Pulsar observations at 34.5 MHz using the Gauribidanur Telescope. I

Abstract

This paper reports measurements of pulse profiles at 34.5 MHz of eight pulsars using the Gauribidanur Radio Telescope. None of the eight pulsars show any significant interpulse emission at this frequency, which conflicts with an earlier claim from 25 MHz observations. With the exception of one pulsar (PSR 0943 + 10), all the observed pulsars show turnovers at frequencies above 35 MHz in their spectra. Also reported are attempts to study the short and long term variations in the pulsar signals at this low frequency.