Sökning: onr:"swepub:oai:research.chalmers.se:15c3723d-9669-470f-b22a-387ce2414fc7" > K2-106, a system co...
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000 | 07117naa a2200913 4500 | |
001 | oai:research.chalmers.se:15c3723d-9669-470f-b22a-387ce2414fc7 | |
003 | SwePub | |
008 | 171220s2017 | |||||||||||000 ||eng| | |
024 | 7 | a https://research.chalmers.se/publication/2539572 URI |
024 | 7 | a https://doi.org/10.1051/0004-6361/2017308852 DOI |
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 Guenther, E. W.u Thüringer Landessternwarte Tautenburg,Instituto de Astrofísica de Canarias4 aut |
245 | 1 0 | a K2-106, a system containing a metal-rich planet and a planet of lower density |
264 | c 2017-12-11 | |
264 | 1 | b EDP Sciences,c 2017 |
338 | a electronic2 rdacarrier | |
520 | a Planets in the mass range from 2 to 15 M_Earth are very diverse. Some of them have low densities, while others are very dense. By measuring the masses and radii, the mean densities, structure, and composition of the planets are constrained. These parameters also give us important information about their formation and evolution, and about possible processes for atmospheric loss.We determined the masses, radii, and mean densities for the two transiting planets orbiting K2-106. The inner planet has an ultra-short period of 0.57 days. The period of the outer planet is 13.3 days. Although the two planets have similar masses, their densities are very different. For K2-106b we derive Mb=8.36-0.94+0.96 M_Earh, Rb=1.52+/-0.16 R_Earth, and a high density of 13.1-3.6+5.4 g/cm^3. For K2-106c, we find Mc=5.8-3.0+3.3 M_Earth, Rc=2.50-0.26+0.27 R_Earth and a relatively low density of 2.0-1.1+1.6 g/cm^3.Since the system contains two planets of almost the same mass, but different distances from the host star, it is an excellent laboratory to study atmospheric escape. In agreement with the theory of atmospheric-loss processes, it is likely that the outer planet has a hydrogen-dominated atmosphere. The mass and radius of the inner planet is in agreement with theoretical models predicting an iron core containing 80+20-30% of its mass. Such a high metal content is surprising, particularly given that the star has an ordinary (solar) metal abundance. We discuss various possible formation scenarios for this unusual planet. | |
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 techniques: radial velocities | |
653 | a techniques: photometric | |
653 | a planetary systems | |
653 | a stars: abundances | |
653 | a stars: individual: TYC 608-458-1 | |
700 | 1 | a Barragán, O.u Universita degli Studi di Torino,University of Turin4 aut |
700 | 1 | a Dai, F.u Massachusetts Institute of Technology (MIT)4 aut |
700 | 1 | a Gandolfi, D.u Universita degli Studi di Torino,University of Turin4 aut |
700 | 1 | a Hirano, T.u Tokyo Institute of Technology4 aut |
700 | 1 | a Fridlund, Malcolm,d 1952u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)malfri |
700 | 1 | a Fossati, L.4 aut |
700 | 1 | a Chau, A.u Universität Zürich,University of Zürich4 aut |
700 | 1 | a Helled, R.u Universität Zürich,University of Zürich4 aut |
700 | 1 | a Korth, J.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Prieto-Arranz, J.u Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut |
700 | 1 | a Nespral, D.u Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut |
700 | 1 | a Antoniciello, G.u Universita degli Studi di Torino,University of Turin4 aut |
700 | 1 | a Deeg, H.u Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut |
700 | 1 | a Hjorth, M.u Århus Universitet,Aarhus University4 aut |
700 | 1 | a Grziwa, S.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Albrecht, S.u Århus Universitet,Aarhus University4 aut |
700 | 1 | a Hatzes, A.u Thüringer Landessternwarte Tautenburg4 aut |
700 | 1 | a Rauer, H.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR),Technische Universität Berlin4 aut |
700 | 1 | a Csizmadia, Sz.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 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 Cabrera, J.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
700 | 1 | a Narita, N.u University of Tokyo, Japan,National Institutes of Natural Sciences (NINS),National Astronomical Observatory of Japan4 aut |
700 | 1 | a Arriagada, P.4 aut |
700 | 1 | a Burt, J.u Massachusetts Institute of Technology (MIT)4 aut |
700 | 1 | a Butler, R. P.4 aut |
700 | 1 | a Cochran, W. D.u The University of Texas at Austin, USA4 aut |
700 | 1 | a Crane, J. D.u Carnegie Observatories4 aut |
700 | 1 | a Eigmüller, Ph.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
700 | 1 | a Erikson, A.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
700 | 1 | a Johnson, J. A.u Harvard-Smithsonian Center for Astrophysics4 aut |
700 | 1 | a Kiilerich, A.u Århus Universitet,Aarhus University4 aut |
700 | 1 | a Kubyshkina, D.4 aut |
700 | 1 | a Palle, E.u Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut |
700 | 1 | a Persson, Carina,d 1964u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)carina64 |
700 | 1 | a Patzold, M.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Sabotta, S.u Thüringer Landessternwarte Tautenburg4 aut |
700 | 1 | a Sato, B.u Tokyo Institute of Technology4 aut |
700 | 1 | a Shectman, St. A.u Carnegie Observatories4 aut |
700 | 1 | a Teske, J. K.u Carnegie Observatories4 aut |
700 | 1 | a Thompson, I. B.u Carnegie Observatories4 aut |
700 | 1 | a Van Eylen, V.u Universiteit Leiden (UL),Leiden University (UL)4 aut |
700 | 1 | a Nowak, G.u Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut |
700 | 1 | a Vanderburg, A.u Harvard-Smithsonian Center for Astrophysics4 aut |
700 | 1 | a Winn, J. N.u Princeton University4 aut |
700 | 1 | a Wittenmyer, R. A.u University of Southern Queensland4 aut |
710 | 2 | a Thüringer Landessternwarte Tautenburgb Instituto de Astrofísica de Canarias4 org |
773 | 0 | t Astronomy and Astrophysicsd : EDP Sciencesg 608, s. 93-q 608<93-x 0004-6361x 1432-0746 |
856 | 4 | u http://publications.lib.chalmers.se/records/fulltext/253957/local_253957.pdfx primaryx freey FULLTEXT |
856 | 4 | u https://www.aanda.org/articles/aa/pdf/2017/12/aa30885-17.pdf |
856 | 4 8 | u https://research.chalmers.se/publication/253957 |
856 | 4 8 | u https://doi.org/10.1051/0004-6361/201730885 |
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