The electrohydrodynamic mechanism of plasma ejection in radiopulsars.

Details The electrohydrodynamic mechanism of plasma ejection in radiopulsars. The electrohydrodynamic mechanism of plasma ejection in radiopulsars.

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988afz....29..355m&link_type=abstract

Astrofizika, Tom 29, Vyp. 2, p. 355 - 368

Astronomy and Astrophysics

Astronomy

Pulsars: Electrodynamics, Pulsars: Plasma Diagnostics, Pulsars: Neutron Stars

Scientific paper

The electrohydrodynamic (EHD) instability of the surface of a conducting liquid in an intense magnetic field is considered. The dispersion relation describing the instability is obtained for the case of vertical magnetic and electric fields. The instability is demonstrated for the physical conditions of a neutron-star surface taking into account the low (≡0.1 - 0.2 keV) ion binding energy within the surface. The main physical consequences of the instability for radio pulsars with the surface (polar cap) temperature of a neutron star about 105: the appearance of effective (EHD) mechanism of plasma ejection from the magnetic polar cap regions and the possibility of stationary self-consistent pulsar regime are briefly discussed. The "death" line on the P vs PdP/dt diagram for radio pulsars is drawn corresponding to the condition when the EHD instability does not develop.

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