Pulsar PSR B2303+30: a single system of drifting subpulses, moding and nulling

Autor:	Stephen L. Redman, Joanna M. Rankin, Geoffrey A. E. Wright
Rok vydání:	2005
Předmět:	Physics Circulation (fluid dynamics) Pulsar Series (mathematics) Space and Planetary Science media_common.quotation_subject Mode (statistics) Astronomy and Astrophysics Astrophysics Multiple pulse Asymmetry media_common
Zdroj:	Monthly Notices of the Royal Astronomical Society. 357:859-872
ISSN:	1365-2966 0035-8711
DOI:	10.1111/j.1365-2966.2005.08672.x
Popis:	Analyses of multiple pulse sequences of B2303+30 reveal that this pulsar has 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 driftbands with a periodicity of approximately 3 P/cycles, 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 driftrates in both modes are linked in a series of cycles, which can be modelled as relaxing oscillations in the underlying circulation rate.
Databáze:	OpenAIRE
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