Name E_mail_Address Scientific_Session Contribution_type Title Authors_affiliations Abstract Andreasyan Ruben Rafik randrasy@bao.sci.am EAS Symp.6:Dynamics of Galaxies and Galactic Nuclei. oral 3-DIMENSIONAL DISTRIBUTION OF GALACTIC MAGNETIC FIRLD Andreasyan, R.R.; Balayan, S.K.; Movsisyan, V.H. We study the distribution of magnetic field in the plane of Galaxy, using rotation measure (RM) data of pulsars. We bring the two color (depending from the sign of RM) maps of Galactic magnetic field. As dense is the color, as large is the value of magnetic field. The calculating program gives the possibility to receive the maps for different layers of Galactic plane, chosen by z coordinate. Our results are mainly in agreement with the known models: the reversals of magnetic field directions from one spiral arm to another. As an example of new important result we find that a very strong and homogeneous magnetic field of Sagittarius arm, directed to the observer, appears only in the Northern hemisphere.