Why the distance of PSR J0218+4232 does not challenge pulsar emission theories

Verbiest J, Lorimer DR (2014)
Monthly Notices of the Royal Astronomical Society 444(2): 1859-1861.

Journal Article | Published | English

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Abstract
Recent very long baseline interferometry (VLBI) measurements of the astrometric parameters of the millisecond pulsar J0218+4232 by Du et al. have suggested that this pulsar is as distant as 6.3 kpc. At such a large distance, the large gamma-ray flux observed from this pulsar would make it the most luminous gamma-ray pulsar known. This luminosity would exceed what can be explained by the outer gap and slot-gap pulsar emission models, potentially placing important and otherwise elusive constraints on the pulsar emission mechanism. We show that the VLBI parallax measurement is dominated by the Lutz-Kelker bias. When this bias is corrected for, the most likely distance for this pulsar is 3.15(-0.60)(+0.85) kpc. This revised distance places the luminosity of PSR J0218+4232 into a range where it does not challenge any of the standard theories of the pulsar emission mechanism.
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Verbiest J, Lorimer DR. Why the distance of PSR J0218+4232 does not challenge pulsar emission theories. Monthly Notices of the Royal Astronomical Society. 2014;444(2):1859-1861.
Verbiest, J., & Lorimer, D. R. (2014). Why the distance of PSR J0218+4232 does not challenge pulsar emission theories. Monthly Notices of the Royal Astronomical Society, 444(2), 1859-1861.
Verbiest, J., and Lorimer, D. R. (2014). Why the distance of PSR J0218+4232 does not challenge pulsar emission theories. Monthly Notices of the Royal Astronomical Society 444, 1859-1861.
Verbiest, J., & Lorimer, D.R., 2014. Why the distance of PSR J0218+4232 does not challenge pulsar emission theories. Monthly Notices of the Royal Astronomical Society, 444(2), p 1859-1861.
J. Verbiest and D.R. Lorimer, “Why the distance of PSR J0218+4232 does not challenge pulsar emission theories”, Monthly Notices of the Royal Astronomical Society, vol. 444, 2014, pp. 1859-1861.
Verbiest, J., Lorimer, D.R.: Why the distance of PSR J0218+4232 does not challenge pulsar emission theories. Monthly Notices of the Royal Astronomical Society. 444, 1859-1861 (2014).
Verbiest, Joris, and Lorimer, D. R. “Why the distance of PSR J0218+4232 does not challenge pulsar emission theories”. Monthly Notices of the Royal Astronomical Society 444.2 (2014): 1859-1861.
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