Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/29937
Campo DC | Valore | Lingua |
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dc.contributor.author | SANNA, ALBERTO | en_US |
dc.contributor.author | Ferrigno, C. | en_US |
dc.contributor.author | Ray, P. S. | en_US |
dc.contributor.author | Ducci, L. | en_US |
dc.contributor.author | Jaisawal, G. K. | en_US |
dc.contributor.author | Enoto, T. | en_US |
dc.contributor.author | Bozzo, E. | en_US |
dc.contributor.author | Altamirano, D. | en_US |
dc.contributor.author | Di Salvo, T. | en_US |
dc.contributor.author | Strohmayer, T. E. | en_US |
dc.contributor.author | PAPITTO, ALESSANDRO | en_US |
dc.contributor.author | Riggio, A. | en_US |
dc.contributor.author | Burderi, L. | en_US |
dc.contributor.author | Bult, P. M. | en_US |
dc.contributor.author | Bogdanov, S. | en_US |
dc.contributor.author | Gambino, A. F. | en_US |
dc.contributor.author | MARINO, ALESSIO | en_US |
dc.contributor.author | Iaria, R. | en_US |
dc.contributor.author | Arzoumanian, Z. | en_US |
dc.contributor.author | Chakrabarty, D. | en_US |
dc.contributor.author | Gendreau, K. C. | en_US |
dc.contributor.author | Guillot, S. | en_US |
dc.contributor.author | Markwardt, C. | en_US |
dc.contributor.author | Wolff, M. T. | en_US |
dc.date.accessioned | 2021-01-21T19:15:31Z | - |
dc.date.available | 2021-01-21T19:15:31Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0004-6361 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/29937 | - |
dc.description.abstract | We report the discovery by the Nuclear Spectroscopic Telescope Array (NuSTAR) and the Neutron Star Interior Composition Explorer (NICER) of the accreting millisecond X-ray pulsar IGR J17591-2342. Coherent X-ray pulsations around 527.4 Hz (1.9 ms) with a clear Doppler modulation were detected. This implies an orbital period of ∼8.8 h and a projected semi-major axis of ∼1.23 lt-s. With the binary mass function, we estimate a minimum companion mass of 0.42 M☉, obtained assuming a neutron star mass of 1.4 M☉ and an inclination angle lower than 60°, as suggested by the absence of eclipses or dips in the light curve of the source. The broad-band energy spectrum, obtained by combining NuSTAR, swift and INTEGRAL observations, is dominated by Comptonisation of soft thermal seed photons with a temperature of ∼0.7 keV by electrons heated to 21 keV. We also detect black-body-like thermal direct emission that is compatible with an emission region of a few kilometers and a temperature compatible with the seed source of Comptonisation. A weak Gaussian line centred on the iron Kα complex can be interpreted as a signature of disc reflection. A similar spectrum characterises the NICER spectra, which was measured when the outburst faded. | en_US |
dc.language.iso | eng | en_US |
dc.title | NuSTAR and NICER reveal IGR J17591-2342 as a new accreting millisecond X-ray pulsar | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/201834160 | en_US |
dc.identifier.scopus | 2-s2.0-85055058916 | en_US |
dc.identifier.isi | 000445994700001 | en_US |
dc.identifier.url | https://www.aanda.org/articles/aa/abs/2018/09/aa34160-18/aa34160-18.html | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 617 | en_US |
dc.relation.firstpage | L8 | 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...617L...8S | 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.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.orcid | 0000-0001-6289-7413 | - |
crisitem.author.orcid | 0000-0001-5674-4664 | - |
crisitem.journal.journalissn | 0004-6361 | - |
crisitem.journal.ance | E016240 | - |
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