Abstract
view Abstract Citations (31) References (12) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Galactic Magnetic Fields: Cellular or Filamentary Structure? Michel, F. C. ; Yahil, A. Abstract We have examined the possibility that the galactic field is composed of cells or filaments elongated by plasma motions or by the differential rotation of the galactic disk. Such cells could result from special events, and each would then contain its own independent magnetic-field structure. Our analysis of available data indicates that there is a significant correlation between the signs of the observed rotation measure between different radio sources as a function of their angular separation out to angles of about 40 . The anticorrelation expected for a uniform field component is absent, indicating that any uniform component would have to be an order of magnitude weaker than the ambient fields. One or more localized field "patches" seem indicated near 100 = 80 , b" = 0 . We discuss these results in terms of a cellular field model. Cosmic-ray propagation would be sensitive to such structuring. Stars are also shown to be a potential source of very fine filamentary field (much less than a parsec in width) which would not be resolved in the rotation measure data, but which might account for the starlight polarization data. Subject headings: interstellar matter - magnetic fields - stellar winds Publication: The Astrophysical Journal Pub Date: February 1973 DOI: 10.1086/151914 Bibcode: 1973ApJ...179..771M full text sources ADS |
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
