/527012 |
| 856 | 4 8 | u https://lup.lub.lu.se/record/b93cc9ae-941d-4727-a475-311d1c750456 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-198754 |
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