Disc-jet coupling in low-luminosity accreting neutron stars
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 t...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Journal Article |
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Oxford University Press
2017
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| Online Access: | http://purl.org/au-research/grants/arc/FT140101082 http://hdl.handle.net/20.500.11937/54333 |
| _version_ | 1848759345635917824 |
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| author | Tudor, V. Miller-Jones, James Patruno, A. D'Angelo, C. Jonker, P. Russell, D. Russell, T. Bernardini, F. Lewis, F. Deller, A. Hessels, J. Migliari, S. Plotkin, Richard Soria, Roberto Wijnands, R. |
| author_facet | Tudor, V. Miller-Jones, James Patruno, A. D'Angelo, C. Jonker, P. Russell, D. Russell, T. Bernardini, F. Lewis, F. Deller, A. Hessels, J. Migliari, S. Plotkin, Richard Soria, Roberto Wijnands, R. |
| author_sort | Tudor, V. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T09:58:25Z |
| format | Journal Article |
| id | curtin-20.500.11937-54333 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:58:25Z |
| publishDate | 2017 |
| publisher | Oxford University Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-543332022-11-28T04:13:10Z Disc-jet coupling in low-luminosity accreting neutron stars Tudor, V. Miller-Jones, James Patruno, A. D'Angelo, C. Jonker, P. Russell, D. Russell, T. Bernardini, F. Lewis, F. Deller, A. Hessels, J. Migliari, S. Plotkin, Richard Soria, Roberto Wijnands, R. 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. 2017 Journal Article http://hdl.handle.net/20.500.11937/54333 10.1093/mnras/stx1168 http://purl.org/au-research/grants/arc/FT140101082 Oxford University Press fulltext |
| spellingShingle | Tudor, V. Miller-Jones, James Patruno, A. D'Angelo, C. Jonker, P. Russell, D. Russell, T. Bernardini, F. Lewis, F. Deller, A. Hessels, J. Migliari, S. Plotkin, Richard Soria, Roberto Wijnands, R. Disc-jet coupling in low-luminosity accreting neutron stars |
| title | Disc-jet coupling in low-luminosity accreting neutron stars |
| title_full | Disc-jet coupling in low-luminosity accreting neutron stars |
| title_fullStr | Disc-jet coupling in low-luminosity accreting neutron stars |
| title_full_unstemmed | Disc-jet coupling in low-luminosity accreting neutron stars |
| title_short | Disc-jet coupling in low-luminosity accreting neutron stars |
| title_sort | disc-jet coupling in low-luminosity accreting neutron stars |
| url | http://purl.org/au-research/grants/arc/FT140101082 http://hdl.handle.net/20.500.11937/54333 |