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Pulsar observations at decametric wavelengths using a swept-frequency dedisperser
Authors:A A Deshpande  V Radhakrishnan
Institution:(1) Raman Research Institute, 560 080 Bangalore, India
Abstract:In this paper, we describe pulsar observations at decametric wavelengths using the Gauribidanur Radio Telescope made subsequent to our earlier measurements (Deshpande & Radhakrishnan 1992). To improve the time-resolution in our measurements of pulse profiles, we have used the ‘swept-frequency dedispersion’ method with some modifications to suit its application at such low radio frequencies. We also present a new scheme that simplifies the calibration of the receiver gain characteristics. We present average profiles on four pulsars from these improved measurements at 34.5 MHz.
Keywords:Pulsars  average profiles  dispersion
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