New Pulsars from an Arecibo Drift Scan Search

Details New Pulsars from an Arecibo Drift Scan Search New Pulsars from an Arecibo Drift Scan Search

2000-08-02

arxiv.org/abs/astro-ph/0008054v1

Astronomy and Astrophysics

Astrophysics

21 pages, 4 figures, Accepted for Publication in ApJ

Scientific paper

10.1086/317841

We report the discovery of pulsars J0030+0451, J0711+0931, and J1313+0931 that were found in a search of 470 square degrees at 430 MHz using the 305m Arecibo telescope. The search has an estimated sensitivity for long period, low dispersion measure, low zenith angle, and high Galactic latitude pulsars of ~1 mJy, comparable to previous Arecibo searches. Spin and astrometric parameters for the three pulsars are presented along with polarimetry at 430 MHz. PSR J0030+0451, a nearby pulsar with a period of 4.8 ms, belongs to the less common category of isolated millisecond pulsars. We have measured significant polarization in PSR J0030+0451 over more than 50% of the period, and use these data for a detailed discussion of its magnetospheric geometry. Scintillation observations of PSR J0030+0451 provide an estimate of the plasma turbulence level along the line of sight through the local interstellar medium.

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