Discovery of Five New Pulsars in Archival Data

Abstract

Reprocessing of the Parkes Multibeam Pulsar Survey has resulted in the discovery of five previously unknown pulsars and several as-yet-unconfirmed candidates. PSR J0922-52 has a period of 9.68 ms and a DM of 122.4 pc cm^-3. PSR J1147-66 has a period of 3.72 ms and a DM of 133.8 pc cm^-3. PSR J1227-6208 has a period of 34.53 ms, a DM of 362.6 pc cm^-3, is in a 6.7 day binary orbit, and was independently detected in an ongoing high-resolution Parkes survey by Thornton et al. and also in independent processing by Einstein@Home volunteers. PSR J1546-59 has a period of 7.80 ms and a DM of 168.3 pc cm^-3. PSR J1725-3853 is an isolated 4.79-ms pulsar with a DM of 158.2 pc cm^-3. These pulsars were likely missed in earlier processing efforts due to their high DMs and short periods and the large number of candidates that needed to be looked through. These discoveries suggest that further pulsars are awaiting discovery in the multibeam survey data.

12 pages, 2 figures, 2 tables, accepted to ApJ

References in corpus (3)

• The Parkes multibeam pulsar survey: VI. Discovery and timing of 142 pulsars and a Galactic population analysis
• Discovery of 28 pulsars using new techniques for sorting pulsar candidates
• An Interference Removal Technique for Radio Pulsar Searches

Cited by in corpus (14)

• The pulsar spectral index distribution
• The MeerTime Pulsar Timing Array -- A Census of Emission Properties and Timing Potential
• Einstein@Home Discovery of 24 Pulsars in the Parkes Multi-beam Pulsar Survey
• Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar
• Eight New Radio Pulsars in the Large Magellanic Cloud
• The Parkes multibeam pulsar survey: VII. Timing of four millisecond pulsars and the underlying spin period distribution of the Galactic millisecond pulsar population
• A Study of Single Pulses in the Parkes Multibeam Pulsar Survey
• The High Time Resolution Universe Survey - XI. Discovery of five recycled pulsars and the optical detectability of survey white dwarf companions
• Discovery of 37 new pulsars through GPU-accelerated reprocessing of archival data of the Parkes Multibeam Pulsar Survey
• Arecibo Pulsar Survey Using ALFA. III. Precursor Survey and Population Synthesis
• Searching for Millisecond Pulsars: Surveys, Techniques and Prospects
• Applying saliency-map analysis in searches for pulsars and fast radio bursts
• The dynamics of Galactic centre pulsars: constraining pulsar distances and intrinsic spin-down
• Timing observations of three Galactic millisecond pulsars