Pulsar extinction

Details Pulsar extinction Pulsar extinction

Jan 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...195l..69m&link_type=abstract

Astrophysical Journal, vol. 195, Jan. 15, 1975, pt. 2, p. L69-L71.

Astronomy and Astrophysics

Astrophysics

5

Particle Acceleration, Pulsars, Radio Emission, Stellar Magnetic Fields, Stellar Rotation, Angular Velocity, Coherent Electromagnetic Radiation, Cosmic Plasma, Escape Velocity, Lines Of Force, Magnetic Control, Plasma Control, Relativistic Particles

Scientific paper

We show that the plasma from a very slowly rotating pulsar can escape without forcing open the field lines. Our suggestion is that such opening is essential for the radio emission, and hence the consequence for slow pulsars is extinction of the pulsar phenomenon. The critical period is estimated to be about 3 seconds for typical pulsar magnetic moments (10 to the 20-th power weber-m), in reasonable agreement with the data, which suggest a cutoff in this vicinity. Such slow 'pulsars' nevertheless should continue to emit relativistic particles as long as surface ions (e.g., iron) are available.

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