An Arecibo Drift-Scan Search for Rapidly Rotating Radio Pulsars

Details An Arecibo Drift-Scan Search for Rapidly Rotating Radio Pulsars An Arecibo Drift-Scan Search for Rapidly Rotating Radio Pulsars

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.9401l&link_type=abstract

American Astronomical Society, 200th AAS Meeting, #94.01; Bulletin of the American Astronomical Society, Vol. 34, p.955

Astronomy and Astrophysics

Astronomy

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Scientific paper

We report on new pulsar discoveries made as part of a drift-scan survey of the Arecibo sky carried out by two collaborations (STSci/NAIC and Berkeley/Cornell) during the latter stages of the Arecibo upgrade. The data acquisition system used is the Penn State Pulsar Machine (PSPM) - a fast-sampling filterbank spectrometer, nominally capable of detecting pulsars with sub-millisecond periods. Data processing is being carried out on a 180-processor Beowulf cluster at Jodrell Bank using standard FFT-based periodicity searches as well as analysis of the time series for individual dispersed pulses. The main results of the survey so far are summarized in this poster. To date, we have processed data covering 450 square degrees and detected 15 pulsars, 7 of which were not previously known. Among the new discoveries are two likely recycled pulsars with periods of 5.79 and 55.6 ms. One other previously known recycled pulsar has also been detected. The new discoveries are now being subject to a program of follow-up observations at Arecibo to determine spin, astrometric and any orbital parameters. DRL acknowledges support from the Royal Society. MAM is an NSF post-doctorial fellow. The Arecibo Observatory, a facility of the National Astronomy and Ionosphere Center, is operated by Cornell University under a cooperative agreement with the National Science Foundation. We wish to thank Alex Wolszczan for making the PSPM freely available for use at Arecibo.

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