Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/31161
DC Field | Value | Language |
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dc.contributor.author | BELLONI, Tomaso Maria Melchiorre | en_US |
dc.contributor.author | Liang Zhang | en_US |
dc.contributor.author | Nikolaos D. Kylafis | en_US |
dc.contributor.author | Pablo Reig | en_US |
dc.contributor.author | Diego Altamirano | en_US |
dc.date.accessioned | 2021-11-26T13:52:46Z | - |
dc.date.available | 2021-11-26T13:52:46Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31161 | - |
dc.description.abstract | The fast variability observed in the X-ray emission from black-hole binaries has a very complex phenomenology, but offers the possibility to investigate directly the properties of the inner accretion flow. In particular, type-B oscillations in the 2-8 Hz range, observed in the Soft-Intermediate state, have been associated to the emission from a relativistic jet. We present the results of the timing and spectral analysis of a set of observations of the bright transient MAXI J1348-630 made with the NICER telescope. The observations are in the brightest part of the outburst and all feature a strong type-B QPO at ~4.5 Hz. We compute the energy dependence of the fractional rms and the phase lags at the QPO frequency, obtaining high signal-to-noise data and sampling for the first time at energies below 2 keV. The fractional rms decreases from more than 10% at 9 keV to 0.6% at 1.5 keV, and is constant below that energy. Taking the 2-3 keV band as reference, photons at all energies show a hard lag, increasing with the distance from the reference band. The behaviour below 2 keV has never been observed before, due to the higher energy bandpass of previous timing instruments. The energy spectrum can be fitted with a standard model for this state, consisting of a thin disc component and a harder power law, plus an emission line between 6 and 7 keV. We discuss the results, concentrating on the phase lags, and show that they can be interpreted within a Comptonization model. | en_US |
dc.language.iso | eng | en_US |
dc.title | Time lags of the type-B QPO in MAXI J1348-630 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/staa1843 | en_US |
dc.identifier.scopus | 2-s2.0-85095421115 | en_US |
dc.identifier.isi | WOS:000574923200023 | en_US |
dc.identifier.url | http://arxiv.org/abs/2006.12872v1 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/496/4/4366/5863226 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 496 | en_US |
dc.relation.issue | 4 | en_US |
dc.relation.firstpage | 4366 | en_US |
dc.relation.lastpage | 4371 | 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 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2020MNRAS.496.4366B | 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.orcid | 0000-0001-9621-3796 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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staa1843.pdf | Pdf editoriale | 372.81 kB | Adobe PDF | View/Open |
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