Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/30265
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Coti Zelati, F. | en_US |
dc.contributor.author | Rea, N. | en_US |
dc.contributor.author | Turolla, R. | en_US |
dc.contributor.author | Pons, J. A. | en_US |
dc.contributor.author | PAPITTO, ALESSANDRO | en_US |
dc.contributor.author | Esposito, P. | en_US |
dc.contributor.author | ISRAEL, Gian Luca | en_US |
dc.contributor.author | CAMPANA, Sergio | en_US |
dc.contributor.author | Zane, S. | en_US |
dc.contributor.author | Tiengo, A. | en_US |
dc.contributor.author | MIGNANI, Roberto | en_US |
dc.contributor.author | MEREGHETTI, Sandro | en_US |
dc.contributor.author | Baganoff, F. K. | en_US |
dc.contributor.author | Haggard, D. | en_US |
dc.contributor.author | PONTI, GABRIELE | en_US |
dc.contributor.author | Torres, D. F. | en_US |
dc.contributor.author | Borghese, A. | en_US |
dc.contributor.author | Elfritz, J. | en_US |
dc.date.accessioned | 2021-02-09T16:48:26Z | - |
dc.date.available | 2021-02-09T16:48:26Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30265 | - |
dc.description.abstract | We report on 3.5 yr of Chandra monitoring of the Galactic Centre magnetar SGR J1745-2900 since its outburst onset in 2013 April. The magnetar spin-down has shown at least two episodes of period derivative increases so far, and it has slowed down regularly in the past year or so. We observed a slightly increasing trend in the time evolution of the pulsed fraction, up to ∼55 per cent in the most recent observations. SGR J1745-2900 has not reached the quiescent level yet, and so far the overall outburst evolution can be interpreted in terms of a cooling hot region on the star surface. We discuss possible scenarios, showing in particular how the presence of a shrinking hotspot in this source is hardly reconcilable with internal crustal cooling and favours the untwisting bundle model for this outburst. Moreover, we also show how the emission from a single uniform hotspot is incompatible with the observed pulsed fraction evolution for any pair of viewing angles, suggesting an anisotropic emission pattern. | en_US |
dc.language.iso | eng | en_US |
dc.title | Chandra monitoring of the Galactic Centre magnetar SGR J1745-2900 during the initial 3.5 years of outburst decay | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stx1700 | en_US |
dc.identifier.scopus | 2-s2.0-85038870711 | en_US |
dc.identifier.isi | 000409022700034 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/471/2/1819/3930866 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 471 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 1819 | en_US |
dc.relation.lastpage | 1829 | 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 | 2017MNRAS.471.1819C | en_US |
dc.relation.fund | H2020 | en_US |
dc.relation.project | TMSP (Mass accretion and ejection in transitional millisecond pulsars) | 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 | 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.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | IASF Milano | - |
crisitem.author.dept | IASF Milano | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.orcid | 0000-0001-6289-7413 | - |
crisitem.author.orcid | 0000-0001-5480-6438 | - |
crisitem.author.orcid | 0000-0001-6278-1576 | - |
crisitem.author.orcid | 0000-0002-8685-583x | - |
crisitem.author.orcid | 0000-0003-3259-7801 | - |
crisitem.author.orcid | 0000-0003-0293-3608 | - |
crisitem.project.grantno | 660657 | - |
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 | |
---|---|---|---|---|
2017-CotiZelati-stx1700.pdf | Pdf editoriale | 858.69 kB | Adobe PDF | View/Open |
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