Pulsar NP 0532: Polarization of Strong Pulses at 430 MHz as seen with 300 kHz Bandwidth

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Abstract

THE polarization properties of strong pulses from NP 0532 have been measured by Graham, Lyne and Smith1, who used a 330 kHz bandwidth corresponding to a time resolution of about 2 ms; and by Heiles, Campbell and Rankin2, who used a 10 kHz bandwidth corresponding to a time resolution of 120 µs. The former authors measured large linear polarization; they did not know which pulse component was responsible for the strong pulses, but they suspected the precursor because of its high average linear polarization3. We measured systematic circular polarization in the strong main pulses, and proposed that the differences in results might be due to the difference in observing bandwidth.

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References

  1. 1

    Graham, D. A., Lyne, A. G., and Smith, F. G., Nature, 225, 526 (1970).

  2. 2

    Heiles, C., Campbell, D. B., and Rankin, J. M., Nature, 226, 529 (1970).

  3. 3

    Campbell, D. B., Heiles, C., and Rankin, J. M., Nature, 225, 527 (1970).

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RANKIN, J., HEILES, C. Pulsar NP 0532: Polarization of Strong Pulses at 430 MHz as seen with 300 kHz Bandwidth. Nature 227, 1330–1331 (1970) doi:10.1038/2271330a0

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