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The Two Component Magnetic Field of the Galaxy

Published online by Cambridge University Press:  19 July 2016

R.R. Andreassian  and
A.N. Makarov
R.R. Andreassian
Affiliation:
1. Byurakan Astrophysical Observatory, 378433 Armenia, USSR
A.N. Makarov
Affiliation:
1. Byurakan Astrophysical Observatory, 378433 Armenia, USSR 2. Buryat Pedagogical Institute, 670000 Ulan-Ude, Buryatia, USSR

Extract

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The present paper is devoted to a study of the magnetic field configuration of our Galaxy based on Faraday rotation measures (RM) of 185 pulsars and 802 extragalactic radio sources. RM data of pulsars located near the plane of the Galaxy are used for the study of magnetic fields in neighbouring spiral arms. For the distribution of spiral arms the well-known model of Georgelin and Georgelin (1976) is used. The calculations show (for details see Andreassian and Makarov, 1987, 1989) that in the Perseus spiral arm and the local Orion arm the magnetic fields have approximately the same directions (lo;bo) ≈ (80°;0°), while in the Sagittarius-Carina arm the magnetic field has an opposite direction.

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. 54
Copyright
Copyright © Kluwer 1990 

References

Andreassian, R.R. and Makarov, A.N. (1987) Astrofizika 28, 419.Google Scholar
Andreassian, R.R. and Makarov, A.N. (1989) Astrofizika 30, 170.Google Scholar
Georgelin, J.M. and Georgelin, J.P. (1976) Astron. Astrophys. 49, 57.Google Scholar