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Campo DC | Valor | Idioma |
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dc.rights.license | © ESO 2020 | - |
dc.contributor.author | Casasayas Barris, N. | - |
dc.contributor.author | Pallé, E. | - |
dc.contributor.author | Yan, F. | - |
dc.contributor.author | Chen, G. | - |
dc.contributor.author | Luque, R. | - |
dc.contributor.author | Strangret, M. | - |
dc.contributor.author | Nagel, E. | - |
dc.contributor.author | Zechmeister, M. | - |
dc.contributor.author | Oshagh, M. | - |
dc.contributor.author | Sanz Forcada, J. | - |
dc.contributor.author | Nortmann, L. | - |
dc.contributor.author | Alonso Floriano, F. J. | - |
dc.contributor.author | Molaverdikhani, K. | - |
dc.contributor.author | Montes, D. | - |
dc.contributor.author | Quirrenbach, A. | - |
dc.contributor.author | Reiners, A. | - |
dc.contributor.author | Ribas, I. | - |
dc.contributor.author | Sánchez López, A. | - |
dc.contributor.author | Zapatero Osorio, M. R. | - |
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 | 2021-03-24T08:44:11Z | - |
dc.date.available | 2021-03-24T08:44:11Z | - |
dc.date.issued | 2020-04-03 | - |
dc.identifier.citation | Astronomy & Astrophysics 635: A206 (2020) | es |
dc.identifier.issn | 0004-6361 | - |
dc.identifier.other | https://www.aanda.org/articles/aa/abs/2020/03/aa37221-19/aa37221-19.html | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12666/123 | - |
dc.description.abstract | HD 209458b was the first transiting planet discovered, and the first for which an atmosphere, in particular Na I, was detected. With time, it has become one of the most frequently studied planets, with a large diversity of atmospheric studies using low- and high-resolution spectroscopy. Here, we present transit spectroscopy observations of HD 209458b using the HARPS-N and CARMENES spectrographs. We fit the Rossiter-McLaughlin effect by combining radial velocity data from both instruments (nine transits in total), measuring a projected spin-orbit angle of - 1.6 ± 0.3 deg. We also present the analysis of high-resolution transmission spectroscopy around the Na I region at 590 nm, using a total of five transit observations. In contrast to previous studies where atmospheric Na I absorption is detected, we find that for all of the nights, whether individually or combined, the transmission spectra can be explained by the combination of the centre-to-limb variation and the Rossiter-McLaughlin effect. This is also observed in the time-evolution maps and transmission light curves, but at lower signal-to-noise ratio. Other strong lines such as Hα, Ca II IRT, the Mg I triplet region, and K I D1 are analysed, and are also consistent with the modelled effects, without considering any contribution from the exoplanet atmosphere. Thus, the transmission spectrum reveals no detectable Na I absorption in HD 209458b. We discuss how previous pioneering studies of this benchmark object may have overlooked these effects. While for some star-planet systems these effects are small, for other planetary atmospheres the results reported in the literature may require revision. © ESO 2020. | es |
dc.description.sponsorship | Based on observations made with the Italian Telescopio Nazionale Galileo (TNG) operated on the island of La Palma by the Fundacion Galileo Galilei of the INAF (Istituto Nazionale di Astrofisica) at the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias. CARMENES is an instrument for the Centro Astronomico Hispano-Aleman de Calar Alto (CAHA, Almeria, Spain). CARMENES is funded by the German Max-Planck-Gesellschaft (MPG), the Spanish Consejo Superior de Investigaciones Cientificas (CSIC), the European Union through FEDER/ERF FICTS-2011-02 funds, and the members of the CARMENES Consortium (Max-Planck-Institut fur Astronomie, Instituto de Astrofisica de Andalucia, Landessternwarte Konigstuhl, Institut de Ciencies de l'Espai, Insitut fur Astrophysik Gottingen, Universidad Complutense de Madrid, Thuringer Landessternwarte Tautenburg, Instituto de Astrofisica de Canarias, Hamburger Sternwarte, Centro de Astrobiologia and Centro Astronomico Hispano- Aleman), with additional contributions by the Spanish Ministry of Economy, the German Science Foundation through the Major Research Instrumentation Programme and DFG Research Unit FOR2544 "Blue Planets around Red Stars", the Klaus Tschira Stiftung, the states of Baden-Wurttemberg and Niedersachsen, and by the Junta de Andalucia. This work is partly financed by the Spanish Ministry of Economics and Competitiveness through project ESP2016-80435-C2-2-R and ESP2017-87143-R. G.C. acknowledges the support by the Natural Science Foundation of Jiangsu Province (Grant No. BK20190110), the National Natural Science Foundation of China (Grant No. 11503088, 11573073, 11573075). F.Y. acknowledges the support of the DFG priority program SPP 1992 "Exploring the Diversity of Extrasolar Planets (RE 1664/16-1)". This work made use of PyAstronomy and of the VALD database, operated at Uppsala University, the Institute of Astronomy RAS in Moscow, and the University of Vienna ; 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 | EDP Sciences | es |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2016-80435-C2-2-R/ES/HACIA LA CARACTERIZACION DE ATMOSFERAS PLANETARIAS Y LA BUSQUEDA DE VIDA: CHEOPS, CARMENES, PLATO, ARIEL Y HIRES/ | - |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2017-87143-R/ES/ESTRUCTURA, PROCESOS Y CLIMA DE LAS ATMOSFERAS DE LA TIERRA Y EXO-PLANETAS/ | - |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | es |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | - |
dc.subject | Planetary systems | es |
dc.subject | Planets and satellites: individual: HD 209458b | es |
dc.subject | Planets and satellites: atmospheres | es |
dc.subject | methods: observational | es |
dc.subject | Techniques: spectroscopic | es |
dc.title | Is there Na i in the atmosphere of HD 209458b?: Effect of the centre-to-limb variation and Rossiter-McLaughlin effect in transmission spectroscopy studies | es |
dc.type | info:eu-repo/semantics/article | es |
dc.contributor.orcid | 0000-0002-2891-8222 | - |
dc.contributor.orcid | 0000-0003-0987-1593 | - |
dc.contributor.orcid | 0000-0001-6470-2907 | - |
dc.contributor.orcid | 0000-0001-5664-2852 | - |
dc.identifier.doi | 10.1051/0004-6361/201937221 | - |
dc.identifier.e-issn | 1432-0746 | - |
dc.contributor.funder | Deutsche Forschungsgemeinschaft (DFG) | - |
dc.contributor.funder | Agencia Estatal de Investigación (AEI) | - |
dc.contributor.funder | Junta de Andalucía | - |
dc.contributor.funder | National Natural Science Foundation of China (NSFC) | - |
dc.description.peerreviewed | Peer review | es |
dc.type.hasVersion | info:eu-repo/semantics/publishedVersion | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | - |
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