An auroral precipitation model for the rapid X-ray burster

Details An auroral precipitation model for the rapid X-ray burster An auroral precipitation model for the rapid X-ray burster

Apr 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...255..705d&link_type=abstract

Astrophysical Journal, Part 1, vol. 255, Apr. 15, 1982, p. 705-715. Research supported by the Lockheed Independent Research Pro

Astronomy and Astrophysics

Astrophysics

9

Magnetohydrodynamic Stability, Magnetospheric Instability, Particle Precipitation, Polar Substorms, Rotating Fluids, X Ray Sources, Atmospheric Models, Auroral Zones, Bursts, Trapped Particles

Scientific paper

Rotating magnetospheres may be separated into the categories of (1) fast rotators, such as pulsars, which are dominated by gravitational and centrifugal effects and have flattened, distended magnetospheres, and (2) slow rotators such as the earth, whose dominant forces are gravitational, electric and magnetic. It is proposed that the rapid X-ray burster may be a slow rotator, with magnetospheric activity resembling that of the earth, and that the relaxation oscillator turning the burster on and off has for its terrestrial analogue the pulsating aurorae. Repeated bursts of particle precipitation from a magnetospheric trapping region are expected when particle injection in a substorm results in trapping region saturation, which in turn leads to a rapid plasma wave growth that ends when the resonant particles are removed by precipitation. Given a continual accreting matter source, wave-growth and precipitation episodes repeat at semiregular intervals that lead to radiation bursts when precipitating particles are stopped in the atmosphere.

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