Measurement of scatter broadening for 27 pulsars at 327 MHz

Abstract

New measurements of scattering delay for 27 pulsars at 327 MHz are presented. These measurements significantly improve on the available set of measurements for pulsars with dispersion measures in the range 100 to 250 pc cm^-3. These measurements also sample an important section of the Galactic volume which should render better modelling of the electron density distribution. The dependence of the scatter broadening on the dispersion measure is discussed, and modelled based on the new data combined with similar, earlier, measurements.