Radio pulsar death

Details Radio pulsar death Radio pulsar death

2002-09-09

arxiv.org/abs/astro-ph/0209160v1

Acta Astron.Sin. 44 (2003) 215-222

Astronomy and Astrophysics

Astrophysics

9 pages, talk presented at Sino-German radio astronomy conference on radio studies of galactic objects, galaxies and AGNs. To

Scientific paper

Pulsar radio emission is believed to be originated from the electron-positron pairs streaming out from the polar cap region. Pair formation, an essential condition for pulsar radio emission, is believed to be sustained in active pulsars via one photon process from either the curvature radiation (CR) or the inverse Compton scattering (ICS) seed photons, or sometimes via two photon process. In pulsars with super-critical magnetic fields, some more exotic processes, such as magnetic photon splitting and bound pair formation, will also play noticeable roles. All these effects should be synthesized to discuss radio pulsar death both in the conventional long-period regime due to the turnoff of the active gap, and in the high magnetic field regime due to the possible suppression of the free pair formation. Here I briefly review some recent progress in understanding radio pulsar death.

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