Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/27739
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Pintore, Fabio | en_US |
dc.contributor.author | ZAMPIERI, Luca | en_US |
dc.contributor.author | MEREGHETTI, Sandro | en_US |
dc.contributor.author | WOLTER, Anna Luisa Maria | en_US |
dc.contributor.author | RODRIGUEZ CASTILLO, Guillermo Andres | en_US |
dc.contributor.author | ISRAEL, Gian Luca | en_US |
dc.contributor.author | Esposito, P. | en_US |
dc.contributor.author | PAIANO, Simona | en_US |
dc.contributor.author | TRINCHIERI, Ginevra | en_US |
dc.contributor.author | Ochner, P. | en_US |
dc.date.accessioned | 2020-10-12T15:45:07Z | - |
dc.date.available | 2020-10-12T15:45:07Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27739 | - |
dc.description.abstract | NGC 925 ULX-1 and ULX-2 are two ultraluminous X-ray sources (ULXs) in the galaxy NGC 925, at a distance of 8.5 Mpc. For the first time, we analysed high quality, simultaneous XMM-Newton and NuSTAR data of both sources. Although at a first glance ULX-1 resembles an intermediate mass black hole candidate (IMBH) because of its high X-ray luminosity [(2-4) × 10<SUP>40</SUP> erg s<SUP>-1</SUP>] and its spectral/temporal features, a closer inspection shows that its properties are more similar to those of a typical super-Eddington accreting stellar black hole and we classify it as a `broadened disc' ULX. Based on the physical interpretation of this spectral state, we suggest that ULX-1 is seen at small inclination angles, possibly through the evacuated cone of a powerful wind originating in the accretion disc. The spectral classification of ULX-2 is less certain, but we disfavour an IMBH accreting at sub-Eddington rates as none of its spectral/temporal properties can be associated with either the soft or the hard state of Galactic accreting black hole binaries. | en_US |
dc.language.iso | eng | en_US |
dc.title | The two ultraluminous X-ray sources in the galaxy NGC 925 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/sty1766 | en_US |
dc.identifier.scopus | 2-s2.0-85051556994 | en_US |
dc.identifier.isi | 000441382300103 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/479/3/4271/5049028 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 479 | en_US |
dc.relation.issue | 3 | en_US |
dc.relation.firstpage | 4271 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 10 | en_US |
dc.description.international | no | en_US |
dc.contributor.country | ITA | 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 | 2018MNRAS.479.4271P | 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 | IASF Palermo | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | IASF Milano | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | IASF Palermo | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | IASF Palermo | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.orcid | 0000-0002-3869-2925 | - |
crisitem.author.orcid | 0000-0002-6516-1329 | - |
crisitem.author.orcid | 0000-0003-3259-7801 | - |
crisitem.author.orcid | 0000-0001-5840-9835 | - |
crisitem.author.orcid | 0000-0003-3952-7291 | - |
crisitem.author.orcid | 0000-0001-5480-6438 | - |
crisitem.author.orcid | 0000-0002-2239-3373 | - |
crisitem.author.orcid | 0000-0002-0227-502X | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
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