A model for the binary pulsar radio eclipse.

Details A model for the binary pulsar radio eclipse. A model for the binary pulsar radio eclipse.

Apr 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...320l..45k&link_type=abstract

Astronomy and Astrophysics, Vol. 320, No. 3, p. L45 - L48

Astronomy and Astrophysics

Astrophysics

6

Binary Pulsars: White Dwarfs, Binary Pulsars: Eclipses

Scientific paper

A problem of the binary pulsar radio eclipses is considered. Recent theoretical work concerning this problem is discussed and a plasma mechanism of radio eclipses in the PSR B1957+20 binary system is presented. The companion star is assumed to be a degenerate white dwarf with nearly dipolar magnetosphere filled with relativistic particles of the pulsar wind. It is argued that radio waves are strongly damped in the companion's magnetosphere due to the cyclotron resonance with particles of the electron-positron plasma. The large, stable, continuous and frequency-dependent eclipses should occur as a result of this process, which agrees well with observations. Possible mechanisms of generation of the optical and high-energy emission are also suggested in the framework of the presented model.

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