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dc.contributor.author
Adibekyan, Vardan  
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Dorn, Caroline  
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Sousa, Sérgio G.  
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Santos, Nuno C.  
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Bitsch, Bertram  
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Israelian, Garik  
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Mordasini, Christoph  
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Barros, Susana C.C.  
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Mena, Elisa Delgado  
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Demangeon, Olivier D.S.  
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Faria, João P.  
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Figueira, Pedro  
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Hakobyan, Artur A.  
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Oshagh, Mahmoudreza  
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Soares, Bárbara M.T.B.  
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Kunitomo, Masanobu  
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Takeda, Yoichi  
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Jofré, Emiliano  
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Petrucci, Romina Paola  
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Martioli, Eder  
dc.date.available
2023-08-25T12:52:18Z  
dc.date.issued
2021-10  
dc.identifier.citation
Adibekyan, Vardan; Dorn, Caroline; Sousa, Sérgio G.; Santos, Nuno C.; Bitsch, Bertram; et al.; A compositional link between rocky exoplanets and their host stars; American Association for the Advancement of Science; Science; 374; 6565; 10-2021; 330-332  
dc.identifier.issn
0036-8075  
dc.identifier.uri
http://hdl.handle.net/11336/209354  
dc.description.abstract
Stars and planets both form by accreting material from a surrounding disk. Because they grow from the same material, theory predicts that there should be a relationship between their compositions. In this study, we search for a compositional link between rocky exoplanets and their host stars. We estimate the iron-mass fraction of rocky exoplanets from their masses and radii and compare it with the compositions of their host stars, which we assume reflect the compositions of the protoplanetary disks. We find a correlation (but not a 1:1 relationship) between these two quantities, with a slope of >4, which we interpret as being attributable to planet formation processes. Super-Earths and super-Mercuries appear to be distinct populations with differing compositions, implying differences in their formation processes.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
American Association for the Advancement of Science  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/  
dc.subject
EXOPLANETS  
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CHEMICAL COMPOSITION  
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PLANET FORMATION  
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Otras Ciencias Naturales y Exactas  
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Otras Ciencias Naturales y Exactas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
A compositional link between rocky exoplanets and their host stars  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-08-11T14:53:49Z  
dc.journal.volume
374  
dc.journal.number
6565  
dc.journal.pagination
330-332  
dc.journal.pais
Estados Unidos  
dc.journal.ciudad
Washington  
dc.description.fil
Fil: Adibekyan, Vardan. Universidad de Porto; Portugal  
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Fil: Dorn, Caroline. Universitat Zurich; Suiza  
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Fil: Sousa, Sérgio G.. Universidad de Porto; Portugal  
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Fil: Santos, Nuno C.. Universidad de Porto; Portugal  
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Fil: Bitsch, Bertram. Max-Planck-Institut für Astronomie; Alemania  
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Fil: Israelian, Garik. Universidad de La Laguna; España. Instituto de Astrofísica de Canarias; España  
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Fil: Mordasini, Christoph. University of Bern; Suiza  
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Fil: Barros, Susana C.C.. Universidad de Porto; Portugal  
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Fil: Mena, Elisa Delgado. Universidad de Porto; Portugal  
dc.description.fil
Fil: Demangeon, Olivier D.S.. Universidad de Porto; Portugal  
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Fil: Faria, João P.. Universidad de Porto; Portugal  
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Fil: Figueira, Pedro. Universidad de Porto; Portugal. European Southern Observatory Chile; Chile  
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Fil: Hakobyan, Artur A.. Alikhanian National Science Laboratory; Armenia  
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Fil: Oshagh, Mahmoudreza. Universidad de La Laguna; España. Instituto de Astrofísica de Canarias; España  
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Fil: Soares, Bárbara M.T.B.. Universidad de Porto; Portugal  
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Fil: Kunitomo, Masanobu. Kurume University; Japón  
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Fil: Takeda, Yoichi. The Graduate University for Advanced Studies; Japón. National Astronomical Observatory; Japón  
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Fil: Jofré, Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Universidad Nacional Autónoma de México. Instituto de Astronomía; México  
dc.description.fil
Fil: Petrucci, Romina Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina  
dc.description.fil
Fil: Martioli, Eder. Yerevan Physics Institute; Armenia  
dc.journal.title
Science  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/2102.12444  
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info:eu-repo/semantics/altIdentifier/url/https://www.science.org/doi/10.1126/science.abg8794  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1126/science.abg8794  

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