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dc.contributor.authorThe Event Horizon Telescope Collaborationes_ES
dc.contributor.authorAlberdi, Antxónes_ES
dc.contributor.authorGómez, José L.es_ES
dc.date.accessioned2019-04-11T13:52:35Z-
dc.date.available2019-04-11T13:52:35Z-
dc.date.issued2019-04-10-
dc.identifier.citationAstrophysical Journal Letters 875(1): L6 (2019)es_ES
dc.identifier.issn2041-8205-
dc.identifier.urihttp://hdl.handle.net/10261/179945-
dc.description.abstractWe present measurements of the properties of the central radio source in M87 using Event Horizon Telescope data obtained during the 2017 campaign. We develop and fit geometric crescent models (asymmetric rings with interior brightness depressions) using two independent sampling algorithms that consider distinct representations of the visibility data. We show that the crescent family of models is statistically preferred over other comparably complex geometric models that we explore. We calibrate the geometric model parameters using general relativistic magnetohydrodynamic (GRMHD) models of the emission region and estimate physical properties of the source. We further fit images generated from GRMHD models directly to the data. We compare the derived emission region and black hole parameters from these analyses with those recovered from reconstructed images. There is a remarkable consistency among all methods and data sets. We find that >50% of the total flux at arcsecond scales comes from near the horizon, and that the emission is dramatically suppressed interior to this region by a factor >10, providing direct evidence of the predicted shadow of a black hole. Across all methods, we measure a crescent diameter of 42 ± 3 μas and constrain its fractional width to be <0.5. Associating the crescent feature with the emission surrounding the black hole shadow, we infer an angular gravitational radius of GM/Dc2 = 3.8 ± 0.4 μas. Folding in a distance measurement of ${16.8}_{-0.7}^{+0.8}\,\mathrm{Mpc}$ gives a black hole mass of $M=6.5\pm 0.2{| }_{\mathrm{stat}}\pm 0.7{| }_{\mathrm{sys}}\times {10}^{9}\hspace{2pt}{M}_{\odot }$. This measurement from lensed emission near the event horizon is consistent with the presence of a central Kerr black hole, as predicted by the general theory of relativity.© 2019. The American Astronomical Society.es_ES
dc.description.sponsorshipThe authors of this Letter thank the following organizations and programs: the Academy of Finland (projects 274477, 284495, 312496); the Advanced European Network of E-infrastructures for Astronomy with the SKA (AENEAS) project, supported by the European Commission Framework Programme Horizon 2020 Research and Innovation action under grant agreement 731016; the Alexander von Humboldt Stiftung; the Black Hole Initiative at Harvard University, through a grant (60477) from the John Templeton Foundation; the China Scholarship Council; Comisión Nacional de Investigación Científica y Tecnológica (CONICYT, Chile, via PIA ACT172033, Fondecyt 1171506, BASAL AFB170002, ALMA-conicyt 31140007); Consejo Nacional de Ciencia y Tecnología (CONACYT, Mexico, projects 104497, 275201, 279006, 281692); the Delaney Family via the Delaney Family John A. Wheeler Chair at Perimeter Institute; Dirección General de Asuntos del Personal Académico-Universidad Nacional 9 The Astrophysical Journal Letters, 875:L1 (17pp), 2019 April 10 The EHT Collaboration et al. Autónoma de México (DGAPA-UNAM, project IN112417); the European Research Council (ERC) Synergy Grant “BlackHoleCam: Imaging the Event Horizon of Black Holes” (grant 610058); the Generalitat Valenciana postdoctoral grant APOSTD/2018/177; the Gordon and Betty Moore Foundation (grants GBMF-3561, GBMF-5278); the Istituto Nazionale di Fisica Nucleare (INFN) sezione di Napoli, iniziative specifiche TEONGRAV; the International Max Planck Research School for Astronomy and Astrophysics at the Universities of Bonn and Cologne; the Jansky Fellowship program of the National Radio Astronomy Observatory (NRAO); the Japanese Government (Monbukagakusho: MEXT) Scholarship; the Japan Society for the Promotion of Science (JSPS) Grant-in-Aid for JSPS Research Fellowship (JP17J08829); JSPS Overseas Research Fellowships; the Key Research Program of Frontier Sciences, Chinesees_ES
dc.description.sponsorshipAcademy of Sciences (CAS, grants QYZDJ-SSW-SLH057, QYZDJ-SSW-SYS008); the Leverhulme Trust Early Career Research Fellowship; the Max-Planck-Gesellschaft (MPG); the Max Planck Partner Group of the MPG and the CAS; the MEXT/JSPS KAKENHI (grants 18KK0090, JP18K13594, JP18K03656, JP18H03721, 18K03709, 18H01245, 25120007); the MIT International Science and Technology Initiatives (MISTI) Funds; the Ministry of Science and Technology (MOST) of Taiwan (105-2112-M-001-025-MY3, 106-2112-M001-011, 106-2119-M-001-027, 107-2119-M-001-017, 107- 2119-M-001-020, and 107-2119-M-110-005); the National Aeronautics and Space Administration (NASA, Fermi Guest Investigator grant 80NSSC17K0649); the National Institute of Natural Sciences (NINS) of Japan; the National Key Research and Development Program of China (grant 2016YFA0400704, 2016YFA0400702); the National Science Foundation (NSF, grants AST-0096454, AST-0352953, AST-0521233, AST0705062, AST-0905844, AST-0922984, AST-1126433, AST1140030, DGE-1144085, AST-1207704, AST-1207730, AST1207752, MRI-1228509, OPP-1248097, AST-1310896, AST1312651, AST-1337663, AST-1440254, AST-1555365, AST1715061, AST-1615796, AST-1614868, AST-1716327, OISE1743747, AST-1816420); the Natural Science Foundation of China (grants 11573051, 11633006, 11650110427, 10625314, 11721303, 11725312, 11873028, 11873073, U1531245, 11473010); the Natural Sciences and Engineering Research Council of Canada (NSERC, including a Discovery Grant and the NSERC Alexander Graham Bell Canada Graduate Scholarships-Doctoral Program); the National Youth Thousand Talents Program of China; the National Research Foundation of Korea (grant 2015-R1D1A1A01056807, the Global PhD Fellowship Grant: NRF-2015H1A2A1033752, and the Korea Research Fellowship Program: NRF-2015H1D3A1066561); the Netherlands Organization for Scientific Research (NWO) VICI award (grant 639.043.513) and Spinoza Prize (SPI 78-409); the New Scientific Frontiers with Precisiones_ES
