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DC Field | Value | Language |
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dc.citation.endPage | 1367 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 1359 | - |
dc.citation.title | NATURE ASTRONOMY | - |
dc.citation.volume | 7 | - |
dc.contributor.author | Fuentes, Antonio | - |
dc.contributor.author | Gomez, Jose L. | - |
dc.contributor.author | Marti, Jose M. | - |
dc.contributor.author | Perucho, Manel | - |
dc.contributor.author | Zhao, Guang-Yao | - |
dc.contributor.author | Lico, Rocco | - |
dc.contributor.author | Lobanov, Andrei P. | - |
dc.contributor.author | Bruni, Gabriele | - |
dc.contributor.author | Kovalev, Yuri Y. | - |
dc.contributor.author | Chael, Andrew | - |
dc.contributor.author | Akiyama, Kazunori | - |
dc.contributor.author | Bouman, Katherine L. | - |
dc.contributor.author | Sun, He | - |
dc.contributor.author | Cho, Ilje | - |
dc.contributor.author | Traianou, Efthalia | - |
dc.contributor.author | Toscano, Teresa | - |
dc.contributor.author | Dahale, Rohan | - |
dc.contributor.author | Foschi, Marianna | - |
dc.contributor.author | Gurvits, Leonid I. | - |
dc.contributor.author | Jorstad, Svetlana | - |
dc.contributor.author | Kim, Jae-Young | - |
dc.contributor.author | Marscher, Alan P. | - |
dc.contributor.author | Mizuno, Yosuke | - |
dc.contributor.author | Ros, Eduardo | - |
dc.contributor.author | Savolainen, Tuomas | - |
dc.date.accessioned | 2024-09-11T14:35:08Z | - |
dc.date.available | 2024-09-11T14:35:08Z | - |
dc.date.created | 2024-09-11 | - |
dc.date.issued | 2023-11 | - |
dc.description.abstract | Supermassive black holes at the centre of active galactic nuclei power some of the most luminous objects in the Universe. Typically, very-long-baseline interferometric observations of blazars have revealed only funnel-like morphologies with little information on the internal structure of the ejected plasma or have lacked the dynamic range to reconstruct the extended jet emission. Here we present microarcsecond-scale angular resolution images of the blazar 3C 279 obtained at 22 GHz with the space very-long-baseline interferometry mission RadioAstron, which allowed us to resolve the jet transversely and reveal several filaments produced by plasma instabilities in a kinetically dominated flow. The polarimetric properties derived from our high-angular-resolution and broad-dynamic-range images are consistent with the presence of a helical magnetic field threaded to the jet. We infer a clockwise rotation as seen in the direction of flow motion with an intrinsic helix pitch angle of similar to 45 degrees and a Lorentz factor of similar to 13 at the time of observation. We also propose a model to explain blazar jet radio variability in which emission features travelling down the jet may manifest as a result of differential Doppler boosting within the filaments, as opposed to the standard shock-in-jet model. Characterizing such variability is particularly important given the relevance of blazar physics from cosmic particle acceleration to standard candles in cosmology. | - |
dc.identifier.bibliographicCitation | NATURE ASTRONOMY, v.7, no.11, pp.1359 - 1367 | - |
dc.identifier.doi | 10.1038/s41550-023-02105-7 | - |
dc.identifier.issn | 2397-3366 | - |
dc.identifier.scopusid | 2-s2.0-85174943816 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/83736 | - |
dc.identifier.wosid | 001090459300003 | - |
dc.language | 영어 | - |
dc.publisher | NATURE PORTFOLIO | - |
dc.title | Filamentary structures as the origin of blazar jet radio variability | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Astronomy & Astrophysics | - |
dc.relation.journalResearchArea | Astronomy & Astrophysics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | SIZE | - |
dc.subject.keywordPlus | ACTIVE GALACTIC NUCLEI | - |
dc.subject.keywordPlus | MAGNETIC-FIELDS | - |
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