Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28739
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Mata Sánchez, D. | en_US |
dc.contributor.author | Charles, P. A. | en_US |
dc.contributor.author | Armas Padilla, M. | en_US |
dc.contributor.author | Buckley, D. A. H. | en_US |
dc.contributor.author | ISRAEL, Gian Luca | en_US |
dc.contributor.author | Linares, M. | en_US |
dc.contributor.author | Muñoz-Darias, T. | en_US |
dc.date.accessioned | 2020-12-09T11:53:33Z | - |
dc.date.available | 2020-12-09T11:53:33Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28739 | - |
dc.description.abstract | The new recurrent X-ray transient MAXI J1957+032 has had four X-ray outbursts within 16 months, all very briefly detected (lasting <5 d). During the most recent event (2016 September/October), we obtained with the Southern African Large Telescope the first optical spectrum of the transient counterpart, showing the classic blue continuum of an X-ray irradiated disc in an LMXB and no other features. At high Galactic latitude below the plane (-13°) reddening is low but there is no quiescent counterpart visible on any of the existing sky surveys, nor any other known X-ray source in the region. Swift monitoring of three of the four events is presented, showing rapidly fading X-ray outbursts together with significant UVOT detections in the UV (W1,M2,W2), U and B bands. The optical properties are most like those of the short-period LMXBs, which, combined with the softening witnessed during the decay to quiescence would place the system at d < 13 kpc. The short duration and short recurrence time of the outbursts are reminiscent of the accreting millisecond X-ray pulsars, which exhibit peak luminosities of ∼ 1 per cent L<SUB>Edd</SUB>. Assuming this peak luminosity would place MAXI J1957+032 at a distance of d ∼ 5-6 kpc. | en_US |
dc.language.iso | eng | en_US |
dc.title | Swift and SALT observations of the multiple outbursts of MAXI J1957+032 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stx479 | en_US |
dc.identifier.scopus | 2-s2.0-85017226359 | en_US |
dc.identifier.isi | 000398419200041 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/468/1/564/3051681 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 468 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 564 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | GBR | en_US |
dc.contributor.country | ESP | en_US |
dc.contributor.country | ZAF | 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.468..564M | 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. Roma | - |
crisitem.author.orcid | 0000-0001-5480-6438 | - |
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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MAXIJ1957.pdf | PDF editoriale | 649.99 kB | Adobe PDF | View/Open |
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