The nature of jets: evidence from circular polarization observations
We review recent observations of circularly polarized radiation from AGN made with the VLBA and with the ATCA. We also discuss briefly the detections of the Galactic sources Sgr A* and SS 433. The origin of the circular polarization is still an open question in most cases, and we discuss four possib...
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| Format: | Conference item |
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2002
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| _version_ | 1826274092733431808 |
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| author | Wardle, J Homan, D |
| author_facet | Wardle, J Homan, D |
| author_sort | Wardle, J |
| collection | OXFORD |
| description | We review recent observations of circularly polarized radiation from AGN made with the VLBA and with the ATCA. We also discuss briefly the detections of the Galactic sources Sgr A* and SS 433. The origin of the circular polarization is still an open question in most cases, and we discuss four possible mechanisms. Detectable circular polarization is a common property of quasars, but not of radio galaxies, and is always associated with the compact core. There is growing evidence that the sign of the circular polarization stays the same over at least 20 - 30 years, suggesting that it is a fundamental property of the jet. |
| first_indexed | 2024-03-06T22:38:12Z |
| format | Conference item |
| id | oxford-uuid:5aa5c8cb-5e9c-405f-9349-b3c232e53976 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T22:38:12Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:5aa5c8cb-5e9c-405f-9349-b3c232e539762022-03-26T17:17:01ZThe nature of jets: evidence from circular polarization observationsConference itemhttp://purl.org/coar/resource_type/c_5794uuid:5aa5c8cb-5e9c-405f-9349-b3c232e53976Symplectic Elements at Oxford2002Wardle, JHoman, DWe review recent observations of circularly polarized radiation from AGN made with the VLBA and with the ATCA. We also discuss briefly the detections of the Galactic sources Sgr A* and SS 433. The origin of the circular polarization is still an open question in most cases, and we discuss four possible mechanisms. Detectable circular polarization is a common property of quasars, but not of radio galaxies, and is always associated with the compact core. There is growing evidence that the sign of the circular polarization stays the same over at least 20 - 30 years, suggesting that it is a fundamental property of the jet. |
| spellingShingle | Wardle, J Homan, D The nature of jets: evidence from circular polarization observations |
| title | The nature of jets: evidence from circular polarization observations |
| title_full | The nature of jets: evidence from circular polarization observations |
| title_fullStr | The nature of jets: evidence from circular polarization observations |
| title_full_unstemmed | The nature of jets: evidence from circular polarization observations |
| title_short | The nature of jets: evidence from circular polarization observations |
| title_sort | nature of jets evidence from circular polarization observations |
| work_keys_str_mv | AT wardlej thenatureofjetsevidencefromcircularpolarizationobservations AT homand thenatureofjetsevidencefromcircularpolarizationobservations AT wardlej natureofjetsevidencefromcircularpolarizationobservations AT homand natureofjetsevidencefromcircularpolarizationobservations |