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Circular Polarisation in AGN

Published online by Cambridge University Press:  05 March 2013

Jean-Pierre Macquart*
Affiliation:
School of Physics, University of Sydney, NSW 2006, Australia; jpm@physics.usyd.edu.au
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Abstract

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We discuss the constraints that recent observations place on circular polarisation in AGN. In many sources the circular polarisation is variable on short timescales, indicating that it originates in compact regions of the sources. The best prospects for gleaning further information about circular polarisation are high resolution VLBI and scintillation ‘imaging’ which probe source structure on milliarcsecond and microarcsecond scales respectively.

Type
Research Article
Copyright
Copyright © Astronomical Society of Australia 2002

References

Benford, G. 1984, ApJ, 282, 154 Google Scholar
Benford, G. 1992, ApJ, 391, L59 CrossRefGoogle Scholar
Blandford, R. D., & Königl, A. 1979, ApJ, 232, 34 Google Scholar
Bower, G. C., Falcke, H., & Backer, D. C. 1999, ApJ, 523, L29 Google Scholar
Fender, R., Rayner, D., Norris, R., Sault, R. J., & Pooley, G. 2000, ApJ, 530, L29 Google Scholar
Gabuzda, D. C., Pushkarev, A. B., & Cawthorne, A. W. 2000, MNRAS, 319, 1109 CrossRefGoogle Scholar
Homan, D. C., & Wardle, J. F. C. 1999, AJ, 118, 1942 Google Scholar
Homan, D. C., Attridge, J. M., & Wardle, J. F. C. 2001, ApJ, 556, 113 Google Scholar
Jones, T. W., & O'Dell, S. L. 1977, ApJ, 215, 236 Google Scholar
Kennett, M. P., & Melrose, D. B. 1998, PASA, 15, 211 Google Scholar
Komesaroff, M. M., Roberts, J. A., Milne, D. K., Rayner, P. T., & Cooke, D. J. 1984, MNRAS, 208, 409 Google Scholar
Legg, M. P. C., & Westfold, K. C. 1968, ApJ, 154, 99 CrossRefGoogle Scholar
Macquart, J.-P., & Melrose, D. B. 2000a, Phys. Rev. E, 62, 4177 Google Scholar
Macquart, J.-P., & Melrose, D. B. 2000b, ApJ, 545, 798 Google Scholar
Macquart, J.-P., Kedziora-Chudczer, L., Rayner, D. P., & Jauncey, D. L. 2000, ApJ, 538, 623 CrossRefGoogle Scholar
Manchester, R. N., Taylor, J. H., & Huguenin, G. C. 1975, ApJ, 196, 83 Google Scholar
Melrose, D. B. 1971, Ap&SS, 12, 172 Google Scholar
Melrose, D. B. 1991, Ann. Rev. Astron. Astrophys., 29, 31 Google Scholar
Pacholczyk, A. G. 1973, MNRAS, 163, 29P Google Scholar
Rayner, D. P., Norris, R. P., & Sault, R. J. 2000, MNRAS, 319, 484 Google Scholar
Ruszkowski, M. & Begelman, M. C. 2002, ApJ, submitted (astro-ph/0112090)Google Scholar
Saikia, D. J., & Salter, C. J. 1988, Ann. Rev. Astron. Astrophys., 26, 93 Google Scholar
Sault, R. J., & Macquart, J.-P. 1999, ApJ, 526, 85L Google Scholar
Sazonov, V. N. 1969, Zh. Eksper Teor. Fiz., 56, 1074 Google Scholar
Weiler, K. W., & de Pater, I. 1983, ApJ Supp., 52, 293 Google Scholar
Windsor, R. A., & Kellogg, P. J. 1974, ApJ, 190, 167 Google Scholar