WFRF:(Walton Thomas)
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 11751naa a2201561 4500 | |
| 001 | oai:research.chalmers.se:1b89abe9-6a21-431f-a01f-44b38bc8eda0 | |
| 003 | SwePub | |
| 008 | 240103s2023 | |||||||||||000 ||eng| | |
| 009 | oai:lup.lub.lu.se:240a9fed-f686-4158-a1c5-ebfea1a87e61 | |
| 024 | 7 | a https://doi.org/10.1051/0004-6361/2023477792 DOI |
| 024 | 7 | a https://research.chalmers.se/publication/5391912 URI |
| 024 | 7 | a https://lup.lub.lu.se/record/240a9fed-f686-4158-a1c5-ebfea1a87e612 URI |
| 040 | a (SwePub)cthd (SwePub)lu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a art2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a Alonso, R.u Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna,University of La Laguna (ULL)4 aut |
| 245 | 1 0 | a No random transits in CHEOPS observations of HD 139139 *,** |
| 264 | 1 | c 2023 |
| 338 | a electronic2 rdacarrier | |
| 520 | a Context . The star HD 139139 (a.k.a. ‘the Random Transiter’) is a star that exhibited enigmatic transit-like features with no apparent periodicity in K2 data. The shallow depth of the events (-200 ppm - equivalent to transiting objects with radii of -1.5 R⊕ in front of a Sun-like star) and their non-periodicity constitute a challenge for the photometric follow-up of this star. Aims . The goal of this study is to confirm with independent measurements the presence of shallow, non-periodic transit-like features on this object. Methods . We performed observations with CHEOPS for a total accumulated time of 12.75 days, distributed in visits of roughly 20 h in two observing campaigns in years 2021 and 2022. The precision of the data is sufficient to detect 150 ppm features with durations longer than 1.5 h. We used the duration and times of the events seen in the K2 curve to estimate how many events should have been detected in our campaigns, under the assumption that their behaviour during the CHEOPS observations would be the same as in the K2 data of 2017. Results . We do not detect events with depths larger than 150 ppm in our data set. If the frequency, depth, and duration of the events were the same as in the K2 campaign, we estimate the probability of having missed all events due to our limited observing window would be 4.8%. Conclusions . We suggest three different scenarios to explain our results: 1) Our observing window was not long enough, and the events were missed with the estimated 4.8% probability. 2) The events recorded in the K2 observations were time critical, and the mechanism producing them was either not active in the 2021 and 2022 campaigns or created shallower events under our detectability level. 3) The enigmatic events in the K2 data are the result of an unidentified and infrequent instrumental noise in the original data set or its data treatment. | |
| 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 Matematikx Sannolikhetsteori och statistik0 (SwePub)101062 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Mathematicsx Probability Theory and Statistics0 (SwePub)101062 hsv//eng |
| 653 | a peculiar - planets and satellites | |
| 653 | a stars | |
| 653 | a photometric | |
| 653 | a detection - techniques | |
| 653 | a detection - techniques | |
| 653 | a peculiar - planets and satellites | |
| 653 | a photometric | |
| 653 | a stars | |
| 653 | a Photometry | |
| 653 | a Satellites | |
| 653 | a Data set | |
| 653 | a Detection - technique | |
| 653 | a Follow up | |
| 653 | a Independent measurement | |
| 653 | a Non-periodicity | |
| 653 | a Peculiar - planet and satellite | |
| 653 | a Photometrics | |
| 653 | a Planets and satellites | |
| 653 | a Shallow depths | |
| 653 | a Time-critical | |
| 653 | a Stars | |
| 700 | 1 | a Hoyer, S.u Laboratoire d'Astrophysique de Marseille4 aut |
| 700 | 1 | a Deleuil, M.u Laboratoire d'Astrophysique de Marseille4 aut |
| 700 | 1 | a Simon, A.E.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Davies, M.B.u 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, LTH4 aut0 (Swepub:lu)astr-mda |
| 700 | 1 | a Benz, W.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Florén, H.-G.u Stockholms universitet,Stockholm University4 aut |
| 700 | 1 | a Guterman, P.u Laboratoire d'Astrophysique de Marseille4 aut |
| 700 | 1 | a Borsato, L.u Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Brandeker, A.u Stockholms universitet,Stockholm University4 aut |
| 700 | 1 | a Gandolfi, D.u Universita degli Studi di Torino,University of Turin4 aut |
| 700 | 1 | a Wilson, T.G.u University of St Andrews4 aut |
| 700 | 1 | a Zingales, Tizianou Istituto nazionale di astrofisica (INAF),Università Degli Studi di Padova,University of Padua4 aut |
