Open AccessPulsar PSR B2303+30: a single system of drifting subpulses, moding and nulling
Author(s) -
Redman Stephen L.,
Wright Geoffrey A. E.,
Rankin Joanna M.
Publication year - 2005
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2005.08672.x
Subject(s) - physics , pulsar , asymmetry , astrophysics , mode (computer interface) , stochastic drift , pulse (music) , optics , quantum mechanics , statistics , mathematics , detector , computer science , operating system
ABSTRACT 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 3 P 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.