WFRF:(Persson B. N. J.)
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 09488naa a2201093 4500 | |
| 001 | oai:research.chalmers.se:a57bff21-3af6-4b8a-8a56-009344898176 | |
| 003 | SwePub | |
| 008 | 200507s2020 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://doi.org/10.1051/0004-6361/2019370802 DOI |
| 024 | 7 | a https://research.chalmers.se/publication/5170882 URI |
| 024 | 7 | a https://research.chalmers.se/publication/5168632 URI |
| 040 | a (SwePub)cth | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a art2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a Hidalgo, D.u Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut |
| 245 | 1 0 | a Three planets transiting the evolved star EPIC 249893012: a hot 8.8-Mearth super-Earth and two warm 14.7 and 10.2-Mearth sub-Neptunes |
| 264 | c 2020-04-24 | |
| 264 | 1 | b EDP Sciences,c 2020 |
| 338 | a electronic2 rdacarrier | |
| 520 | a We report the discovery of a new planetary system with three transiting planets, one super-Earth and two sub-Neptunes, that orbit EPIC 249893012, a G8 IV-V evolved star (M⋆ = 1.05 ± 0.05 M☉, R⋆ = 1.71 ± 0.04 R☉, Teff = 5430 ± 85 K). The star is just leaving the main sequence. We combined K2 photometry with IRCS adaptive-optics imaging and HARPS, HARPS-N, and CARMENES high-precision radial velocity measurements to confirm the planetary system, determine the stellar parameters, and measure radii, masses, and densities of the three planets. With an orbital period of 3.5949-0.0007+0.0007days, a mass of 8.75-1.08+1.09 M⊕, and a radius of 1.95-0.08+0.09 R⊕, the inner planet b is compatible with nickel-iron core and a silicate mantle (ρb = 6.39-1.04+1.19 g cm-3). Planets c and d with orbital periods of 15.624-0.001+0.001 and 35.747-0.005+0.005 days, respectively, have masses and radii of 14.67-1.89+1,84 M⊕ and 3.67-0.14+0.17 R⊕ and 10.18-2.42+2.46 M⊕ and 3.94-0.12+0.13 R⊕, respectively, yielding a mean density of 1.62-0.29+0.30 and 0.91-0.23+0.25 g cm-3, respectively. The radius of planet b lies in the transition region between rocky and gaseous planets, but its density is consistent with a rocky composition. Its semimajor axis and the corresponding photoevaporation levels to which the planet has been exposed might explain its measured density today. In contrast, the densities and semimajor axes of planets c and d suggest a very thick atmosphere. The singularity of this system, which orbits a slightly evolved star that is just leaving the main sequence, makes it a good candidate for a deeper study from a dynamical point of view. | |
| 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 |
| 653 | a planets and satellites: fundamental parameters | |
| 653 | a planetary systems | |
| 653 | a techniques: radial velocities | |
| 653 | a planets and satellites: detection | |
| 653 | a techniques: photometric | |
| 700 | 1 | a Palle, E.u Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut |
| 700 | 1 | a Gandolfi, D.u Universita degli Studi di Torino,University of Turin4 aut |
| 700 | 1 | a Fridlund, Malcolm,d 1952u Universiteit Leiden (UL),Leiden University (UL),Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)malfri |
| 700 | 1 | a Nowak, Grzegorzu Universidad de la Laguna,University of La Laguna4 aut |
| 700 | 1 | a Luque, R.u Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut |
| 700 | 1 | a Hirano, T.u Tokyo Institute of Technology4 aut |
| 700 | 1 | a Justesen, A. B.u National Astronomical Observatory of Japan4 aut |
| 700 | 1 | a Cochran, W. D.u The University of Texas at Austin, USA4 aut |
| 700 | 1 | a Barragan, O.u University Of Oxford,Universita degli Studi di Torino,University of Turin4 aut |
| 700 | 1 | a Spina, Lu Monash University4 aut |
| 700 | 1 | a Rodler, F.u European Southern Observatory Santiago4 aut |
| 700 | 1 | a Albrecht, S.u Århus Universitet,Aarhus University4 aut |
| 700 | 1 | a Anderson, D.u The University of Warwick4 aut |
| 700 | 1 | a Amado, P. J.u Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)4 aut |
| 700 | 1 | a Bryant, E.u Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA),The University of Warwick4 aut |
