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Campo DC | Valor | Idioma |
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dc.rights.license | Copyright © 2020, The Author(s), under exclusive licence to Springer Nature Limited | - |
dc.contributor.author | Ehrenreich, D. | - |
dc.contributor.author | Lovis, C. | - |
dc.contributor.author | Allart, R. | - |
dc.contributor.author | Zapatero Osorio, M. R. | - |
dc.contributor.author | Pepe, F. | - |
dc.contributor.author | Cristiani, S. | - |
dc.contributor.author | Rebolo, R. | - |
dc.contributor.author | Santos, N. C. | - |
dc.contributor.author | Borsa, F. | - |
dc.contributor.author | Demangeon, O. D. S. | - |
dc.contributor.author | Dumusque, X. | - |
dc.contributor.author | González Hernández, J. I. | - |
dc.contributor.author | Casasayas Barris, N. | - |
dc.contributor.author | Séngrasan, D. | - |
dc.contributor.author | Sousa, S. | - |
dc.contributor.author | Abreu, M. | - |
dc.contributor.author | Adibekyan, V. | - |
dc.contributor.author | Affolter, M. | - |
dc.contributor.author | Allende Prieto, C. | - |
dc.contributor.author | Alibert, Y. | - |
dc.contributor.author | Aliverti, M. | - |
dc.contributor.author | Alves, D. | - |
dc.contributor.author | Amate, M. | - |
dc.contributor.author | Ávila, G. | - |
dc.contributor.author | Baldini, V. | - |
dc.contributor.author | Bandy, T. | - |
dc.contributor.author | Benz, W. | - |
dc.contributor.author | Bianco, A. | - |
dc.contributor.author | Bolmont, É. | - |
dc.contributor.author | Bouchy, F. | - |
dc.contributor.author | Bourrier, V. | - |
dc.contributor.author | Broeg, C. | - |
dc.contributor.author | Cabral, A. | - |
dc.contributor.author | Calderone, G. | - |
dc.contributor.author | Pallé, E. | - |
dc.contributor.author | Cegla, H. M. | - |
dc.contributor.author | Cirami, R. | - |
dc.contributor.author | Coelho, João M. P. | - |
dc.contributor.author | Conconi, P. | - |
dc.contributor.author | Coretti, I. | - |
dc.contributor.author | Cumani, C. | - |
dc.contributor.author | Cupani, G. | - |
dc.contributor.author | Dekker, H. | - |
dc.contributor.author | Delabre, B. | - |
dc.contributor.author | Deiries, S. | - |
dc.contributor.author | D´Odorico, V. | - |
dc.contributor.author | Di Marcoantonio, P. | - |
dc.contributor.author | Figueira, P. | - |
dc.contributor.author | Fragoso, A. | - |
dc.contributor.author | Genolet, L. | - |
dc.contributor.author | Genoni, M. | - |
dc.contributor.author | Génova Santos, R. | - |
dc.contributor.author | Harada, N. | - |
dc.contributor.author | Hughes, I. | - |
dc.contributor.author | Iwert, O. | - |
dc.contributor.author | Kerber, F. | - |
dc.contributor.author | Knudstrup, J. | - |
dc.contributor.author | Landoni, M. | - |
dc.contributor.author | Lavie, B. | - |
dc.contributor.author | Lizon, J. L. | - |
dc.contributor.author | Lendl, M. | - |
dc.contributor.author | Lo Curto, G. | - |
dc.contributor.author | Maire, C. | - |
dc.contributor.author | Manescau, A. | - |
dc.contributor.author | Martins, C. J. A. P. | - |
dc.contributor.author | Mégevand, D. | - |
dc.contributor.author | Mehner, A. | - |
dc.contributor.author | Micela, G. | - |
dc.contributor.author | Modigliani, A. | - |
dc.contributor.author | Molaro, P. | - |
dc.contributor.author | Monteiro, M. | - |
dc.contributor.author | Monteiro, M. A. | - |
dc.contributor.author | Moschetti, M. | - |
dc.contributor.author | Muller, N. | - |
dc.contributor.author | Nunes, N. | - |
dc.contributor.author | Oggioni, L. | - |
dc.contributor.author | Oliveira, A. | - |
dc.contributor.author | Pariani, G. | - |
dc.contributor.author | Pasquini, L. | - |
dc.contributor.author | Poretti, E. | - |
dc.contributor.author | Rasilla, J. L. | - |
dc.contributor.author | Redaelli, E. | - |
dc.contributor.author | Riva, M. | - |
dc.contributor.author | Santana Tschudi, S. | - |
dc.contributor.author | Santin, P. | - |
dc.contributor.author | Santos, P. | - |
dc.contributor.author | Segovia Milla, A. | - |
dc.contributor.author | Seidel, J. V. | - |
dc.contributor.author | Sosnowska, D. | - |
dc.contributor.author | Sozzetti, A. | - |
dc.contributor.author | Spanò, P. | - |
dc.contributor.author | Suárez Mascareño, A. | - |
dc.contributor.author | Tabernero, H. | - |
dc.contributor.author | Tenegi, F. | - |
dc.contributor.author | Udry, S. | - |
dc.contributor.author | Zanutta, A. | - |
dc.contributor.author | Zerbi, Filippo M. | - |
dc.contributor.other | Unidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737 | - |
