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[72.08] A search for millisecond pulsars at high galactic latitude

B. Jacoby (Caltech), M. Bailes, S. Ord (Swinburne University), S. Kulkarni, S. Anderson (Caltech)

We are conducting a search for radio pulsars using the Parkes 64~m telescope, covering the galactic latitude range 15^\circ < | b | < 25^\circ from l=260^\circ to l=50^\circ. Each pointing is observed for 265~s with the 13-beam multibeam system at a frequency of 1374~MHz. The signal from each beam is processed by a 2 \times 96 channel filterbank sampled every 125~\mus, with a bandwidth of 288~MHz. These observing parameters afford rapid sky coverage and good sensitivity to pulsars with periods as short as ~1~ms, whose existence would constrain the neutron star equation of state. Data are analyzed offline using the workstation cluster at the Swinburne Centre for Astrophysics and Supercomputing. Analysis of ~2200 square degrees of the survey has been completed, yielding twenty new pulsars including four binary recycled pulsars. Three of these objects have great potential for ultra high precision timing experiments, and one has an unusual massive white dwarf companion. We present the current status of survey observations and analysis as well as follow-up observations of the newly discovered pulsars.

The author(s) of this abstract have provided an email address for comments about the abstract: baj@astro.caltech.edu

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Bulletin of the American Astronomical Society, 34
© 2002. The American Astronomical Soceity.