Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/29372
DC Field | Value | Language |
---|---|---|
dc.contributor.author | De Marco, B. | en_US |
dc.contributor.author | PONTI, GABRIELE | en_US |
dc.contributor.author | Petrucci, P. O. | en_US |
dc.contributor.author | Clavel, M. | en_US |
dc.contributor.author | Corbel, S. | en_US |
dc.contributor.author | Belmont, R. | en_US |
dc.contributor.author | Chakravorty, S. | en_US |
dc.contributor.author | Coriat, M. | en_US |
dc.contributor.author | Drappeau, S. | en_US |
dc.contributor.author | Ferreira, J. | en_US |
dc.contributor.author | Henri, G. | en_US |
dc.contributor.author | Malzac, J. | en_US |
dc.contributor.author | Rodriguez, J. | en_US |
dc.contributor.author | Tomsick, J. A. | en_US |
dc.contributor.author | Ursini, Francesco | en_US |
dc.contributor.author | Zdziarski, A. A. | en_US |
dc.date.accessioned | 2020-12-30T13:04:37Z | - |
dc.date.available | 2020-12-30T13:04:37Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/29372 | - |
dc.description.abstract | We studied X-ray reverberation lags in the Black hole X-ray binary (BHXRB) GX 339-4 at the end of the 2014-2015 outburst. We analysed data from an XMM-Newton campaign covering the end of the transition from the soft to hard state, and the decrease of luminosity in the hard state. During all the observations we detected, at high frequencies, significant disc variability, responding to variations of the power-law emission with an average time delay of ∼0.009 ± 0.002 s. These new detections of disc thermal reverberation add to those previously obtained and suggest the lag to be always present in hard and hard-intermediate states. Our study reveals a net decrease of lag amplitude as a function of luminosity. We ascribe this trend to variations of the inner flow geometry. A possible scenario implies a decrease of the inner disc truncation radius as the luminosity increases at the beginning of the outburst, followed by an increase of the inner disc truncation radius as the luminosity decreases at the end of the outburst. Finally, we found hints of FeK reverberation (∼3σ significance) during the best quality observation of the XMM monitoring. The lag at the FeK energy has similar amplitude as that of the thermally reprocessed component, as expected if the same irradiated region of the disc is responsible for producing both the thermalized and reflected components. This finding suggests FeK reverberation in BHXRBs to be at the reach of current detectors provided observations of sufficiently long exposure are available. | en_US |
dc.language.iso | eng | en_US |
dc.title | Evolution of the reverberation lag in GX 339-4 at the end of an outburst | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stx1649 | en_US |
dc.identifier.scopus | 2-s2.0-85037337804 | en_US |
dc.identifier.isi | 000409022700012 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/471/2/1475/3922851 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 471 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 1475 | en_US |
dc.type.referee | REF_1 | 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 | 2017MNRAS.471.1475D | 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.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.orcid | 0000-0003-0293-3608 | - |
crisitem.author.orcid | 0000-0001-9442-7897 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
1706.10053.pdf | preprint | 1.04 MB | Adobe PDF | View/Open |
stx1649.pdf | pdf editoriale | 1.04 MB | Adobe PDF | View/Open |
Page view(s)
73
checked on Sep 18, 2024
Download(s)
31
checked on Sep 18, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.