Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-20T01:40:40.663Z Has data issue: false hasContentIssue false
  • English
  • Français

A Survey of Recent Magnetic Field Measurements in HI Features of the Galaxy

Published online by Cambridge University Press:  19 July 2016

Carl Heiles
Carl Heiles*
Affiliation:
University of California, Berkeley, California U.S.A.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

More than 300 measurements of magnetic field strengths in H I regions now exist. Interpretation of about 100 shows that magnetic pressure either is comparable with or dominates other pressures near at least some dark clouds and in at least some H I shells. There appears to be direct evidence for Alfvén waves, but this needs to be confirmed by additional examples. In many regions the field is highly uniform, but in other regions it varies considerably over 30 arcminutes or less. The field directions derived from Zeeman splitting and from Faraday rotation do not correlate well.

Type
2. The Magnetic Field Structure of the Milky Way: The Meeting of Observation and Theory
Information
Symposium - International Astronomical Union , Volume 140: Galactic and Intergalactic Magnetic Fields , 1990 , pp. 35 - 40
Copyright
Copyright © Kluwer 1990 

References

Heiles, C. 1987, in Interstellar Processes , ed. Hollenbach, D. J. and Thronson, H.A. Jr., Reidel Publishing Co.; and in Physical Processes in Interstellar Clouds (NATO ASI Series C, vol 210), ed. Morfill, G.E. and Scholer, M., Reidel Publishing Co. Google Scholar
Heiles, C. 1988, Ap. J. , 334, 321.CrossRefGoogle Scholar
Heiles, C. 1989, Ap. J. , 336, 808.CrossRefGoogle Scholar
Heiles, C. and Kulkarni, S. 1987, in Physical Processes in Interstellar Clouds (NATO ASI Series C, vol 210), ed. Morfill, G.E. and Scholer, M., Reidel Publishing Co. Google Scholar
Heiles, C. and Troland, T.H. 1982, Ap. J. , 260, L23.CrossRefGoogle Scholar
Kulkarni, S. and Heiles, C. 1987, in Interstellar Processes , ed. Hollenbach, D. J. and Thronson, H.A. Jr., Reidel Publishing Co.Google Scholar
Kulkarni, S. and Heiles, C. 1988, in Galactic and Extragalactic Radio Astronomy , ed. Verschuur, G.L. and Kellermann, K.I., Springer-Verlag Co.Google Scholar
Troland, T.H. and Heiles, C. 1982a, Ap. J. , 252, 179.CrossRefGoogle Scholar
Troland, T.H. and Heiles, C. 1982b, Ap. J. , 260, L19.CrossRefGoogle Scholar
Verschuur, G.L. 1969, Ap. J. , 156, 861.CrossRefGoogle Scholar
Verschuur, G.L. 1979, Fund. Cosmic Phys. , 5, 113.Google Scholar
Verschuur, G.L. 1989, Ap. J. , 339, 163.CrossRefGoogle Scholar