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An Asymmetric Relativistic Model for FRII Radio Sources

Published online by Cambridge University Press:  25 May 2016

T. G. Arshakian  and
M. S. Longair
T. G. Arshakian
Affiliation:
Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE
M. S. Longair
Affiliation:
Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE

Abstract

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An asymmetric relativistic model for FRII radio sources is described which takes account of both relativistic effects and intrinsic/environmental asymmetries to explain the observed structural asymmetry of their radio lobes. A key feature of the model is jet-sidedness, which can now be determined for about 80% of the FRII sources in the 3CRR complete sample. It is shown that a simple asymmetric relativistic model can account for a wide range of observational data, and that the relativistic and intrinsic asymmetry effects are of comparable importance. The mean translational speed of the lobes is . The results are in agreement with an orientation-based unified scheme in which the critical angle separating the radio galaxies from the radio quasars is about 50°.

Type
III. AGN Theory and Models
Information
Symposium - International Astronomical Union , Volume 194: Activity in Galaxies and Related Phenomena , 1999 , pp. 301 - 305
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

Alexander, P., Leahy, J. P., 1987, MNRAS, 225, 1 Google Scholar
Arshakian, T., Longair, M.S., 1999. MNRAS, (in preparation) Google Scholar
Banhatti, D.G., 1980, A&A, 84, 112 Google Scholar
Barthel, P.D., 1989, ApJ, 336, 606 Google Scholar
Best, P.N., Bailer, D.M., Longair, M.S., Riley, J.M., 1995, MNRAS, 275, 1171 CrossRefGoogle Scholar
Bridle, A.H., et al., 1994, AJ, 108, 766 Google Scholar
Hardcastle, M. J., et al., 1997, MNRAS, 288, 859 Google Scholar
Katgert-Meikelijn, J., Levi, C., Padrielli, L., 1980, A&AS, 40, 91 Google Scholar
Laing, R. A., Riley, J.M., Longair, M.S., 1983, MNRAS, 204, 151 CrossRefGoogle Scholar
Longair, M.S., Riley, J.M., 1979, MNRAS, 188, 625 Google Scholar
Lui, R., Pooley, G., Riley, J.M., 1992, MNRAS, 257, 545 Google Scholar
McCarthy, P.J., van Breguel, W.J.M., Kapahi, V.K., 1991, ApJ, 371, 478 Google Scholar
Ryle, M., Longair, M.S., 1967, MNRAS, 136, 123 Google Scholar
Saikia, D. J., 1984, MNRAS, 209, 525 Google Scholar
Scheuer, P.A.G., 1995, MNRAS, 277, 331 Google Scholar