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dc.contributor.authorTudor, V.
dc.contributor.authorMiller-Jones, James
dc.contributor.authorPatruno, A.
dc.contributor.authorD'Angelo, C.
dc.contributor.authorJonker, P.
dc.contributor.authorRussell, D.
dc.contributor.authorRussell, T.
dc.contributor.authorBernardini, F.
dc.contributor.authorLewis, F.
dc.contributor.authorDeller, A.
dc.contributor.authorHessels, J.
dc.contributor.authorMigliari, S.
dc.contributor.authorPlotkin, Richard
dc.contributor.authorSoria, Roberto
dc.contributor.authorWijnands, R.
dc.date.accessioned2017-07-27T05:20:37Z
dc.date.available2017-07-27T05:20:37Z
dc.date.created2017-07-26T11:11:21Z
dc.date.issued2017
dc.identifier.citationTudor, V. and Miller-Jones, J. and Patruno, A. and D'Angelo, C. and Jonker, P. and Russell, D. and Russell, T. et al. 2017. Disc-jet coupling in low-luminosity accreting neutron stars. Monthly Notices of the Royal Astronomical Society. 470 (1): pp. 324-339.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/54333
dc.identifier.doi10.1093/mnras/stx1168
dc.description.abstract

In outburst, neutron star X-ray binaries produce less powerful jets than black holes at a given X-ray luminosity. This has made them more difficult to study as they fade towards quiescence. To explore whether neutron stars power jets at low accretion rates (L X ? 10 36 erg s -1 ), we investigate the radio and X-ray properties of three accreting millisecond X-ray pulsars (IGR J17511-3057, SAX J1808.4-3658 and IGR J00291+5934) during their outbursts in 2015, and of the non-pulsing neutron starCenX-4 in quiescence (2015) and in outburst (1979). We did not detect the radio counterpart of IGR J17511-3057 in outburst or of Cen X-4 in quiescence, but did detect IGR J00291+5934 and SAX J1808.4-3658, showing that at least some neutron stars launch jets at low accretion rates. While the radio and X-ray emission in IGR J00291+5934 seem to be tightly correlated, the relationship in SAX J1808.4-3658 is more complicated.We find that SAX J1808.4-3658 produces jets during the reflaring tail, and we explore a toy model to ascertain whether the radio emission could be attributed to the onset of a strong propeller. The lack of a universal radio/X-ray correlation, with different behaviours in different neutron star systems (with various radio/X-ray correlations; some being radio faint and others not), points at distinct disc-jet interactions in individual sources, while always being fainter in the radio band than black holes at the same X-ray luminosity.

dc.publisherOxford University Press
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/FT140101082
dc.titleDisc-jet coupling in low-luminosity accreting neutron stars
dc.typeJournal Article
dcterms.source.volume470
dcterms.source.number1
dcterms.source.startPage324
dcterms.source.endPage339
dcterms.source.issn0035-8711
dcterms.source.titleMonthly Notices of the Royal Astronomical Society
curtin.note

This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

curtin.departmentDepartment of Physics and Astronomy
curtin.accessStatusOpen access


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