Pulsar Binary Birthrates with Spin-Opening Angle Correlations

Understand

Empirical birthrate estimates for pulsar binaries depend on the fraction of sky subtended by the pulsar beam: the pulsar beaming fraction.

• This fraction depends on both the pulsar's opening angle and the misalignment angle between its spin and magnetic axes.
• Previous estimates use the average value for only two pulsars, i.e.
• PSRs B1913+16 and B1534+12.