Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/27511
DC Field | Value | Language |
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dc.contributor.author | Iaria, R. | en_US |
dc.contributor.author | Gambino, A. F. | en_US |
dc.contributor.author | Di Salvo, T. | en_US |
dc.contributor.author | Burderi, L. | en_US |
dc.contributor.author | Matranga, M. | en_US |
dc.contributor.author | Riggio, A. | en_US |
dc.contributor.author | SANNA, ALBERTO | en_US |
dc.contributor.author | Scarano, F. | en_US |
dc.contributor.author | D'AI', ANTONINO | en_US |
dc.date.accessioned | 2020-09-29T08:41:34Z | - |
dc.date.available | 2020-09-29T08:41:34Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27511 | - |
dc.description.abstract | MXB 1659-298 is a transient neutron-star low-mass X-ray binary system that shows eclipses with a periodicity of 7.1 h. MXB 1659-298 went to outburst in 2015 August, after 14 years of quiescence. We investigate the orbital properties of this source with a baseline of 40 years, obtained by combining the eight eclipse arrival times present in the literature with 51 eclipse arrival times collected during the last two outbursts. A quadratic ephemeris does not fit the delays associated with the eclipse arrival times and the addition of a sinusoidal term with a period of 2.31 ± 0.02 yr is required. We infer a binary orbital period of P = 7.1161099(3) h and an orbital period derivative of \dot{P}=-8.5(1.2) × 10^{-12} s s<SUP>-1</SUP>. We show that the large orbital period derivative can be explained with a highly non-conservative mass-transfer scenario, in which more than 98 per cent of the mass provided by the companion star leaves the binary system. We predict an orbital period derivative value of \dot{P}=-6(3) × 10^{-12} s s<SUP>-1</SUP> and constrain the companion-star mass between 0.3 and 1.2 M<SUB>☉</SUB>. Assuming that the companion star is in thermal equilibrium, the periodic modulation can be due to either a gravitational quadrupole coupling arising from variations of the oblateness of the companion star or the presence of a third body of mass M<SUB>3</SUB> > 21 Jovian masses. | en_US |
dc.language.iso | eng | en_US |
dc.title | A possible solution of the puzzling variation of the orbital period of MXB 1659-298 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stx2529 | en_US |
dc.identifier.scopus | 2-s2.0-85046008161 | en_US |
dc.identifier.isi | 000423809400047 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/473/3/3490/4628110 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 473 | en_US |
dc.relation.issue | 3 | en_US |
dc.relation.firstpage | 3490 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 9 | en_US |
dc.description.international | no | en_US |
dc.contributor.country | ITA | 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.473.3490I | 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.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
crisitem.author.dept | IASF Palermo | - |
crisitem.author.orcid | 0000-0002-5042-1036 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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stx2529.pdf | Pdf editoriale | 696.61 kB | Adobe PDF | View/Open |
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