Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/28235
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Giovannini, Gabriele | en_US |
dc.contributor.author | Savolainen, T. | en_US |
dc.contributor.author | ORIENTI, Monica | en_US |
dc.contributor.author | Nakamura, M. | en_US |
dc.contributor.author | Nagai, H. | en_US |
dc.contributor.author | Kino, M. | en_US |
dc.contributor.author | GIROLETTI, MARCELLO | en_US |
dc.contributor.author | Hada, K. | en_US |
dc.contributor.author | Bruni, Gabriele | en_US |
dc.contributor.author | Kovalev, Y. Y. | en_US |
dc.contributor.author | Anderson, J. M. | en_US |
dc.contributor.author | D'AMMANDO, FILIPPO | en_US |
dc.contributor.author | Hodgson, J. | en_US |
dc.contributor.author | Honma, M. | en_US |
dc.contributor.author | Krichbaum, T. P. | en_US |
dc.contributor.author | Lee, S. -S. | en_US |
dc.contributor.author | Lico, R. | en_US |
dc.contributor.author | Lisakov, M. M. | en_US |
dc.contributor.author | Lobanov, A. P. | en_US |
dc.contributor.author | Petrov, L. | en_US |
dc.contributor.author | Sohn, B. W. | en_US |
dc.contributor.author | Sokolovsky, K. V. | en_US |
dc.contributor.author | Voitsik, P. A. | en_US |
dc.contributor.author | Zensus, J. A. | en_US |
dc.contributor.author | Tingay, S. | en_US |
dc.date.accessioned | 2020-11-09T15:58:20Z | - |
dc.date.available | 2020-11-09T15:58:20Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 2397-3366 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28235 | - |
dc.description.abstract | Understanding the formation of relativistic jets in active galactic nuclei remains an elusive problem<SUP>1</SUP>. This is partly because observational tests of jet formation models suffer from the limited angular resolution of ground-based very-long-baseline interferometry that has thus far been able to probe the structure of the jet acceleration and collimation region in only two sources<SUP>2,3</SUP>. Here, we report observations of 3C84 (NGC 1275)—the central galaxy of the Perseus cluster—made with an interferometric array including the orbiting radio telescope of the RadioAstron<SUP>4</SUP> mission. The data transversely resolve the edge-brightened jet in 3C84 only 30 μas from the core, which is ten times closer to the central engine than was possible in previous ground-based observations<SUP>5</SUP> and allows us to measure the jet collimation profile from 10<SUP>2</SUP> to 10<SUP>4</SUP> gravitational radii (r<SUB>g</SUB>) from the black hole. The previously found<SUP>5</SUP>, almost cylindrical jet profile on scales larger than a few thousand r<SUB>g</SUB> is seen to continue at least down to a few hundred r<SUB>g</SUB> from the black hole, and we find a broad jet with a transverse radius of ≳250 r<SUB>g</SUB> at only 350 r<SUB>g</SUB> from the core. This implies that either the bright outer jet layer goes through a very rapid lateral expansion on scales ≲10<SUP>2</SUP> r<SUB>g</SUB> or it is launched from the accretion disk. | en_US |
dc.language.iso | eng | en_US |
dc.title | A wide and collimated radio jet in 3C84 on the scale of a few hundred gravitational radii | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1038/s41550-018-0431-2 | en_US |
dc.identifier.scopus | 2-s2.0-85048087999 | en_US |
dc.identifier.isi | 000434357700016 | en_US |
dc.identifier.url | https://www.nature.com/articles/s41550-018-0431-2 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 2 | en_US |
dc.relation.issue | 6 | en_US |
dc.relation.firstpage | 472 | en_US |
dc.relation.lastpage | 477 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 25 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | USA | en_US |
dc.contributor.country | DEU | en_US |
dc.contributor.country | KOR | en_US |
dc.contributor.country | JPN | en_US |
dc.contributor.country | RUS | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | NATURE ASTRONOMY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018NatAs...2..472G | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.fulltext | With Fulltext | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
crisitem.journal.journalissn | 2397-3366 | - |
crisitem.journal.ance | E240167 | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.dept | IAPS Roma | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.orcid | 0000-0003-4916-6362 | - |
crisitem.author.orcid | 0000-0003-4470-7094 | - |
crisitem.author.orcid | 0000-0002-8657-8852 | - |
crisitem.author.orcid | 0000-0002-5182-6289 | - |
crisitem.author.orcid | 0000-0001-7618-7527 | - |
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File | Descrizione | Dimensioni | Formato | |
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1804.02198.pdf | preprint | 738.2 kB | Adobe PDF | Visualizza/apri |
3c84-nature.pdf | [Administrators only] | 1.93 MB | Adobe PDF |
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