Orthogonal pulsars as a key test for pulsar evolution

Abstract

At present, there is no direct information about the evolution of inclination angle $\chi$ between magnetic and rotational axes in radio pulsars. As to theoretical models of pulsar evolution, they predict both the alignment, i.e. evolution of inclination angle $\chi$ to $0^{\circ }$, and its counter-alignment, i.e. evolution to $90^{\circ }$. In this paper, we demonstrate that the statistics of interpulse pulsars can give us the key test to solve the alignment/counter-alignment problem as the number of orthogonal interpulse pulsars ($\chi \approx 90^{\circ }$) drastically depends on the evolutionary trajectory.

15 pages

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Cited by in corpus (10)

• The Thousand-Pulsar-Array programme on MeerKAT XI: Application of the rotating vector model
• The Galactic population and properties of young, highly-energetic pulsars
• Magnetic angle evolution in accreting neutron stars
• Pulsar death line revisited -- II. 'The death valley'
• The influence of small scale magnetic field on the heating of J0250+5854 polar cap
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• Observational Constraints on the Pulsar Wind Model: The Cases of Crab and Vela
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