Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28281
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hubrig, S. | en_US |
dc.contributor.author | SIDOLI, Lara | en_US |
dc.contributor.author | Postnov, K. | en_US |
dc.contributor.author | Schöller, M. | en_US |
dc.contributor.author | Kholtygin, A. F. | en_US |
dc.contributor.author | Järvinen, S. P. | en_US |
dc.contributor.author | Steinbrunner, P. | en_US |
dc.date.accessioned | 2020-11-12T11:02:48Z | - |
dc.date.available | 2020-11-12T11:02:48Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28281 | - |
dc.description.abstract | A significant fraction of high-mass X-ray binaries are supergiant fast X-ray transients (SFXTs). The prime model for the physics governing their X-ray behaviour suggests that the winds of donor OB supergiants are magnetized. To investigate if magnetic fields are indeed present in the optical counterparts of such systems, we acquired low-resolution spectropolarimetric observations of the two optically brightest SFXTs, IGR J08408-4503 and IGR J11215-5952, with the ESO FORS 2 instrument during two different observing runs. No field detection at a significance level of 3σ was achieved for IGR J08408-4503. For IGR J11215-5952, we obtain 3.2σ and 3.8σ detections (⟨B<SUB>z</SUB>⟩<SUB>hydr</SUB> = -978 ± 308 G and ⟨B<SUB>z</SUB>⟩<SUB>hydr</SUB> = 416 ± 110 G) on two different nights in 2016. These results indicate that the model involving the interaction of a magnetized stellar wind with the neutron star magnetosphere can indeed be considered to characterize the behaviour of SFXTs. We detected long-term spectral variability in IGR J11215-5952, whereas for IGR J08408-4503, we find an indication of the presence of short-term variability on a time-scale of minutes. <P /> | en_US |
dc.language.iso | eng | en_US |
dc.title | A search for the presence of magnetic fields in the two supergiant fast X-ray transients, IGR J08408-4503 and IGR J11215-5952 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnrasl/slx187 | en_US |
dc.identifier.scopus | 2-s2.0-85042194092 | en_US |
dc.identifier.isi | 000425491400006 | en_US |
dc.identifier.url | https://academic.oup.com/mnrasl/article-abstract/474/1/L27/4644842?redirectedFrom=fulltext | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 474 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | L27 | en_US |
dc.relation.lastpage | L31 | en_US |
dc.relation.numberofpages | 5 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 7 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | DEU | en_US |
dc.contributor.country | RUS | 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.474L..27H | 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 | IASF Milano | - |
crisitem.author.orcid | 0000-0001-9705-2883 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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hubrig_sidoli2018.pdf | PDF editoriale | 1.03 MB | Adobe PDF | View/Open |
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