Scattering of the Low Frequency Pulsar Radiation

We report the results of the measurements and analysis of the pulse broadening due to interstellar scattering on 43 pulsars at 102 MHz. This is the largest uniform sample of direct measurements of pulsar scatteringτ_sc, which make it feasible to analyze the dependence of this value on other pulsar parameters. The measured dependence of τ_scon dispersion measure τ_sc (DM)=40(DM/100)^2.1 is close to theoretically expected relation τ_sc (DM)∝ DM². A frequency dependence of the scattering pulse broadening is weaker than commonly accepted τ_sc ∝ ν^-4.4. This revised version was published online in July 2006 with corrections to the Cover Date.