dc.description.sponsorshipRadio Interferometry Fellowship awarded by the South African Radio Astronomy Observatory (SARAO), which is a facility of the National Research Foundation (NRF), an agency of the Department of Science and Technology (DST) of South Africa; the Onsala Space Observatory (OSO) national infrastructure, for the provisioning of its facilities/observational support (OSO receives funding through the Swedish Research Council under grant 2017-00648); the Perimeter Institute for Theoretical Physics (research at Perimeter Institute is supported by the Government of Canada through the Department of Innovation, Science and Economic Development Canada and by the Province of Ontario through the Ministry of Economic Development, Job Creation and Trade); the Russian Science Foundation (grant 17-12-01029); the Spanish Ministerio de Economía y Competitividad (grants AYA2015-63939-C2-1-P, AYA2016-80889-P); the State Agency for Research of the Spanish MCIU through the “Center of Excellence Severo Ochoa” award for the Instituto de Astrofísica de Andalucía (SEV-2017-0709); the Toray Science Foundation; the US Department of Energy (USDOE) through the Los Alamos National Laboratory (operated by Triad National Security, LLC, for the National Nuclear Security Administration of the USDOE (Contract 89233218CNA000001)); the Italian Ministero dell’Istruzione Università e Ricerca through the grant Progetti Premiali 2012-iALMA (CUP C52I13000140001); the European Unionʼs Horizon 2020 research and innovation programme under grant agreement No 730562 RadioNet; ALMA North America Development Fund; Chandra TM6-17006Xes_ES
dc.language.isoenges_ES
dc.publisherInstitute of Physics Publishinges_ES
dc.publisherAmerican Astronomical Societyes_ES
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/731016es_ES
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/610058es_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2015-63939-C2-1-Pes_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2016-80889-Pes_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2017-0709es_ES
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/730562es_ES
dc.relation.isversionofPublisher's versiones_ES
dc.rightsopenAccesses_ES
dc.subjectBlack hole physicses_ES
dc.subjectGalaxies: individual (M87)es_ES
dc.subjectGravitationes_ES
dc.subjectTechniques: high angular resolutiones_ES
dc.subjectTechniques: interferometrices_ES
dc.titleFirst M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Holees_ES
dc.typeartículoes_ES
dc.identifier.doi10.3847/2041-8213/ab1141-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.3847/2041-8213/ab1141es_ES
dc.identifier.e-issn2041-8213-
dc.contributor.funderAcademy of Finlandes_ES
dc.contributor.funderEuropean Commissiones_ES
dc.contributor.funderAlexander von Humboldt Foundationes_ES
dc.contributor.funderJohn Templeton Foundationes_ES
dc.contributor.funderChina Scholarship Counciles_ES
dc.contributor.funderComisión Nacional de Investigación Científica y Tecnológica (Chile)es_ES
dc.contributor.funderConsejo Nacional de Ciencia y Tecnología (México)es_ES
dc.contributor.funderEuropean Research Counciles_ES
dc.contributor.funderGeneralitat Valencianaes_ES
dc.contributor.funderMinisterio de Economía, Industria y Competitividad (España)es_ES
dc.contributor.funderMinisterio de Ciencia, Innovación y Universidades (España)es_ES
dc.contributor.funderGordon and Betty Moore Foundationes_ES
dc.contributor.funderIstituto Nazionale di Fisica Nuclearees_ES
dc.contributor.funderJapanese Governmentes_ES
dc.contributor.funderJapan Society for the Promotion of Sciencees_ES
dc.contributor.funderChinese Academy of Scienceses_ES
dc.contributor.funderMax Planck Societyes_ES
dc.contributor.funderMinistry of Science and Technology (Taiwan)es_ES
dc.contributor.funderNational Aeronautics and Space Administration (US)es_ES
dc.contributor.funderNational Science Foundation (US)es_ES
dc.contributor.funderNational Natural Science Foundation of Chinaes_ES
dc.contributor.funderNatural Sciences and Engineering Research Council of Canadaes_ES
dc.contributor.funderNational Research Foundation of Koreaes_ES
dc.contributor.funderNetherlands Organization for Scientific Researches_ES
dc.contributor.funderNational Research Foundation (South Africa)es_ES
dc.contributor.funderRussian Science Foundationes_ES
dc.contributor.funderMinistero dell'Istruzione, dell'Università e della Ricercaes_ES
dc.relation.csices_ES
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dc.contributor.orcidAlberdi, Antxón [0000-0002-9371-1033]es_ES
dc.contributor.orcidGómez Fernández, J. L. [0000-0003-4190-7613]es_ES
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