Abstract
Westerbork Synthesis Radio Telescope maps of faint extended emission associated with several superluminal radio sources are presented. In order to avoid exceptionally large sizes for the superluminal sources, their dominant, long-term axes must be at least 20–30° from the line of sight. This is a considerably larger angle than that demanded by the relativistic beaming interpretation of the superluminal motion in their compact cores, and implies that a wobble or precession of their ejection axes has taken place. Superluminality may thus be a temporary phenomenon.
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References
Kellermann, K. I. & Pauliny-Toth, I. I. K. Ann. Rev. Astr. Astrophys. 19, 373–410 (1981).
Cohen, M. H. & Unwin, S. C. in Extragalactic Radio Sources (eds Heeschen, D. S. & Wade, C. M.) 345–354 (Reidel, Dordrecht, 1982).
Phillips, R. & Mutel, R. Astrophys. J. 257, L19–22 (1982).
Walker, R. C. et al. Astrophys. J. 257, 56–62 (1982).
Pearson, T. J. et al. Nature 290, 365–368 (1981).
Readhead, A. C. S. et al. Preprint (Owens Valley Radio Observatory, Caltech, 1982).
Blandford, R. D., McKee, C. F. & Rees, M. J. Nature 267, 211–216 (1977).
Marscher, A. P. & Scott, J. S. Pub. astr. Soc. Pacif. 92, 127–133 (1980).
Scheuer, P. A. G. & Readhead, A. C. S. Nature 277, 182–185 (1979).
Blandford, R. G. & Konigl, A. Astrophys. J. 232, 34–48 (1979).
Readhead, A. C. S., Cohen, M. H., Pearson, T. J. & Wilkinson, P. N. Nature 276, 768–771 (1978).
Browne, I. W. A. et al. Nature 299, 788–793 (1982).
Perley, R. A. Astr. J. 87, 859–880 (1982).
Conway, R. G., Davis, R. J., Foley, A. R. & Ray, T. P. Nature 294, 540–542 (1981).
Noordam, J. E. & de Bruyn, A. G. Nature 299, 597–600 (1982).
Baars, J. W. M., Genzel, R., Pauliny-Toth, I. I. K. & Witzel, A. Astr. Astrophys. 61, 99–106 (1977).
Marscher, A. P. & Broderick, J. J. Astrophys. J. 249, 406–414 (1981).
Marscher, A. P. & Broderick, J. J. Astrophys. J. 255, L11–15 (1982).
Balick, B., Heckman, T. M. & Crane, P. C. Astrophys. J. 254, 483–488 (1982).
Arp, H. C. Proc. ESO/ESA Workshop SP-162, 53–61 (1981).
Reich, W. et al. Astrophys. J. 236, L61–65 (1980).
Perley, R. A., Fomalont, E. B. & Johnston, K. J. Astrophys. J. 255, L93–97 (1982).
Hooley, A., Longair, M. S. & Riley, J. M. Mon. Not. R. astr. Soc. 182, 127–145 (1978).
Wilkinson, P. N. in Extragalactic Radio Sources (eds Heeschen, D. S. & Wade, C. M.) 149–156 (Reidel, Dordrecht, 1982).
Rees, M. J. in Origin of Cosmic Rays (eds Setti, G., Spada, G. & Wolfendale, A. W.) 139–164 (Reidel, Dordrecht, 1981).
Miley, G. K. Proc. NATO Advanced Study Institute on the Physics of Non-thermal Radio Sources, Urbino (ed. Setti, G.) 1–26 (Reidel, Dordrecht, 1976).
Linfield, R. Astrophys. J. 250, 464–468 (1981).
Cohen, M. H. et al. Preprint (Owens Valley Radio Observatory, Caltech, 1982).
Orr, M. J. L. & Browne, I. W. A. Mon. Not. R. astr. Soc. 200, 1067–1080 (1982).
Readhead, A. C. S. in Objects of High Redshift (eds Abell, G. O. & Peebles, P. J. E.) 165–176 (Reidel, Dordrecht, 1980).
Hine, R. G. & Scheuer, P. A. G. Mon. Not. R. astr. Soc. 193, 285–293 (1980).
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Schilizzi, R., de Bruyn, A. Large-scale radio structures of superluminal sources. Nature 303, 26–31 (1983). https://doi.org/10.1038/303026a0
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DOI: https://doi.org/10.1038/303026a0
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