Sökning: WFRF:(Smith Alexis M.S.) > It Takes Two Planet...
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000 | 09358naa a2201177 4500 | |
001 | oai:research.chalmers.se:22bd2f5d-2f7f-49b5-88d3-a27cedfa408b | |
003 | SwePub | |
008 | 200416s2020 | |||||||||||000 ||eng| | |
024 | 7 | a https://research.chalmers.se/publication/5165042 URI |
024 | 7 | a https://doi.org/10.3847/1538-3881/ab66c92 DOI |
024 | 7 | a https://research.chalmers.se/publication/5183412 URI |
024 | 7 | a https://research.chalmers.se/publication/5158462 URI |
024 | 7 | a https://research.chalmers.se/publication/5243172 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 Lam, Kristine W. F.u Technische Universität Berlin4 aut |
245 | 1 0 | a It Takes Two Planets in Resonance to Tango around K2-146 |
264 | c 2020-02-21 | |
264 | 1 | b American Astronomical Society,c 2020 |
338 | a electronic2 rdacarrier | |
520 | a K2-146 is a cool, 0.358M dwarf that was found to host a mini-Neptune with a 2.67 day period. The planet exhibited strong transit timing variations (TTVs) of greater than 30 minutes, indicative of the presence of an additional object in the system. Here we report the discovery of the previously undetected outer planet in the system, K2-146 c, using additional photometric data. K2-146 c was found to have a grazing transit geometry and a 3.97 day period. The outer planet was only significantly detected in the latter K2 campaigns presumably because of precession of its orbital plane. The TTVs of K2-146 b and c were measured using observations spanning a baseline of almost 1200 days. We found strong anti -correlation in the TTVs, suggesting the two planets are gravitationally interacting. Our TTV and transit model analyses revealed that K2-146 b has a radius of 2.25 0.10 Re and a mass of 5.6 0.7 Me, whereas K2-146 c has a radius of 2.591 Re and a mass of 7.1 0.9 Me. The inner and outer planets likely have moderate eccentricities of e = 0.14 0.07 and 0.16 0.07, respectively. Long-term numerical integrations of the two -planet orbital solution show that it can be dynamically stable for at least 2 Myr. We show that the resonance angles of the planet pair are librating, which may be an indication that K2-146 b and c are in a 3:2 mean motion resonance. The orbital architecture of the system points to a possible convergent migration origin. | |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Maskinteknikx Rymd- och flygteknik0 (SwePub)203022 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Mechanical Engineeringx Aerospace Engineering0 (SwePub)203022 hsv//eng |
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 |
653 | a MASS | |
653 | a DYNAMICS | |
653 | a PHOTOMETRY | |
653 | a SPECTRAL-ANALYSIS | |
653 | a ALGORITHM | |
653 | a CURVES | |
653 | a TERRESTRIAL PLANETS | |
653 | a MIGRATION | |
653 | a SUPER-EARTHS | |
700 | 1 | a Korth, Judithu Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Masuda, Kentou Princeton University4 aut |
700 | 1 | a Csizmadia, Szilardu Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
700 | 1 | a Eigmueller, Philippu Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
700 | 1 | a Kari Stefansson, Gumunduru Pennsylvania State University4 aut |
700 | 1 | a Endl, Michaelu The University of Texas at Austin, USA,The University of Texas at Austin, USA4 aut |
700 | 1 | a Albrecht, Simonu Århus Universitet,Aarhus University4 aut |
700 | 1 | a Robertson, Paulu Pennsylvania State University4 aut |
700 | 1 | a Luque, Rafaelu Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut |
700 | 1 | a Livingston, John H.u University of Tokyo, Japan4 aut |
700 | 1 | a Hirano, Teruyukiu Tokyo Institute of Technology4 aut |
700 | 1 | a Alonso Sobrino, Roiu Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut |
700 | 1 | a Barragan, Oscaru University Of Oxford4 aut |
700 | 1 | a Cabrera, Juanu Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
700 | 1 | a Carleo, Ilariau Wesleyan University4 aut |
