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Campo DC | Valor | Idioma |
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dc.rights.license | © ESO 2019 | - |
dc.contributor.author | Solano, E. | - |
dc.contributor.author | Martín, E. L. | - |
dc.contributor.author | Caballero, J. A. | - |
dc.contributor.author | Rodrigo, C. | - |
dc.contributor.author | Angulo, R. E. | - |
dc.contributor.author | Alcaniz, J. S. | - |
dc.contributor.author | Borges Fernandes, M. | - |
dc.contributor.author | Cenarro, A. J. | - |
dc.contributor.author | Cristóbal Hornillos, D. | - |
dc.contributor.author | Dupke, R. A. | - |
dc.contributor.author | Alfaro, Emilio J. | - |
dc.contributor.author | Ederoclite, A. | - |
dc.contributor.author | Jiménez Esteban, F. M. | - |
dc.contributor.author | Hernández Jiménez, J. A. | - |
dc.contributor.author | Hernández Monteagudo, C. | - |
dc.contributor.author | Lopes de Oliveira, R. | - |
dc.contributor.author | López Sanjuan, C. | - |
dc.contributor.author | Marín Franch, A. | - |
dc.contributor.author | Mendes de Oliveira, Claudia L. | - |
dc.contributor.author | Moles, M. | - |
dc.contributor.author | Orsi, Álvaro A. | - |
dc.contributor.author | Schmidtobreick, L. | - |
dc.contributor.author | Sobral, D. | - |
dc.contributor.author | Sodré, L. | - |
dc.contributor.author | Varela, J. | - |
dc.contributor.author | Vázquez Ramió, H. | - |
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 | 2021-04-14T12:48:33Z | - |
dc.date.available | 2021-04-14T12:48:33Z | - |
dc.date.issued | 2019-06-27 | - |
dc.identifier.citation | Astronomy and Astrophysics 627: A29(2019) | es |
dc.identifier.issn | 0004-6361 | - |
dc.identifier.other | https://www.aanda.org/articles/aa/full_html/2019/07/aa35256-19/aa35256-19.html | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12666/373 | - |
dc.description.abstract | Context. Ultracool dwarfs are objects with spectral types equal to or later than M7. Most of them have been discovered using wide-field imaging surveys. The Virtual Observatory has proven to be very useful for efficiently exploiting these astronomical resources. Aims. We aim to validate a Virtual Observatory methodology designed to discover and characterise ultracool dwarfs in the J-PLUS photometric survey. J-PLUS is a multiband survey carried out with the wide-angle T80Cam optical camera mounted on the 0.83 m telescope JAST/T80 in the Observatorio Astrofísico de Javalambre. We make use of the Internal Data Release covering 528 deg2. Methods. We complemented J-PLUS photometry with other catalogues in the optical and infrared using VOSA, a Virtual Observatory tool that estimates physical parameters from the spectral energy distribution fitting to collections of theoretical models. Objects identified as ultracool dwarfs were distinguished from background M giants and highly reddened stars using parallaxes and proper motions from Gaia DR2. Results. We identify 559 ultracool dwarfs, ranging from i = 16.2 mag to i = 22.4 mag, of which 187 are candidate ultracool dwarfs not previously reported in the literature. This represents an increase in the number of known ultracool dwarfs of about 50% in the region of the sky we studied, particularly at the faint end of our sensitivity, which is interesting as reference for future wide and deep surveys such as Euclid. Three candidates are interesting targets for exoplanet surveys because of their proximity (distances less than 40 pc). We also analysed the kinematics of ultracool dwarfs in our catalogue and found evidence that it is consistent with a Galactic thin-disc population, except for six objects that might be members of the thick disc. Conclusion. The results we obtained validate the proposed methodology, which will be used in future J-PLUS and J-PAS releases. Considering the region of the sky covered by the Internal Data Release used in this work, we estimate that 3000–3500 new ultracool dwarfs will be discovered at the end of the J-PLUS project. | es |
