Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/27732
Campo DC | Valore | Lingua |
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dc.contributor.author | Girart, J. M. | en_US |
dc.contributor.author | Fernández-López, M. | en_US |
dc.contributor.author | Li, Z. -Y. | en_US |
dc.contributor.author | Yang, H. | en_US |
dc.contributor.author | Estalella, R. | en_US |
dc.contributor.author | Anglada, G. | en_US |
dc.contributor.author | Áñez-López, N. | en_US |
dc.contributor.author | Busquet, G. | en_US |
dc.contributor.author | Carrasco-González, C. | en_US |
dc.contributor.author | Curiel, S. | en_US |
dc.contributor.author | Galvan-Madrid, R. | en_US |
dc.contributor.author | Gómez, J. F. | en_US |
dc.contributor.author | de Gregorio-Monsalvo, I. | en_US |
dc.contributor.author | Jiménez-Serra, I. | en_US |
dc.contributor.author | Krasnopolsky, R. | en_US |
dc.contributor.author | Martí, J. | en_US |
dc.contributor.author | Osorio, M. | en_US |
dc.contributor.author | Padovani, Marco | en_US |
dc.contributor.author | Rao, R. | en_US |
dc.contributor.author | Rodríguez, L. F. | en_US |
dc.contributor.author | Torrelles, J. M. | en_US |
dc.date.accessioned | 2020-10-12T14:17:13Z | - |
dc.date.available | 2020-10-12T14:17:13Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27732 | - |
dc.description.abstract | Here we present deep (16 μJy beam<SUP>-1</SUP>), very high (40 mas) angular resolution 1.14 mm, polarimetric, Atacama Large Millimeter/submillimeter Array (ALMA) observations toward the massive protostar driving the HH 80-81 radio jet. The observations clearly resolve the disk oriented perpendicularly to the radio jet, with a radius of ≃0.″171 (∼291 au at 1.7 kpc distance). The continuum brightness temperature, the intensity profile, and the polarization properties clearly indicate that the disk is optically thick for a radius of R ≲ 170 au. The linear polarization of the dust emission is detected almost all along the disk, and its properties suggest that dust polarization is produced mainly by self-scattering. However, the polarization pattern presents a clear differentiation between the inner (optically thick) part of the disk and the outer (optically thin) region of the disk, with a sharp transition that occurs at a radius of ∼0.″1 (∼170 au). The polarization characteristics of the inner disk suggest that dust settling has not occurred yet with a maximum dust grain size between 50 and 500 μm. The outer part of the disk has a clear azimuthal pattern but with a significantly higher polarization fraction compared to the inner disk. This pattern is broadly consistent with the self-scattering of a radiation field that is beamed radially outward, as expected in the optically thin outer region, although contribution from non-spherical grains aligned with respect to the radiative flux cannot be excluded. | en_US |
dc.language.iso | eng | en_US |
dc.title | Resolving the Polarized Dust Emission of the Disk around the Massive Star Powering the HH 80-81 Radio Jet | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/2041-8213/aab76b | en_US |
dc.identifier.scopus | 2-s2.0-85045538510 | en_US |
dc.identifier.isi | 000428772600001 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/2041-8213/aab76b | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 856 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | L27 | en_US |
dc.type.referee | REF_1 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018ApJ...856L..27G | en_US |
dc.relation.fund | H2020 | en_US |
dc.relation.project | AstroFIt2 (Astronomy Fellowships in Italy 2) | 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.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.orcid | 0000-0003-2303-0096 | - |
crisitem.project.grantno | 664931 | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
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arxiv1803.06165.pdf | preprint | 671.2 kB | Adobe PDF | Visualizza/apri |
paper.pdf | Pdf editoriale | 755.56 kB | Adobe PDF | Visualizza/apri |
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