Peculiarities of the switching of modes of radio emission in the pulsar PSR 0943+10.

Astronomy and Astrophysics – Astronomy

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Pulsars: Radio Radiation, Pulsars: Pulse Profiles

Scientific paper

Observations of the pulsar PSR 0943+10 at 40 MHz (Pushchino, Russia) and 430 MHz (Arecibo, USA) have revealed a process that is a precursor to bursts of either of the two modes of radio emission of the pulsar pulses. In PSR 0943+10, a new mode is preceded by a gradual decrease in the intensity of the pulses, which gives way to a rapid decay one minute before a sharp switch from one mode to the other and which lasts for some time after this event. Variations in the intensity of the pulsar radio emission during the mode switching appear to be caused by the relaxation of a hot spot on the surface of the neutron star.

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