700 | 1 | a Chaushev, Alexanderu Technische Universität Berlin4 aut |
700 | 1 | a Cochran, William D.u The University of Texas at Austin, USA,The University of Texas at Austin, USA4 aut |
700 | 1 | a Dai, Feiu Massachusetts Institute of Technology (MIT),Princeton University4 aut |
700 | 1 | a de Leon, Jeromeu University of Tokyo, Japan4 aut |
700 | 1 | a Deeg, Hans J.u Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut |
700 | 1 | a Erikson, Andersu Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
700 | 1 | a Esposito, Massimilianou Thüringer Landessternwarte Tautenburg,Technische Universität Berlin4 aut |
700 | 1 | a Fridlund, Malcolm,d 1952u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)malfri |
700 | 1 | a Fukui, Akihikou National Institutes of Natural Sciences (NINS)4 aut |
700 | 1 | a Gandolfi, Davideu Universita degli Studi di Torino,University of Turin4 aut |
700 | 1 | a Georgieva, Iskrau Chalmers tekniska högskola,Chalmers University of Technology4 aut |
700 | 1 | a Gonzalez Cuesta, Lucau Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut |
700 | 1 | a Grziwa, Saschau Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Guenther, Eike W.u Thüringer Landessternwarte Tautenburg4 aut |
700 | 1 | a Hatzes, Artie P.u Thüringer Landessternwarte Tautenburg4 aut |
700 | 1 | a Hidalgo, Diegou Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut |
700 | 1 | a Hjorth, Mariau Århus Universitet,Aarhus University4 aut |
700 | 1 | a Kabath, Petru Czech Academy of Sciences4 aut |
700 | 1 | a Knudstrup, Emilu Århus Universitet,Aarhus University4 aut |
700 | 1 | a Lund, Mikkel N.u Århus Universitet,Aarhus University4 aut |
700 | 1 | a Mahadevan, Suvrathu Pennsylvania State University4 aut |
700 | 1 | a Mathur, Savitau Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut |
700 | 1 | a Montanes Rodriguez, Pilaru Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut |
700 | 1 | a Murgas, Felipeu Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut |
700 | 1 | a Narita, Noriou National Institutes of Natural Sciences (NINS),Instituto de Astrofísica de Canarias,Japan Science and Technology Agency (JST)4 aut |
700 | 1 | a Nespral, Davidu Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut |
700 | 1 | a Niraula, Prajwalu Massachusetts Institute of Technology (MIT)4 aut |
700 | 1 | a Palle, Enricu Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut |
700 | 1 | a Paetzold, Martinu 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, Jorgeu Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut |
700 | 1 | a Rauer, Heikeu Technische Universität Berlin,Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR),Freie Universität Berlin4 aut |
700 | 1 | a Redfield, Sethu Wesleyan University4 aut |
700 | 1 | a Ribas, Ignasiu Institut d'Estudis Espacials de Catalunya (IEEC),Institute of Space Studies of Catalonia (IEEC),Agencia Estatal Consejo Superior de Investigaciones Científicas,Spanish National Research Council4 aut |
700 | 1 | a Skarka, Mareku Czech Academy of Sciences,Masarykova Univerzita,Masaryk University4 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 Subjak, Janu Czech Academy of Sciences,Univerzita Karlova,Charles University4 aut |
700 | 1 | a Van Eylen, Vincentu University College London (UCL),Princeton University4 aut |
710 | 2 | a Technische Universität Berlinb Universität zu Köln4 org |
773 | 0 | t Astronomical Journald : American Astronomical Societyg 159:3q 159:3x 1538-3881x 0004-6256 |
856 | 4 | u https://research.chalmers.se/publication/524317/file/524317_Fulltext.pdfx primaryx freey FULLTEXT |
856 | 4 | u https://iris.unito.it/bitstream/2318/1791022/1/Lam_2020_AJ_159_120.pdf |
856 | 4 8 | u https://research.chalmers.se/publication/516504 |
856 | 4 8 | u https://doi.org/10.3847/1538-3881/ab66c9 |
856 | 4 8 | u https://research.chalmers.se/publication/518341 |
856 | 4 8 | u https://research.chalmers.se/publication/515846 |
856 | 4 8 | u https://research.chalmers.se/publication/524317 |
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