The radio/X-ray correlation in Swift J1753.5-0127
Great effort has gone into trying to explain the two observed radio/X-ray correlation tracks seen in the low/hard state of black hole X-ray binaries in recent years. The original, "standard" correlation of the form LR ∝ [...], where b = 0.7 ± 0.1, is paired with a separate, lower correlati...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Journal Article |
| Published: |
Wiley - V C H Verlag GmbH & Co. KGaA
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/44062 |
| _version_ | 1848756889913917440 |
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| author | Kolehmainen, M. Fender, R. Jonker, P. Miller-Jones, James Homan, J. Anderson, G. Staley, T. Rumsey, C. Titterington, D. Broderick, J. Sivakoff, G. Deller, A. |
| author_facet | Kolehmainen, M. Fender, R. Jonker, P. Miller-Jones, James Homan, J. Anderson, G. Staley, T. Rumsey, C. Titterington, D. Broderick, J. Sivakoff, G. Deller, A. |
| author_sort | Kolehmainen, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Great effort has gone into trying to explain the two observed radio/X-ray correlation tracks seen in the low/hard state of black hole X-ray binaries in recent years. The original, "standard" correlation of the form LR ∝ [...], where b = 0.7 ± 0.1, is paired with a separate, lower correlation track with a steeper slope of ~ 1-1.4, at least at high luminosities. These outlier sources seem to show fainter radio emission than expected for a given X-ray luminosity, thus acquiring the term "radio-quiet". While most sources seem to maintain their intrinsic correlation slopes over decades in luminosity, a growing sample of sources have recently been reported to move from one correlation to the other. We present preliminary results from a coordinated radio/X-ray monitoring campaign of the radio-quiet black hole binary Swift J1753.5-0127, spanning nearly two years in time. Our observations add lower-luminosity coverage to an existing sample of observations, and we observe the radio-quiet track to proceed horizontally towards the standard correlation as the X-ray luminosity slowly starts to decrease. The source stays on the transition track for ~ 60 days, during which its X-ray luminosity is observed to drop by more than an order of magnitude while its radio luminosity stays constant. Time-averaged X-ray energy spectra show very little change during this phase, leaving no obvious parameters to explain the observed transition behaviour. |
| first_indexed | 2025-11-14T09:19:23Z |
| format | Journal Article |
| id | curtin-20.500.11937-44062 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:19:23Z |
| publishDate | 2016 |
| publisher | Wiley - V C H Verlag GmbH & Co. KGaA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-440622017-09-13T14:02:53Z The radio/X-ray correlation in Swift J1753.5-0127 Kolehmainen, M. Fender, R. Jonker, P. Miller-Jones, James Homan, J. Anderson, G. Staley, T. Rumsey, C. Titterington, D. Broderick, J. Sivakoff, G. Deller, A. Great effort has gone into trying to explain the two observed radio/X-ray correlation tracks seen in the low/hard state of black hole X-ray binaries in recent years. The original, "standard" correlation of the form LR ∝ [...], where b = 0.7 ± 0.1, is paired with a separate, lower correlation track with a steeper slope of ~ 1-1.4, at least at high luminosities. These outlier sources seem to show fainter radio emission than expected for a given X-ray luminosity, thus acquiring the term "radio-quiet". While most sources seem to maintain their intrinsic correlation slopes over decades in luminosity, a growing sample of sources have recently been reported to move from one correlation to the other. We present preliminary results from a coordinated radio/X-ray monitoring campaign of the radio-quiet black hole binary Swift J1753.5-0127, spanning nearly two years in time. Our observations add lower-luminosity coverage to an existing sample of observations, and we observe the radio-quiet track to proceed horizontally towards the standard correlation as the X-ray luminosity slowly starts to decrease. The source stays on the transition track for ~ 60 days, during which its X-ray luminosity is observed to drop by more than an order of magnitude while its radio luminosity stays constant. Time-averaged X-ray energy spectra show very little change during this phase, leaving no obvious parameters to explain the observed transition behaviour. 2016 Journal Article http://hdl.handle.net/20.500.11937/44062 10.1002/asna.201612334 Wiley - V C H Verlag GmbH & Co. KGaA restricted |
| spellingShingle | Kolehmainen, M. Fender, R. Jonker, P. Miller-Jones, James Homan, J. Anderson, G. Staley, T. Rumsey, C. Titterington, D. Broderick, J. Sivakoff, G. Deller, A. The radio/X-ray correlation in Swift J1753.5-0127 |
| title | The radio/X-ray correlation in Swift J1753.5-0127 |
| title_full | The radio/X-ray correlation in Swift J1753.5-0127 |
| title_fullStr | The radio/X-ray correlation in Swift J1753.5-0127 |
| title_full_unstemmed | The radio/X-ray correlation in Swift J1753.5-0127 |
| title_short | The radio/X-ray correlation in Swift J1753.5-0127 |
| title_sort | radio/x-ray correlation in swift j1753.5-0127 |
| url | http://hdl.handle.net/20.500.11937/44062 |