OBSERVATIONS OF 10 TAILED RADIO-SOURCES AT 10.6 GHZ

We have used the Effelsberg 100-m telescope to map ten tailed radio so urces at 10.6 GHz lambda2.8 cm). We find extended emission at the outs kirts of the tails, with degrees of linear polarization as high as the theoretically expected values in some cases. At the sources' heads we generally find low degrees of polarization, most likely as result of strong beam depolarization caused by the strong initial bending of the jets along with magnetic fields. The orientation of the magnetic fiel d is mostly along the tails in their outer reaches, and in some cases transverse closer to the central sources. We have detected some pronou nced asymmetries of the polarization between the two lateral halves of the tails, which is interpreted as an intrinsic difference in the deg ree of ordering of the magnetic field. The total radio spectra of the radio galaxies in this sample are found to show a high-frequency steep ening, consistent with aging of radiating electrons.