Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/29938
DC Field | Value | Language |
---|---|---|
dc.contributor.author | SANNA, ALBERTO | en_US |
dc.contributor.author | Bozzo, E. | en_US |
dc.contributor.author | PAPITTO, ALESSANDRO | en_US |
dc.contributor.author | Riggio, A. | en_US |
dc.contributor.author | Ferrigno, C. | en_US |
dc.contributor.author | Di Salvo, T. | en_US |
dc.contributor.author | Iaria, R. | en_US |
dc.contributor.author | Mazzola, S.M. | en_US |
dc.contributor.author | D'AMICO, NICOLO' | en_US |
dc.contributor.author | Burderi, L. | en_US |
dc.date.accessioned | 2021-01-21T19:33:39Z | - |
dc.date.available | 2021-01-21T19:33:39Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0004-6361 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/29938 | - |
dc.description.abstract | We report the detection of X-ray pulsations at 2.1 ms from the known X-ray burster IGR J17379-3747 using XMM-Newton. The coherent signal shows a clear Doppler modulation from which we estimate an orbital period of 1.9 h and a projected semi-major axis of 8 lt-ms. Taking into account the lack of eclipses (inclination angle of <75°) and assuming a neutron star mass of 1.4 M☉, we have estimated a minimum companion star of 0.06 M☉. Considerations on the probability distribution of the binary inclination angle make the hypothesis of a main-sequence companion star less likely. On the other hand, the close correspondence with the orbital parameters of the accreting millisecond pulsar SAX J1808.4-3658 suggests the presence of a bloated brown dwarf. The energy spectrum of the source is well described by a soft disk black-body component (kT 0.45 keV) plus a Comptonisation spectrum with photon index 1.9. No sign of emission lines or reflection components are significantly detected. Finally, combining the source ephemerides estimated from the observed outbursts, we obtained a first constraint on the long-term orbital evolution of the order of Ṗ_orb = (-2.5 ± 2.3) × 10^-12 s s^-1. | en_US |
dc.language.iso | eng | en_US |
dc.title | XMM-Newton detection of the 2.1 ms coherent pulsations from IGR J17379-3747 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/201833205 | en_US |
dc.identifier.scopus | 2-s2.0-85062298044 | en_US |
dc.identifier.isi | 000442744100001 | en_US |
dc.identifier.url | https://www.aanda.org/articles/aa/abs/2018/08/aa33205-18/aa33205-18.html | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 616 | en_US |
dc.relation.firstpage | L17 | 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 | ASTRONOMY & ASTROPHYSICS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018A&A...616L..17S | 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::PE9_10 High energy and particle astronomy – X-rays, cosmic rays, gamma rays, neutrinos | 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.fulltext | With Fulltext | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
crisitem.journal.journalissn | 0004-6361 | - |
crisitem.journal.ance | E016240 | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.orcid | 0000-0001-6289-7413 | - |
crisitem.project.grantno | 660657 | - |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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2018-Sanna-aa33205-18.pdf | PDF editoriale | 487.37 kB | Adobe PDF | View/Open |
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