Baryons in the relativistic jets of the stellar-mass black-hole candidate 4U 1630-47
Accreting black holes are known to power relativistic jets, both in stellar-mass binary systems and at the centres of galaxies. The power carried away by the jets, and, hence, the feedback they provide to their surroundings, depends strongly on their composition. Jets containing a baryonic component...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Nature Publishing Group
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/40663 |
| _version_ | 1848755931591999488 |
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| author | Trigo, M. Miller-Jones, James Migliari, S. Broderick, J. Tzioumis, T. |
| author_facet | Trigo, M. Miller-Jones, James Migliari, S. Broderick, J. Tzioumis, T. |
| author_sort | Trigo, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Accreting black holes are known to power relativistic jets, both in stellar-mass binary systems and at the centres of galaxies. The power carried away by the jets, and, hence, the feedback they provide to their surroundings, depends strongly on their composition. Jets containing a baryonic component should carry significantly more energy than electron–positron jets. Energetic considerations1, 2 and circular-polarization measurements3 have provided conflicting circumstantial evidence for the presence or absence of baryons in jets, and the only system in which they have been unequivocally detected is the peculiar X-ray binary SS 433 (refs 4, 5). Here we report the detection of Doppler-shifted X-ray emission lines from a more typical black-hole candidate X-ray binary, 4U 1630-47, coincident with the reappearance of radio emission from the jets of the source. We argue that these lines arise from baryonic matter in a jet travelling at approximately two-thirds the speed of light, thereby establishing the presence of baryons in the jet. Such baryonic jets are more likely to be powered by the accretion disk6 than by the spin of the black hole7, and if the baryons can be accelerated to relativistic speeds, the jets should be strong sources of γ-rays and neutrino emission. |
| first_indexed | 2025-11-14T09:04:09Z |
| format | Journal Article |
| id | curtin-20.500.11937-40663 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:04:09Z |
| publishDate | 2013 |
| publisher | Nature Publishing Group |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-406632017-09-13T13:41:44Z Baryons in the relativistic jets of the stellar-mass black-hole candidate 4U 1630-47 Trigo, M. Miller-Jones, James Migliari, S. Broderick, J. Tzioumis, T. High-energy astrophysics Accreting black holes are known to power relativistic jets, both in stellar-mass binary systems and at the centres of galaxies. The power carried away by the jets, and, hence, the feedback they provide to their surroundings, depends strongly on their composition. Jets containing a baryonic component should carry significantly more energy than electron–positron jets. Energetic considerations1, 2 and circular-polarization measurements3 have provided conflicting circumstantial evidence for the presence or absence of baryons in jets, and the only system in which they have been unequivocally detected is the peculiar X-ray binary SS 433 (refs 4, 5). Here we report the detection of Doppler-shifted X-ray emission lines from a more typical black-hole candidate X-ray binary, 4U 1630-47, coincident with the reappearance of radio emission from the jets of the source. We argue that these lines arise from baryonic matter in a jet travelling at approximately two-thirds the speed of light, thereby establishing the presence of baryons in the jet. Such baryonic jets are more likely to be powered by the accretion disk6 than by the spin of the black hole7, and if the baryons can be accelerated to relativistic speeds, the jets should be strong sources of γ-rays and neutrino emission. 2013 Journal Article http://hdl.handle.net/20.500.11937/40663 10.1038/nature12672 Nature Publishing Group fulltext |
| spellingShingle | High-energy astrophysics Trigo, M. Miller-Jones, James Migliari, S. Broderick, J. Tzioumis, T. Baryons in the relativistic jets of the stellar-mass black-hole candidate 4U 1630-47 |
| title | Baryons in the relativistic jets of the stellar-mass black-hole candidate 4U 1630-47 |
| title_full | Baryons in the relativistic jets of the stellar-mass black-hole candidate 4U 1630-47 |
| title_fullStr | Baryons in the relativistic jets of the stellar-mass black-hole candidate 4U 1630-47 |
| title_full_unstemmed | Baryons in the relativistic jets of the stellar-mass black-hole candidate 4U 1630-47 |
| title_short | Baryons in the relativistic jets of the stellar-mass black-hole candidate 4U 1630-47 |
| title_sort | baryons in the relativistic jets of the stellar-mass black-hole candidate 4u 1630-47 |
| topic | High-energy astrophysics |
| url | http://hdl.handle.net/20.500.11937/40663 |