dc.date.accessioned | 2021-04-19T08:47:12Z | - |
dc.date.available | 2021-04-19T08:47:12Z | - |
dc.date.issued | 2020-03-11 | - |
dc.identifier.citation | Nature 580: 597-601(2020) | es |
dc.identifier.issn | 0028-0836 | - |
dc.identifier.other | https://www.nature.com/articles/s41586-020-2107-1 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12666/410 | - |
dc.description | D.E., C.L. and R.A. led the data analysis and interpretation. D.E. wrote the paper with contributions from R.A. C.L. led the development of the data reduction pipeline. M.R.Z.O. coordinated the observations and scientific work and performed the first-epoch observation. F.P., S.C., R.R. and N.C.S. led the ESPRESSO consortium and building of the instrument. J.I.G.H. performed the second-epoch observation. F. Borsa, O.D., E. Pallé, N.C.S., E.B., V. Bourrier, H.M.C., N.C.-B., J.V.S. and H.T. brought decisive contributions to the interpretation. N.C.-B. performed an independent data analysis. S.S. performed the stellar parameter analysis. X.D. created the CCF mask and retrieved the list of its atomic lines. N.H. made the radial velocity retrieval. D. Ségransan provided support with DACE. B.L. provided the nested sampling algorithm for the analysis. M. Lendl derived the transit ephemeris. V.A., C.A.P., Y.A., F. Bouchy, V.D., P.F., R.G.S., C.J.A.P.M., A. Mehner, G.M., P.M., N.N., G.L.C., E. Poretti, A.S., A. Suárez Mascareño and S.U. participated in the scientific preparation and target selection for these observations. The other co-authors provided key contributions to the instrumental, software and operational development of ESPRESSO. All co-authors read and commented the manuscript. | es |
dc.description.abstract | Ultrahot giant exoplanets receive thousands of times Earth’s insolation1,2. Their high-temperature atmospheres (greater than 2,000 kelvin) are ideal laboratories for studying extreme planetary climates and chemistry3,4,5. Daysides are predicted to be cloud-free, dominated by atomic species6 and much hotter than nightsides5,7,8. Atoms are expected to recombine into molecules over the nightside9, resulting in different day and night chemistries. Although metallic elements and a large temperature contrast have been observed10,11,12,13,14, no chemical gradient has been measured across the surface of such an exoplanet. Different atmospheric chemistry between the day-to-night (‘evening’) and night-to-day (‘morning’) terminators could, however, be revealed as an asymmetric absorption signature during transit4,7,15. Here we report the detection of an asymmetric atmospheric signature in the ultrahot exoplanet WASP-76b. We spectrally and temporally resolve this signature using a combination of high-dispersion spectroscopy with a large photon-collecting area. The absorption signal, attributed to neutral iron, is blueshifted by −11 ± 0.7 kilometres per second on the trailing limb, which can be explained by a combination of planetary rotation and wind blowing from the hot dayside16. In contrast, no signal arises from the nightside close to the morning terminator, showing that atomic iron is not absorbing starlight there. We conclude that iron must therefore condense during its journey across the nightside. | es |
dc.description.sponsorship | We thank G. Fu for sharing information regarding the binary companion of WASP-76A and D. Kitzmann for discussion about how iron can condense. This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (project FOUR ACES; grant agreement no. 724427). It has also been carried out in the frame of the National Centre for Competence in Research PlanetS supported by the Swiss National Science Foundation (SNSF). This work was supported by FCT/MCTES through national funds and by FEDER (Fundo Europeu de Desenvolvimento Regional) through COMPETE2020 (Programa Operacional Competitividade e Internacionalizacao) by these grants: UID/FIS/04434/2019; PTDC/FIS-AST/32113/2017 and POCI-01-0145-FEDER-032113; PTDC/FIS-AST/28953/2017 and POCI-01-0145-FEDER-028953. V.A. and S.S. acknowledge support from FCT through Investigador FCT contracts IF/00650/2015 and IF/00028/2014, and POPH/FSE (EC) by FEDER funding through the programme "Programa Operacional de Factores de Competitividade-COMPETE". This work of C.J.A.P.M. was financed by FEDER funds through the COMPETE 2020-Operational Programme for Competitiveness and Internationalisation (POCI), and by Portuguese funds through FCT (Fundacao para a Ciencia e a Tecnologia) in the framework of the projects POCI-01-0145-FEDER-028987 and UID/FIS/04434/2019. O.D. is supported by a work contract (DL 57/2016/CP1364/CT0004). M.R.Z.O. acknowledges financial support from AYA2016-79425-C3-2-P from the Spanish Ministry for Science, Innovation and Universities (MICIU). J.I.G.H. acknowledges financial support from the MICIU under the 2013 Ramon y Cajal programme MICIU RYC-2013-14875. J.I.G.H., R.R., C.A.P. and A. Suarez Mascareno also acknowledge financial support from the MICIU for project AYA2017-86389-P. This publication makes use of The Data and Analysis Center for Exoplanets (DACE), which is a facility based at the University of Geneva (CH) dedicated to extrasolar planet data visualization, exchange and analysis. DACE is a platform of the Swiss National Centre of Competence in Research (NCCR) PlanetS, federating the Swiss expertise in Exoplanet research. The DACE platform is available at https://dace.unige.ch. This paper is based on observations made at the ESO Very Large Telescope (Paranal, Chile) under programme 1102.C-744 and at the ESO 3.6-m telescope (La Silla, Chile) under programmes 090.C-0540 and 100.C-0750; With funding from the Spanish government through the "María de Maeztu Unit of Excellence" accreditation (MDM-2017-0737). | es |
dc.language.iso | eng | es |
dc.publisher | Nature Research Journals | es |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2016-79425-C3-2-P/ES/ENANAS MARRONES Y PLANETAS AISLADOS Y COMO COMPAÑEROS DE ESTRELLAS/ | - |
dc.relation | info:eu-repo/grantAgreement/MINECO//RYC-2013-14875 | - |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-86389-P/ES/ESPECTROSCOPIA DE ALTA RESOLUCION ORIENTADA AL ESTUDIO DE EXOTIERRAS Y LA FORMACION DE LA VIA LACTEA. EXPLOTACION CIENTIFICA DE ESPRESSO Y HORS/ | - |
dc.title | Nightside condensation of iron in an ultrahot giant exoplanet | es |
dc.type | info:eu-repo/semantics/article | es |
dc.contributor.orcid | Suárez Mascareño, A. [0000-0002-3814-5323] | - |
dc.contributor.orcid | Abreu, M. [0000-0002-0716-9568] | - |
dc.contributor.orcid | João M. P. Coelho. [0000-0002-4339-0550] | - |
dc.contributor.orcid | Monteiro, M. J. [0000-0003-0513-8116] | - |
dc.contributor.orcid | Tabernero, H. [0000-0002-8087-4298] | - |
dc.contributor.orcid | Nunes, N. J. [0000-0002-3837-6914] | - |
dc.contributor.orcid | Cabral, A. [0000-0002-9433-871X] | - |
dc.contributor.orcid | Molaro, P. [0000-0002-0571-4163] | - |
dc.contributor.orcid | Redaelli, E. M. A. [0000-0001-8185-2122] | - |
dc.contributor.orcid | Zapatero Osorio, M. R. [0000-0001-5664-2852] | - |
dc.contributor.orcid | Castro Alves, D. [0000-0001-7026-2514] | - |
dc.contributor.orcid | Seidel, J. V. [0000-0002-7990-9596] | - |
dc.contributor.orcid | Martins, C. J. A. P. [0000-0002-4886-9261] | - |
dc.contributor.orcid | Adibekyan, V. [0000-0002-0601-6199] | - |
dc.contributor.orcid | Zerbi, F. M. [0000-0002-9996-973X] | - |
dc.contributor.orcid | Monteiro, M. [0000-0001-5644-0898] | - |
dc.contributor.orcid | Mehner, A. [0000-0002-9564-3302] | - |
dc.contributor.orcid | Santos, N. [0000-0003-4422-2919] | - |
dc.contributor.orcid | Cegla, H. [0000-0001-8934-7315] | - |
dc.contributor.orcid | Sozzetti, A. [0000-0002-7504-365X] | - |
dc.contributor.orcid | Allart, R. [0000-0002-1199-9759] | - |
dc.contributor.orcid | Landoni, M. [0000-0001-5570-5081] | - |
dc.contributor.orcid | Coretti, I. [0000-0001-9374-3249] | - |
dc.identifier.doi | 10.1038/s41586-020-2107-1 | - |
dc.identifier.e-issn | 1476-4687 | - |
dc.contributor.funder | European Research Council (ERC) | - |
dc.contributor.funder | Swiss National Science Foundation (SNSF) | - |
dc.contributor.funder | Fundacao para a Ciencia e a Tecnologia (FCT) | - |
dc.contributor.funder | Agencia Estatal de Investigación (AEI) | - |
dc.contributor.funder | Ministerio de Economía y Competitividad (MINECO) | - |
dc.description.peerreviewed | Peer review | es |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000781 | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100001711 | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100001871 | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100011033 | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003329 | - |
dc.type.hasVersion | info:eu-repo/semantics/publishedVersion | - |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/H2020/724427 | - |
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