Linking Jet Emission, X-Ray States, and Hard X-Ray Tails in the Neutron Star X-Ray Binary GX 17+2
We present the results of simultaneous radio (VLA) and X-ray (RXTE) observations of the Z-type neutron star X-ray binary GX 17+2. The aim is to assess the coupling between X-ray and radio properties throughout its three rapidly variable X-ray states and during the time-resolved transitions. These ob...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal Article |
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Institute of Physics Publishing, Inc.
2007
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| Online Access: | http://iopscience.iop.org/0004-637X/671/1/706/ http://hdl.handle.net/20.500.11937/13010 |
| _version_ | 1848748234360487936 |
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| author | Migliari, S. Miller-Jones, James Fender, R. Homan, J. Di Salvo, T. Rothschild, R. Rupen, M. Tomsick, J. Wijnands, R. van der Klis, M. |
| author_facet | Migliari, S. Miller-Jones, James Fender, R. Homan, J. Di Salvo, T. Rothschild, R. Rupen, M. Tomsick, J. Wijnands, R. van der Klis, M. |
| author_sort | Migliari, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We present the results of simultaneous radio (VLA) and X-ray (RXTE) observations of the Z-type neutron star X-ray binary GX 17+2. The aim is to assess the coupling between X-ray and radio properties throughout its three rapidly variable X-ray states and during the time-resolved transitions. These observations allow us, for the first time, to investigate quantitatively the possible relations between the radio emission and the presence of hard X-ray tails and the X-ray state of the source. The observations reveal (1) a coupling between the radio jet emission and the X-ray state of the source, that is, the position in the X-ray hardness-intensity diagram (HID); (2) a coupling between the presence of a hard X-ray tail and the position in the HID, qualitatively similar to that found for the radio emission; (3) an indication of a quantitative positive correlation between the radio flux density and the X-ray flux in the hard tail power-law component; (4) evidence for the formation of a radio jet associated with the flaring branch-to-normal branch X-ray state transition; and (5) that the radio flux density of the newly formed jet stabilizes when the normal-branch oscillation (NBO) in the X-ray power spectrum stabilizes its characteristic frequency, suggesting a possible relation between X-ray variability associated with the NBO and jet formation. We discuss our results in the context of jet models. |
| first_indexed | 2025-11-14T07:01:48Z |
| format | Journal Article |
| id | curtin-20.500.11937-13010 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:01:48Z |
| publishDate | 2007 |
| publisher | Institute of Physics Publishing, Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-130102017-02-28T01:34:22Z Linking Jet Emission, X-Ray States, and Hard X-Ray Tails in the Neutron Star X-Ray Binary GX 17+2 Migliari, S. Miller-Jones, James Fender, R. Homan, J. Di Salvo, T. Rothschild, R. Rupen, M. Tomsick, J. Wijnands, R. van der Klis, M. Accretion ISM: Jets and Outflows Radio Continuum: General stars: individual (GX 17+2) X-Rays: Binaries Accretion Disks We present the results of simultaneous radio (VLA) and X-ray (RXTE) observations of the Z-type neutron star X-ray binary GX 17+2. The aim is to assess the coupling between X-ray and radio properties throughout its three rapidly variable X-ray states and during the time-resolved transitions. These observations allow us, for the first time, to investigate quantitatively the possible relations between the radio emission and the presence of hard X-ray tails and the X-ray state of the source. The observations reveal (1) a coupling between the radio jet emission and the X-ray state of the source, that is, the position in the X-ray hardness-intensity diagram (HID); (2) a coupling between the presence of a hard X-ray tail and the position in the HID, qualitatively similar to that found for the radio emission; (3) an indication of a quantitative positive correlation between the radio flux density and the X-ray flux in the hard tail power-law component; (4) evidence for the formation of a radio jet associated with the flaring branch-to-normal branch X-ray state transition; and (5) that the radio flux density of the newly formed jet stabilizes when the normal-branch oscillation (NBO) in the X-ray power spectrum stabilizes its characteristic frequency, suggesting a possible relation between X-ray variability associated with the NBO and jet formation. We discuss our results in the context of jet models. 2007 Journal Article http://hdl.handle.net/20.500.11937/13010 http://iopscience.iop.org/0004-637X/671/1/706/ Institute of Physics Publishing, Inc. restricted |
| spellingShingle | Accretion ISM: Jets and Outflows Radio Continuum: General stars: individual (GX 17+2) X-Rays: Binaries Accretion Disks Migliari, S. Miller-Jones, James Fender, R. Homan, J. Di Salvo, T. Rothschild, R. Rupen, M. Tomsick, J. Wijnands, R. van der Klis, M. Linking Jet Emission, X-Ray States, and Hard X-Ray Tails in the Neutron Star X-Ray Binary GX 17+2 |
| title | Linking Jet Emission, X-Ray States, and Hard X-Ray Tails in the Neutron Star X-Ray Binary GX 17+2 |
| title_full | Linking Jet Emission, X-Ray States, and Hard X-Ray Tails in the Neutron Star X-Ray Binary GX 17+2 |
| title_fullStr | Linking Jet Emission, X-Ray States, and Hard X-Ray Tails in the Neutron Star X-Ray Binary GX 17+2 |
| title_full_unstemmed | Linking Jet Emission, X-Ray States, and Hard X-Ray Tails in the Neutron Star X-Ray Binary GX 17+2 |
| title_short | Linking Jet Emission, X-Ray States, and Hard X-Ray Tails in the Neutron Star X-Ray Binary GX 17+2 |
| title_sort | linking jet emission, x-ray states, and hard x-ray tails in the neutron star x-ray binary gx 17+2 |
| topic | Accretion ISM: Jets and Outflows Radio Continuum: General stars: individual (GX 17+2) X-Rays: Binaries Accretion Disks |
| url | http://iopscience.iop.org/0004-637X/671/1/706/ http://hdl.handle.net/20.500.11937/13010 |