Magnetic Fields in our Galaxy: How Much Do We Know?

I. Disk fields within a few kpc of the Sun
  • J. L. Han


The large scale magnetic fields of our Galaxy have been mostly revealed by rotationmeasures (RMs) of pulsars and extragalactic radio sources. In the disk of our Galaxy, the averagefield strength over a few kpc scale is about 1.8 µG, while the total field, including the random fieldson smaller scales, has a strength of about 5 µG. The local regular field, if it is part of the large scalefield of a bisymmetric form, has a pitch angle of about -8°. There are at least three, and perhapsfive, field reversals from the Norma arm to the outer skirt of our Galaxy.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Andreasyan, R.R. and Makarov, A.N.: 1989, Astrofiz. 31(2), 247.ADSGoogle Scholar
  2. Beck, R., Brandenburg, A., Moss, D., Shukurov, A. and Sokoloff, D.: 1996, Annu. Rev. Astron. Astrophys. 34, 155.ADSCrossRefGoogle Scholar
  3. Clegg, A.W., Cordes, J.M., Simonetti, J.H. and Kulkarni, S.R.: 1992, Astrophys. J. 386, 143.ADSCrossRefGoogle Scholar
  4. Hamilton, P.N. and Lyne, A.G.: 1987, Mon. Not. R. Astron. Soc. 224, 1073.ADSGoogle Scholar
  5. Han, J.L.: 2002, in Astrophysical Polarized Background, S. Cecchini, S. Cortiglioni, R. Sault and C. Sbarra (eds.), American Institute of Physics, in press.Google Scholar
  6. Han, J.L., Manchester, R.N., Berkhuijsen, E.M. and Beck, R.: 1997, Astron. Astrophys. 322, 98.ADSGoogle Scholar
  7. Han, J.L., Manchester, R.N. and Qiao, G.J.: 1999a, Mon. Not. R. Astron. Soc. 306, 371 (HMQ99).ADSCrossRefGoogle Scholar
  8. Han, J.L. and Qiao, G.J.: 1994, Astron. Astrophys. 288, 759 (HQ94).Google Scholar
  9. Heiles, C.: 1996a, Astrophys. J. 462, 316.ADSCrossRefGoogle Scholar
  10. Indrani, C. and Deshpande, A.A.: 1998, New Astron. 4, 33 (ID98).ADSGoogle Scholar
  11. Lyne, A.G. and Smith, F.G.: 1989, Mon. Not. R. Astron. Soc. 237, 533.ADSGoogle Scholar
  12. Manchester, R.N.: 1974, Astrophys. J. 188, 637.ADSCrossRefGoogle Scholar
  13. Mathewson, D.S. and Ford, Y.L.: 1970, Mem. R. Astron. Soc. 74, 139.ADSGoogle Scholar
  14. Ohno, H. and Shibata, S.: 1993, Mon. Not. R. Astron. Soc. 262, 953.ADSGoogle Scholar
  15. Rand, R.J, and Kulkarni, S.R.: 1989, Astrophys. J. 343, 760 (RK89).ADSCrossRefGoogle Scholar
  16. Rand, R.J. and Lyne, A.G.: 1994, Mon. Not. R. Astron. Soc. 268, 497.ADSGoogle Scholar
  17. Simard-Normandin, M. and Kronberg, P.P.: 1980, Astrophys. J. 242, 74 (SK80).ADSCrossRefGoogle Scholar
  18. Sofue, Y. and Fujimoto, M.: 1983, Astrophys. J. 265, 722 (SF83).ADSCrossRefGoogle Scholar
  19. Thomson, R.C. and Nelson, A.H.: 1980, Mon. Not. R. Astron. Soc. 191, 863 (TN80).ADSGoogle Scholar
  20. Vallée, J.P.: 1996, Astron. Astrophys. 308, 433.ADSGoogle Scholar
  21. Zweibel, E.G. and Heiles, C.: 1997, Nature 385, 131.ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2001

Authors and Affiliations

  • J. L. Han
    • 1
  1. 1.The Partner Group of MPIfRNational Astronomical Observatories of ChinaChao Yang District, BeijingChina

Personalised recommendations