Discovery of 28 pulsars using new techniques for sorting pulsar candidates

2009/01/22 by M. J. Keith, Ralph P. Eatough, R. P. Eatough +7 · 6 citations
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Binary number #Binary pulsar #Millisecond pulsar #Physics #Pulsar #Pulsar planet #Pulsars and Gravitational Waves Research #Radio Astronomy Observations and Technology #Supernova #Supernova remnant #X-ray pulsar #astro-ph.SR

paper · pdf · doi:10.1111/j.1365-2966.2009.14543.x

To be published in Monthly Notices of the Royal Astronomical Society. 11 pages, 9 figures

arxiv created 2009/01/22 · openalex publication_date 2009/04/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Modern pulsar surveys produce many millions of candidate pulsars, far more than can be individually inspected. Traditional methods for filtering these candidates, based upon the signal-to-noise ratio of the detection, cannot easily distinguish between interference signals and pulsars. We have developed a new method of scoring candidates using a series of heuristics which test for pulsar-like properties of the signal. This significantly increases the sensitivity to weak pulsars and pulsars with periods close to interference signals. By applying this and other techniques for ranking candidates from a previous processing of the Parkes Multi-beam Pulsar Survey, 28 previously unknown pulsars have been discovered. These include an eccentric binary system and a young pulsar which is spatially coincident with a known supernova remnant.

Citations

• The NRAO VLA Sky Survey
• The Parkes Multibeam Pulsar Survey - V. Finding binary and millisecond pulsars

Cited by

• Probing fundamental physics with pulsars
• MOLECULAR ENVIRONMENT AND AN X-RAY SPECTROSCOPY OF SUPERNOVA REMNANT KESTEVEN 78
• A Study on Classification in Imbalanced and Partially-Labelled Data Streams
• Timing observations of rotating radio transients
• Timing Solution and Single-pulse Properties for Eight Rotating Radio Transients
• A method for pulsar searching: combining a two-dimensional autocorrelation profile map and a deep convolutional neural network

Related

• Pulsar Searches - Tricks of the Trade
• The Parkes Multibeam Pulsar Survey
• Pushchino multibeams pulsar search. First results
• A Sensitive Targeted Search Campaign at Parkes to Find Young Radio Pulsars at 20 cm
• The High Time Resolution Universe Pulsar Survey-XIX. A coherent GPU accelerated reprocessing and the discovery of 71 pulsars in the Southern Galactic plane