We have conducted a survey of intermediate Galactic latitudes using the 13-beam 21-cm multibeam receiver of the Parkes 64-m radio telescope. The survey covered the region enclosed by 5°<|b|<15° and -100°<l<50° with 4702 processed pointings of 265s each, for a total of 14.5d of integration time. 13 2×96-channel filterbanks provided 288MHz of bandwidth at a centre frequency of 1374MHz, one-bit sampled every 125μs and incurring ~DM/13.4cm-3pc samples of dispersion smearing. The system was sensitive to slow and most millisecond pulsars in the region with flux densities greater than approximately 0.3-1.1mJy. Offline analysis on the 64-node Swinburne workstation cluster resulted in the detection of 170 pulsars of which 69 were new discoveries. Eight of the new pulsars, by virtue of their small spin periods and period derivatives, may be recycled and have been reported elsewhere. The slow pulsars discovered are typical of those already known in the volume searched, being of intermediate to old age. Several pulsars experience pulse nulling and two display very regular drifting subpulses. We discuss the new discoveries and provide timing parameters for the 48 slow pulsars for which we have a phase-connected solution.
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- September 2001
- METHODS: OBSERVATIONAL;
- PULSARS: GENERAL;
- 19 pages, 11 figures, accepted to MNRAS