UBV polarimetry of 361 A- and F-type stars in selected areas?;??

Abstract. We present simultaneous UBV linear polariza-tion measurements for 361 A- and F-type stars with ac-curate colour excess and distance determination. These stars are distributed in 35 Kapteyn’s Selected Areas, cov-ering the third and fourth quadrants of the galactic plane (jbj 30). The obtained polarization and the known colour excess are compared. An analysis of the polariza-tion distribution as a function of the stellar distance is also performed