| 700 | 1 | a Caballero, J. A.4 aut |
| 700 | 1 | a Cabrera, Juanu Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Csizmadia, Szilardu Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Dai, F.u Princeton University,Massachusetts Institute of Technology (MIT)4 aut |
| 700 | 1 | a de Leon, J.u National Institutes of Natural Sciences (NINS)4 aut |
| 700 | 1 | a Deeg, Hansu Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut |
| 700 | 1 | a Eigmuller, Ph.u Technische Universität Berlin,Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Endl, M.u The University of Texas at Austin, USA4 aut |
| 700 | 1 | a Erikson, A.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Esposito, M.u Thüringer Landessternwarte Tautenburg4 aut |
| 700 | 1 | a Figueira, P.u Universidade do Porto,University of Porto,European Southern Observatory Santiago4 aut |
| 700 | 1 | a Georgieva, Iskra,d 1987u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)iskrag |
| 700 | 1 | a Grziwa, S.u Universität zu Köln,University of Cologne4 aut |
| 700 | 1 | a Guenther, E.u Thüringer Landessternwarte Tautenburg4 aut |
| 700 | 1 | a Hatzes, Artie P.u Thüringer Landessternwarte Tautenburg4 aut |
| 700 | 1 | a Hjorth, M.u Århus Universitet,Aarhus University4 aut |
| 700 | 1 | a Hoeijmakers, H. J.u Université de Genève,University of Geneva,Universität Bern,University of Bern4 aut |
| 700 | 1 | a Kabath, P.u Czech Academy of Sciences4 aut |
| 700 | 1 | a Korth, J.u Universität zu Köln,University of Cologne4 aut |
| 700 | 1 | a Kuzuhara, M.u National Institutes of Natural Sciences (NINS)4 aut |
| 700 | 1 | a Lafarga, M.u Monash University,Institut d'Estudis Espacials de Catalunya (IEEC),Institute of Space Studies of Catalonia (IEEC)4 aut |
| 700 | 1 | a Lampon, M.u Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)4 aut |
| 700 | 1 | a Leão, I.C.u Universidade Federal do Rio Grande do Sul (UFRGS)4 aut |
| 700 | 1 | a Livingston, J.u University of Tokyo, Japan4 aut |
| 700 | 1 | a Mathur, S.u Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut |
| 700 | 1 | a Montanes Rodriguez, Pilaru Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut |
| 700 | 1 | a Morales, J. C.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 Murgas, F.u Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut |
| 700 | 1 | a Nagel, E.4 aut |
| 700 | 1 | a Narita, N.u National Institutes of Natural Sciences (NINS),Japan Science and Technology Agency (JST),Instituto de Astrofísica de Canarias4 aut |
| 700 | 1 | a Nielsen, L. D.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Patzold, M.u Universität zu Köln,University of Cologne4 aut |
| 700 | 1 | a Persson, Carina,d 1964u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)carina64 |
| 700 | 1 | a Prieto-Arranz, J.u Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut |
| 700 | 1 | a Quirrenbach, A.u Ruprecht-Karls-Universität Heidelberg,Heidelberg University4 aut |
| 700 | 1 | a Rauer, H.u Freie Universität Berlin,Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR),Technische Universität Berlin4 aut |
| 700 | 1 | a Redfield, S.u Wesleyan University4 aut |
| 700 | 1 | a Reiners, A.u Georg-August-Universität Göttingen,University of Göttingen4 aut |
| 700 | 1 | a Ribas, Iu 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 Smith, A.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Subjak, J.u Univerzita Karlova,Charles University,Czech Academy of Sciences4 aut |
| 700 | 1 | a Van Eylen, V.u University College London (UCL)4 aut |
| 700 | 1 | a Wilson, P. A.u The University of Warwick4 aut |
| 710 | 2 | a Universidad de la Lagunab Instituto de Astrofísica de Canarias4 org |
| 773 | 0 | t Astronomy and Astrophysicsd : EDP Sciencesg 636q 636x 0004-6361x 1432-0746 |
| 856 | 4 | u https://research.chalmers.se/publication/517088/file/517088_Fulltext.pdfx primaryx freey FULLTEXT |
| 856 | 4 | u https://elib.dlr.de/137444/1/luque.pdf |
| 856 | 4 8 | u https://doi.org/10.1051/0004-6361/201937080 |
| 856 | 4 8 | u https://research.chalmers.se/publication/517088 |
| 856 | 4 8 | u https://research.chalmers.se/publication/516863 |
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