Discovery of regular drift, ''anomalous'' in direction, of subpulses of pulsar PSR 0320+39
The phenomenon of regular drift of subpulses with a drift period P/sub d/ = 8.5P and with an interval between subpulses S/sub d/ = 31.7 msec was discovered from observations of the long-period pulsar PSR 0320+39 (P = 3.032 sec) at 102.5 MHz. In contrast to other known regularly drifting pulsars, the subpulses of PSR 0320+39 drift in the opposite to usual direction, from the leading edge of the radio-emission window to its trailing front. The discovery of the drift of PSR 0320+39 in the ''anomalous'' direction may serve as experimental confirmation that the direction of drift of subpulses is determined by a geometrical factor, i.e., by the mutual orientation of the line of sight and the emission cone of the pulsar, and it is a strong argument in favor of the model of drift as the differential rotation of regions of radio emission around the magnetic belt of the neutron star.
- Research Organization:
- P. N. Lebedev Physics Institute, USSR Academy of Sciences
- OSTI ID:
- 6371575
- Journal Information:
- Sov. Astron. (Engl. Transl.); (United States), Vol. 26:3
- Country of Publication:
- United States
- Language:
- English
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