Abstract
Recent observations of the 10-GHz continuum1 have indicated that there is a pair of lobes having ridges of intensity extending from the galactic centre region in a direction perpendicular to the galactic plane. This observation has attracted considerable attention as it is clearly an indication of dynamic processes occurring at the centre of our Galaxy that are similar to those occurring in the nuclei of radio galaxies, though different in scale and in strength2. Here we interpret these lobes as being due to a mag-netodynamic acceleration mechanism in which the production and relaxation of the magnetic twist induced by the rotation of the contracting gas disk play a part. The plasma is accelerated in a conical cylinder with a helical velocity field, reproducing the observed feature of radio lobes.
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References
Sofue, Y. & Handa, T. Nature 310, 568–569 (1984).
Sofue, Y. Publs astr. Soc. Japan (submitted).
Yusef-Zadeh, F., Morris, M. & Chance, D. Nature 310, 557–561 (1984).
Liszt, H. S. Astrophys. J. (submitted).
Inoue, M., Takahashi, T., Tabara, H., Kato, T. & Tsuboi, M. Publs astr. Soc. Japan 36, 633–638 (1984).
Piddington, J. H. Mon. Not. R. astr. Soc. 148, 131–147 (1970).
Ozernoy, L. M. & Somov, B. V. Astrophys. Space, Sci. 11, 264–283 (1971).
Blandford, R. D. & Rees, M. J. Mon. Not. R. astr. Soc. 169, 395–415 (1974).
Konigl, A. Astrophys. J. 261, 115–134 (1982).
Ferrari, A. & Pacholczyk, A. G. (eds) Astrophysical Jets (Reidel, Dordrecht, 1983).
Begelman, M. C., Blandford, R. D. & Rees, M. J. Rev. mod. Phys. 56, 255–351 (1984).
Blandford, R. D. & Payne, D. G. Mon. Not. R. astr. Soc. 199, 883–903 (1981).
Draine, B. T. Astrophys. J. 270, 519–536 (1983).
Pudritz, R. E. & Norman, C. A. Astrophys. J. 274, 677–697 (1983).
Uchida, Y. & Shibata, K. in The Origin of Non-Radiative Energy/ Momentum in Hot Stars (ed. Underbill, A.) 169 (NASA Printing Office, 1985); in Unstable Current Systems and Plasma Instabilities in Astrophysics (ed. Kundu, M.) 287 (Reidel, Dordrecht, 1985).
Mezger, P. G. & Pauls, T. in Large Scale Characteristics of Galaxy (ed. Burton, W. B.) 357 (Reidel, Dordrecht, 1979).
Liszt, H. S. & Burton, W. B. in Large Scale Characteristics of Galaxy (ed. Burton, W. B.) 343 (Reidel, Dordrecht, 1979).
Shibata, K. & Uchida, Y. Publs astr. Soc. Japan (submitted).
Vrba, F. J., Strom, S. E. & Strom, K. M. Astr. J. 81, 958–969 (1976).
Nakano, T. Publs astr. Soc. Japan 28, 355–369 (1976).
Paris, R. B. thesis, Univ. Manchester (1972).
Mouschovias, T. Astrophys. J. 228, 159–162 (1979).
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Uchida, Y., Shibata, K. & Sofue, Y. Origin of the galactic Centre lobes. Nature 317, 699–701 (1985). https://doi.org/10.1038/317699a0
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DOI: https://doi.org/10.1038/317699a0
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