Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 357, Issue 3, Pages 859-872Publisher
BLACKWELL PUBLISHING LTD
DOI: 10.1111/j.1365-2966.2005.08672.x
Keywords
MHD; plasmas; polarization; radiation mechanisms : non thermal; pulsars : general; pulsars : individual : B2303+30
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Analyses of multiple pulse sequences of the pulsar PSR B2303 + 30 reveal two distinct emission modes. One mode (B) follows a steady even-odd pattern and is more intense. The second mode (Q) is characteristically weak, but has intermittent drift bands with a periodicity of approximately 3P(1)/cycle, and nulls much more frequently than the B mode. Both modes occur with roughly equal frequency, and their profiles have a similar single-humped form with a slight asymmetry. Our observations and analyses strongly suggest that the subpulse drift rates in both modes are linked in a series of cycles, which can be modelled as relaxing oscillations in the underlying circulation rate.
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