dc.description.sponsorship | We thank our referee, Zenghua Zhang, for his constructive suggestions. We warmly thank the J-PLUS collaboration, in particular, S. Akras, A. Alvarez, P. Coelho, and V. Placco for constructive comments that helped to improve the presentation of the results. We acknowledge use of the ADS bibliographic services. This research has made use of the Aladin sky atlas developed at CDS, Strasbourg Observatory, France. This publication makes use of VOSA, developed under the Spanish Virtual Observatory project supported from the Spanish MINECO through grant AyA2017-84089. This work has made use of data from the European Space Agency (ESA) mission Gaia, processed by the Gaia Data Processing and Analysis Consortium (DPAC). We also extensively made use of the Vizier and SIMBAD services, both operated at CDS, Strasbourg, France. Funding for the J-PLUS Project has been provided by the Governments of Spain and Aragón through the Fondo de Inversiones de Teruel, the Spanish Ministry of Economy and Competitiveness (MINECO; under grants AYA2015-66211-C2-1-P, AYA2015-66211-C2-2, AyA2012-30789 and ICTS-2009-14), and European FEDER funding (FCDD10-4E-867, FCDD13-4E-2685). The Brazilian agencies FAPERJ and FAPESP as well as the National Observatory of Brazil have also contributed to this project. RAD acknowledges support from CNPq through BP grant 312307/2015-2, CSIC through grant COOPB20263, FINEP grants REF. R 1217/13 – 01.13.0279.00 and REF 0859/10 – 01.10.0663.00 for hardware support for the J-PLUS project through the National Observatory of Brazil. E. L. Martín acknowledges support from project AYA2015-69350-C3-1-P. J. A. Hernandez-Jimenez thanks to Brazilian institution CNPq (project 150237/2017-0) and Chilean institution CONICYT through Programa de Astronomía, Fondo ALMA-CONICYT 2017 (project 31170038). R. Lopes was partially supported by the Brazilian agency CNPq (PQ 302037/2015-2 and PDE 200289/2017-9). F. J. E. acknowledges financial support from the ASTERICS project (ID:653477, H2020-EU.1.4.1.1. Developing new world-class research infrastructures). This work is based on observations made with the JAST/ T80 telescope at the Observatorio Astrofísico de Javalambre (OAJ) in Teruel, owned, managed and operated by the Centro de Estudios de Física del Cosmos de Aragón. We thank the OAJ Data Processing and Archiving Unit (UPAD) for reducing and calibrating the OAJ data used in this work; 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/ES/MINECO/AYA2015-66211-C2-1-P | - |
dc.relation | info:eu-repo/grantAgreement/ES/MINECO/AYA2015-66211-C2-2-P | - |
dc.relation | info:eu-repo/grantAgreement/ES/MINECO/AYA2012-30789 | - |
dc.relation | info:eu-repo/grantAgreement/EC/FEDER/FCDD10-4E-867 | - |
dc.relation | info:eu-repo/grantAgreement/EC/FEDER/FCDD13-4E-2685 | - |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-84089-P/ES/EL OBSERVATORIO VIRTUAL ESPAÑOL. EXPLOTACION CIENTIFICO-TECNICA DE ARCHIVOS ASTRONOMICOS/ | - |
dc.relation | info:eu-repo/grantAgreement/MINECO//AYA2015-69350-C3-1-P | - |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | es |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | - |
dc.subject | Surveys | es |
dc.subject | Virtual observatory tools | es |
dc.subject | Stars: low mass | es |
dc.subject | Brown dwarfs | es |
dc.title | J-PLUS: Discovery and characterisation of ultracool dwarfs using Virtual Observatory tools | es |
dc.type | info:eu-repo/semantics/article | - |
dc.contributor.orcid | Caballero, J. A. [https://orcid.org/0000-0002-7349-1387] | - |
dc.contributor.orcid | Jailson Souza de Alcaniz. [https://orcid.org/0000-0003-2441-1413] | - |
dc.contributor.orcid | Alfaro, Emilio J. [https://orcid.org/0000-0002-2234-7035] | - |
dc.identifier.doi | 10.1051/0004-6361/201935256 | - |
dc.identifier.e-issn | 1432-0746 | - |
dc.contributor.funder | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | - |
dc.contributor.funder | Ministerio de Economía y Competitividad (MINECO) | - |
dc.contributor.funder | Agencia Estatal de Investigación (AEI) | - |
dc.contributor.funder | Comisión Nacional de Investigación Científica y Tecnológica (CONICYT) | - |
dc.contributor.funder | European Research Council (ERC) | - |
dc.description.peerreviewed | Peer review | es |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003593 | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003329 | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100011033 | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100002848 | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000781 | - |
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 | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/H2020/653477 | - |
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