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Observational Aspects of Galactic Magnetic Fields

Published online by Cambridge University Press:  14 August 2015

G. L. Verschuur
G. L. Verschuur*
Affiliation:
National Radio Astronomy Observatory∗, Green Bank, W.Va., U.S.A.

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I will review the impressive advances in the observations of the galactic magnetic field made since the time of van de Hulst's review at the 1966 Noordwijk Symposium (van de Hulst, 1967). Most of these observations are so recent that the consequences have not yet been worked out very well and are in need of discussion. Luckily the emphasis in the present Symposium, unlike that in many others, is on discussion. For this reason I will not hesitate to include in my review provocative speculations. I will base my discussion on Mathewson's (1968) elegant magnetic field model, consisting of a local field in the form of a sheared helix, superimposed on a large scale longitudinal field. I will include the criticism of this model by Gardner et al. (1969b). Mathewson has succeeded in accounting for such data as the distribution of background polarized radiation from the Galaxy, the distribution of rotation measures of extra-galactic radio sources and even the spurs and ridges in galactic continuum emission. There are critics who inherently distrust models that account for too many things at one time, but I feel that we should try to account for as many things as possible with the least number of models. Mathewson has succeeded in uniting much data and I will only add a few pieces to his model.

Type
Part I: Description and General Theory of the Interstellar Medium
Information
Symposium - International Astronomical Union , Volume 39: Interstellar Gas Dynamics , 1970 , pp. 150 - 167
Copyright
Copyright © Reidel 1970 

References

Appenzeller, I.: 1968, Astrophys. J. 151, 907.Google Scholar
Behr, A.: 1959, Veröff. Univ.-Sternw. Göttingen, No. 126.Google Scholar
Berge, G. L. and Seielstad, G. A.: 1969, Astrophys. J. 157, 35.Google Scholar
Bingham, R. G.: 1967, Monthly Notices Roy. Astron. Soc. 137, 157.Google Scholar
Bologna, J. M., McClain, E. F., Rose, W. K., and Sloanaker, R. M.: 1965, Astrophys. J. 142, 106.Google Scholar
Bologna, J. M., McClain, E. F., and Sloanaker, R. M.: 1969, Astrophys. J. 156, 815.Google Scholar
Bridle, A. H. and Venugopal, V. R.: 1969, Nature 224, 545.Google Scholar
Clark, B. G.: 1965, Astrophys. J. 142, 1398.Google Scholar
Clube, S. V. M.: 1968, Observatory 88, 243.Google Scholar
Davidson, K. and Terzian, Y.: 1969, Astron. J. 74, 849.CrossRefGoogle Scholar
Davies, R. D.: 1968, Nature 218, 435.CrossRefGoogle Scholar
Davies, R. D.: 1969, Nature 223, 355.Google Scholar
Davies, R. D., Booth, R. S., and Wilson, A. J.: 1968, Nature 220, 1207.Google Scholar
Ekers, R. R., Lequeux, J., Moffet, A. T., and Seielstad, G. A.: 1969, Astrophys. J. Lett. 156, L21.Google Scholar
Gardner, F. F. and Davies, R. D.: 1966, Australian J. Phys. 19, 129.Google Scholar
Gardner, F. F., Morris, D., and Whiteoak, J. B.: 1969a, Australian J. Phys. 22, 79.Google Scholar
Gardner, F. F., Morris, D., and Whiteoak, J. B.: 1969b, Australian J. Phys. 22, 813.Google Scholar
Gardner, F. F. and Whiteoak, J. B.: 1969, Australian J. Phys. 22, 107.Google Scholar
Gordon, C. P., Gordon, K. J., and Shalloway, A. M.: 1969, Nature 222, 129.Google Scholar
Hall, J. S.: 1958, Publ. U.S. Naval Observ., 2nd series, 17, No. VI.Google Scholar
Heiles, C.: 1968, Astrophys. J. 151, 919 (# 2 list).Google Scholar
Heiles, C.: 1969, Astrophys. J. 156, 493.CrossRefGoogle Scholar
Hiltner, W. A.: 1956, Astrophys. J. Suppl. 2, 389.Google Scholar
Hjellming, R. M., Gordon, C. P., and Gordon, K. J.: 1969, Astron. Astrophys. 2, 202.Google Scholar
Hulsbosch, A. N. M.: 1968, Bull. Astron. Inst. Netherl. 20, 33.Google Scholar
Jenkins, E. B., Morton, D. C., and Matilsky, T. A.: 1969, Astrophys. J. 158, 943.Google Scholar
Kerr, F. J.: 1969, Ann. Rev. Astron. Astrophys. 7, 39.Google Scholar
Krzeminski, W. and Serkowski, K.: 1967, Astrophys. J. 147, 988.Google Scholar
Mathewson, D. S.: 1968, Astrophys. J. Lett. 153, L47.CrossRefGoogle Scholar
Mathewson, D. S.: 1969, Proc. Astron. Soc. Australia 1, 209.Google Scholar
Mathewson, D. S. and Nicholls, D. C.: 1968, Astrophys. J. Lett. 154, L11.Google Scholar
Meaburn, J.: 1965, Nature 207, 179.Google Scholar
Morris, D. and Berge, G. L.: 1964, Astrophys. J. 139, 1388.Google Scholar
Radhakrishnan, V.: 1969, Proc. Astron. Soc. Australia 1, 6.Google Scholar
Rickard, J. J.: 1969, preprint.Google Scholar
Seymour, P. A. H.: 1969, Monthly Notices Roy. Astron. Soc. 142, 33.Google Scholar
Shajn, G. A.: 1955, Astron. Zh. 32, 381.Google Scholar
Shuter, W. L. H. and Verschuur, G. L.: 1964, Monthly Notices Roy. Astron. Soc. 127, 387.Google Scholar
Smith, F. G.: 1968a, Nature 220, 892.Google Scholar
Smith, F. G.: 1968b, Nature 218, 325.Google Scholar
Smith, G. P.: 1963, Bull. Astron. Inst. Netherl. 17, 203.Google Scholar
Sofue, Y., Fujimoto, M., and Kawabata, K.: 1969, Publ. Astron. Soc. Japan 20, 388.Google Scholar
Staelin, D. H. and Reifenstein, E. C.: 1969, Astrophys. J. Lett. submitted for publication.Google Scholar
Taylor, J. H.: 1969, Astrophys. Lett. 3, 205.Google Scholar
Van de Hulst, H. C.: 1967, Ann. Rev. Astron. Astrophys. 5, 179.Google Scholar
Verschuur, G. L.: 1968, Phys. Rev. Lett. 121, 775.Google Scholar
Verschuur, G. L.: 1969a, Astrophys. J. 156, 861.Google Scholar
Verschuur, G. L.: 1969b, Nature 223, 140.Google Scholar
Verschuur, G. L.: 1969c, Astrophys. J. Sept. 1970.Google Scholar
Verschuur, G. L.: 1969d, Astrophys. J. Lett. 155, L155.Google Scholar
Verschuur, G. L.: 1969e, Astron. Astrophys. 1, 473.Google Scholar
Verschuur, G. L.: 1969f, Astron. Astrophys. 3, 77.Google Scholar
Verschuur, G. L.: 1969g, in preparation.Google Scholar