Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/26485
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | PONTI, GABRIELE | en_US |
dc.contributor.author | Jin, C. | en_US |
dc.contributor.author | De Marco, B. | en_US |
dc.contributor.author | Rea, N. | en_US |
dc.contributor.author | Rau, A. | en_US |
dc.contributor.author | Haberl, F. | en_US |
dc.contributor.author | Coti Zelati, F. | en_US |
dc.contributor.author | Bozzo, E. | en_US |
dc.contributor.author | Ferrigno, C. | en_US |
dc.contributor.author | Bower, G. C. | en_US |
dc.contributor.author | Demorest, P. | en_US |
dc.date.accessioned | 2020-07-17T13:46:45Z | - |
dc.date.available | 2020-07-17T13:46:45Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26485 | - |
dc.description.abstract | We report on the identification of the new Galactic Centre (GC) transient Swift J174540.7-290015 as a likely low-mass X-ray binary located at only 16 arcsec from Sgr A<SUP>⋆</SUP>. This transient was detected on 2016 February 6, during the Swift GC monitoring, and it showed long-term spectral variations compatible with a hard- to soft-state transition. We observed the field with XMM-Newton on February 26 for 35 ks, detecting the source in the soft state, characterized by a low level of variability and a soft X-ray thermal spectrum with a high energy tail (detected by INTEGRAL up to ∼50 keV), typical of either accreting neutron stars or black holes. We observed: (I) a high column density of neutral absorbing material, suggesting that Swift J174540.7-290015 is located near or beyond the GC and; (II) a sub-Solar iron abundance, therefore we argue that iron is depleted into dust grains. The lack of detection of Fe K absorption lines, eclipses or dipping suggests that the accretion disc is observed at a low inclination angle. Radio (Very Large Array) observations did not detect any radio counterpart to Swift J174540.7-290015. No evidence for X-ray or radio periodicity is found. The location of the transient was observed also in the near-infrared (near-IR) with gamma-ray burst optical near-IR detector at MPG/European Southern Observatory La Silla 2.2 m telescope and VLT/NaCo pre- and post-outburst. Within the Chandra error region, we find multiple objects that display no significant variations. | en_US |
dc.language.iso | eng | en_US |
dc.title | Swift J174540.7-290015: a new accreting binary in the Galactic Centre | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stw1382 | en_US |
dc.identifier.scopus | 2-s2.0-84983770627 | en_US |
dc.identifier.isi | 000383481100031 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/461/3/2688/2608489 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 461 | en_US |
dc.relation.issue | 3 | en_US |
dc.relation.firstpage | 2688 | 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 | en_US |
dc.identifier.adsbibcode | 2016MNRAS.461.2688P | 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.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 | 0000-0003-0293-3608 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
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