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SXP 15.6 - an accreting pulsar close to spin equilibrium?

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cris.lastimport.scopus2024-02-12T19:46:37Z
dc.abstract.enSXP 15.6 is a recently established Be star X-ray binary system in the Small Magellanic Cloud (SMC). Like many such systems, the variable X-ray emission is driven by the underlying behaviour of the mass donor Be star. It is shown here that the neutron star in this system is exceptionally close to spin equilibrium averaged over several years, with the angular momentum gain from mass transfer being almost exactly balanced by radiative losses. This makes SXP 15.6 exceptional compared to all other known members of its class in the SMC, all of whom exhibit much higher spin period changes. In this paper, we report on X-ray observations of the brightest known outburst from this system. These observations are supported by contemporaneous optical and radio observations, as well as several years of historical data.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorMonageng, I. M.
dc.contributor.authorVreeswijk, Paul
dc.contributor.authorBloemen, Steven
dc.contributor.authorGroot, Paul
dc.contributor.authorKörding, Elmar
dc.contributor.authorEvans, P. A.
dc.contributor.authorPoole, Rudolf Le
dc.contributor.authorCoe, M. J.
dc.contributor.authorKennea, J. A.
dc.contributor.authorBuckley, D. A. H.
dc.contributor.authorPieterse, Danielle
dc.contributor.authorWoudt, Patrick
dc.contributor.authorUdalski, Andrzej
dc.contributor.authorKlein-Wolt, Marc
dc.contributor.authorMcBride, Vanessa
dc.date.accessioned2024-01-26T09:25:40Z
dc.date.available2024-01-26T09:25:40Z
dc.date.copyright2022-04-27
dc.date.issued2022
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financePublikacja bezkosztowa
dc.description.number4
dc.description.versionORIGINAL_AUTHOR
dc.description.volume513
dc.identifier.doi10.1093/MNRAS/STAC1208
dc.identifier.issn0035-8711
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/121232
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2022MNRAS.513.5567C
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.relation.pages5567-5574
dc.rightsOther
dc.sciencecloudnosend
dc.titleSXP 15.6 - an accreting pulsar close to spin equilibrium?
dc.typeJournalArticle
dspace.entity.typePublication