Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28410
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Reeves, J. N. | en_US |
dc.contributor.author | BRAITO, Valentina | en_US |
dc.contributor.author | NARDINI, EMANUELE | en_US |
dc.contributor.author | Lobban, A. P. | en_US |
dc.contributor.author | Matzeu, G. A. | en_US |
dc.contributor.author | Costa, M. T. | en_US |
dc.date.accessioned | 2020-11-18T11:41:26Z | - |
dc.date.available | 2020-11-18T11:41:26Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 2041-8205 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28410 | - |
dc.description.abstract | Past X-ray observations of the nearby luminous quasar PDS 456 (at z = 0.184) have revealed a wide angle accretion disk wind, with an outflow velocity of ∼-0.25c. Here, we unveil a new, relativistic component of the wind through hard X-ray observations with NuSTAR and XMM-Newton, obtained in 2017 March when the quasar was in a low-flux state. This very fast wind component, with an outflow velocity of -0.46 ± 0.02c, is detected in the iron K band, in addition to the -0.25c wind zone. The relativistic component may arise from the innermost disk wind, launched from close to the black hole at a radius of ∼10 gravitational radii. The opacity of the fast wind also increases during a possible obscuration event lasting for 50 ks. We suggest that the very fast wind may only be apparent during the lowest X-ray flux states of PDS 456, becoming overly ionized as the luminosity increases. Overall, the total wind power may even approach the Eddington value. | en_US |
dc.language.iso | eng | en_US |
dc.title | A New Relativistic Component of the Accretion Disk Wind in PDS 456 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/2041-8213/aaaae1 | en_US |
dc.identifier.scopus | 2-s2.0-85042094241 | en_US |
dc.identifier.isi | 000424631700006 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/2041-8213/aaaae1 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 854 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | L8 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL LETTERS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018ApJ...854L...8R | 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. Brera | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.orcid | 0000-0002-2629-4989 | - |
crisitem.author.orcid | 0000-0001-9226-8992 | - |
crisitem.journal.journalissn | 2041-8205 | - |
crisitem.journal.ance | E196528 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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Reeves_2018_ApJL_854_L8.pdf | Pdf editoriale | 443.62 kB | Adobe PDF | View/Open |
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