| 700 | 1 | a Alibert, Y.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Anglada, G.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 Bárczy, T.4 aut |
| 700 | 1 | a Barrado Navascues, D.u European Space Astronomy Centre (ESAC)4 aut |
| 700 | 1 | a Barros, S.C.C.u Universidade do Porto,University of Porto4 aut |
| 700 | 1 | a Baumjohann, W.4 aut |
| 700 | 1 | a Beck, T.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Billot, N.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Bonfils, X.4 aut |
| 700 | 1 | a Broeg, C.u Universität Bern,University of Bern4 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 Csizmadia, Szilardu Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Cubillos, P. E.u Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Davies, M.B.u Lunds universitet,Lund University4 aut |
| 700 | 1 | a Deline, A.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Delrez, L.u Universite de Liège,University of Liège4 aut |
| 700 | 1 | a Demangeon, O.u Universidade do Porto,University of Porto4 aut |
| 700 | 1 | a Demory, B.O.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Ehrenreich, D.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Erikson, Andersu Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Fortier, A.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Fossati, L.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 Gillon, Michaëlu Universite de Liège,University of Liège4 aut |
| 700 | 1 | a Gudel, M.u Universität Wien,University of Vienna4 aut |
| 700 | 1 | a Günther, Maximilian N.u European Space Research and Technology Centre (ESA ESTEC)4 aut |
| 700 | 1 | a Heitzmann, A.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Helling, Ch.u Technische Universität Graz4 aut |
| 700 | 1 | a Isaak, K.u European Space Research and Technology Centre (ESA ESTEC)4 aut |
| 700 | 1 | a Kiss, L.u Eötvös Loránd University (ELTE),Magyar Tudomanyos Akademia,Hungarian Academy of Sciences4 aut |
| 700 | 1 | a Kopp, E.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Lam, K. W.F.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Laskar, J.u Observatoire de Paris,Paris Observatory4 aut |
| 700 | 1 | a des Etangs, A. L.u Institut d 'Astrophysique de Paris4 aut |
| 700 | 1 | a Lendl, M.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Magrin, D.u Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Maxted, P.u Keele University4 aut |
| 700 | 1 | a Mordasini, C.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Nascimbeni, Valeriou Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Olofsson, G.u Stockholms universitet,Stockholm University4 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 Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut |
| 700 | 1 | a Peter, G.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Piotto, Giampaolo P.u Istituto nazionale di astrofisica (INAF),Università Degli Studi di Padova,University of Padua4 aut |
| 700 | 1 | a Pollacco, Don L.u The University of Warwick4 aut |
| 700 | 1 | a Queloz, D.u Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH),University Of Cambridge4 aut |
| 700 | 1 | a Ragazzoni, R.u 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 Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR),Freie Universität Berlin,Technische Universität Berlin4 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 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 Smith, A. 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 Stalport, M.u Universite de Liège,University of Liège4 aut |
| 700 | 1 | a Szabó, G.M.u Eötvös Loránd University (ELTE)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 Ulmer, B.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Van Grootel, V.u Universite de Liège,University of Liège4 aut |
| 700 | 1 | a Venturini, J.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Verrecchia, F.u Osservatorio Astronomico di Roma,Agenzia Spaziale Italiana,Italian Space Agency4 aut |
| 700 | 1 | a Walton, N. A.u University Of Cambridge,University of Cambridge4 aut |
| 710 | 2 | a Instituto de Astrofísica de Canariasb Universidad de la Laguna4 org |
| 773 | 0 | t Astronomy and Astrophysicsg 680q 680x 0004-6361x 1432-0746 |
| 856 | 4 | u https://research.chalmers.se/publication/539191/file/539191_Fulltext.pdfx primaryx freey FULLTEXT |
| 856 | 4 | u http://dx.doi.org/10.1051/0004-6361/202347779y FULLTEXT |
| 856 | 4 8 | u https://doi.org/10.1051/0004-6361/202347779 |
| 856 | 4 8 | u https://research.chalmers.se/publication/539191 |
| 856 | 4 8 | u https://lup.lub.lu.se/record/240a9fed-f686-4158-a1c5-ebfea1a87e61 |
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