An Interference Removal Technique for Radio Pulsar Searches

Abstract

Searches for radio pulsars are becoming increasingly difficult because of a rise in impulsive man-made terrestrial radio-frequency interference. Here we present a new technique, zero-DM filtering, which can significantly reduce the effects of such signals in pulsar search data. The technique has already been applied to a small portion of the data from the Parkes multi-beam pulsar survey, resulting in the discovery of four new pulsars, so illustrating its efficacy.

Accepted for publication in Monthly Notices of the Royal Astronomical Society. 6 pages, 8 figures, and 1 table

References in corpus (5)

• A bright millisecond radio burst of extragalactic origin
• The Parkes Multibeam Pulsar Survey: I. Observing and Data Analysis Systems, Discovery and Timing of 100 Pulsars
• Transient radio bursts from rotating neutron stars
• The Parkes multibeam pulsar survey: IV. Discovery of 180 pulsars and parameters for 281 previously known pulsars
• PSR J1410-6132: A young, energetic pulsar associated with EGRET source 3EG J1410-6147

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