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arXiv · 2004.03211

Orthogonal pulsars as a key test for pulsar evolution

E. M. Novoselov·V. S. Beskin·A. K. Galishnikova·M. M. Rashkovetskyi·A. V. Biryukov
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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.

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E. M. Novoselov, V. S. Beskin, A. K. Galishnikova, M. M. Rashkovetskyi, A. V. Biryukov. 2020-04-07. Orthogonal pulsars as a key test for pulsar evolution. https://doi.org/10.1093/mnras/staa904

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