Radio Pulsar Death Line Revisited: Is PSR J2144-3933 Anomalous?

Details Radio Pulsar Death Line Revisited: Is PSR J2144-3933 Anomalous? Radio Pulsar Death Line Revisited: Is PSR J2144-3933 Anomalous?

2000-01-19

arxiv.org/abs/astro-ph/0001341v2

Astrophys.J. 531 (2000) L135-L138

Astronomy and Astrophysics

Astrophysics

replaced to meet the final version published in ApJ, 531, L135. The main revision is the discussion about the pulsar polar cap

Scientific paper

10.1086/312542

We reinvestigate the radio pulsar ``death lines'' within the framework of two different types of polar cap acceleration models, i.e., the vacuum gap model and the space-charge-limited flow model, with either curvature radiation or inverse Compton scattering photons as the source of pairs. General relativistic frame-dragging is taken into account in both models. We find that the inverse Compton scattering induced space-charge-limited flow model can sustain strong pair production in some long-period pulsars, which allows the newly detected 8.5s pulsar PSR J2144-3933 to be radio loud, without assuming a special neutron star equation-of-state or ad hoc magnetic field configurations.

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