Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/28762
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Bhargava, Yash | en_US |
dc.contributor.author | BELLONI, Tomaso Maria Melchiorre | en_US |
dc.contributor.author | Bhattacharya, Dipankar | en_US |
dc.contributor.author | Misra, Ranjeev | en_US |
dc.date.accessioned | 2020-12-09T16:06:47Z | - |
dc.date.available | 2020-12-09T16:06:47Z | - |
dc.date.issued | 2019 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28762 | - |
dc.description.abstract | We report the results of the analysis of an AstroSat observation of the black hole candidate MAXI J1535-571 during its hard-intermediate state. We studied the evolution of the spectral and timing parameters of the source during the observation. The observation covered a period of ∼5 d and consisted of 66 continuous segments, corresponding to individual spacecraft orbits. Each segment was analysed independently. The source count rate increased roughly linearly by ∼30 per cent. We modelled the spectra as a combination of radiation from a thermal disc component and a power law. The timing analysis revealed the presence of strong quasi-periodic oscillations with centroid frequency ν<SUB>QPO</SUB> fluctuating in the range of 1.7-3.0 Hz. We found a tight correlation between the QPO centroid frequency ν<SUB>QPO</SUB> and the power-law spectral index Γ, while ν<SUB>QPO</SUB> appeared not to be correlated with the linearly increasing flux itself. We discuss the implications of these results on physical models of accretion. | en_US |
dc.language.iso | eng | en_US |
dc.title | Spectro-timing analysis of MAXI J1535-571 using AstroSat | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stz1774 | en_US |
dc.identifier.scopus | 2-s2.0-85073723356 | en_US |
dc.identifier.isi | 000482319700056 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/488/1/720/5525097 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 488 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 720 | 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 | 2019MNRAS.488..720B | 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::PE9_6 Stars and stellar systems | 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.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.orcid | 0000-0001-9621-3796 | - |
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