POLARIZATION PROPERTIES OF WEAK AND STRONG PULSAR PULSES

Observations of the four pulsars PSR 0823+26, PSR 1706-16, PSR 1929+10 , and PSR 2021+51 were obtained at 1.710 MHz using the Effelsberg 100- m radio telescope in single-pulse detection mode with various time res olutions. The polarization properties of the pulsars are investigated. The maximum total intensity I-max and rms deviation sigma = root[x(i) (2)] - [x(i)](2) were determined for each individual pulse, where x(i) is the total noise intensity measured off the pulse. The ratio q = I- max/sigma is calculated, and individual radio pulses grouped according to their q values. Mean profiles for the total intensity, linearly po larized signal, and circularly polarized signal, as well as the run of the polarization position angle, were constructed for selected groups . The width of the mean profiles for the total intensity and linear po larization decrease with increasing q. In addition, the run of the pol arization position angle changes with q. Each pulsar also has individu al properties that depend on q.