Investigation of the unique nulling properties of PSR B0818-41

Details Investigation of the unique nulling properties of PSR B0818-41 Investigation of the unique nulling properties of PSR B0818-41

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aipc.1357..287b&link_type=abstract

RADIO PULSARS: AN ASTROPHYSICAL KEY TO UNLOCK THE SECRETS OF THE UNIVERSE. AIP Conference Proceedings, Volume 1357, pp. 287-288

Other

Radio, Acceleration, Magnetosphere, Magnetic Fields, Radio, Microwave, Particle Acceleration, Magnetosphere Interactions, Gravitational Radiation, Magnetic Fields, And Other Observations

Scientific paper

We investigate the unique nulling properties PSR B0818-41 with the GMRT at 325 and 610 MHz. A strong trend in the intensity fluctuations of the individual pulses just before and after the nulls is observed by us for this pulsar. In addition, we report a possible connection between the intensity fluctuations and the drift rate of subpulses just before and after the nulls. We find some very specific and well correlated changes in the radio emission properties of PSR B0818-41 when the emission restarts after a null. These could imply that the phenomenon of nulling is associated with some kind of a ``reset'' of the pulsar radio emission engine.

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