A study of PSR 0826−34 – a remarkable pulsar

Observations of individual pulses from PSR 0826−34 at 645 MHz show subpulses at all longitudes. The integrated pulse profile is very wide and possesses a strong interpulse which leads the midpoint of the main double pulse by about 150° of longitude. A remarkable pattern of drifting subpulses occurs...

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Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society 1985-07, Vol.215 (2), p.281-294
Main Authors: Biggs, J. D., McCulloch, P. M., Hamilton, P. A., Manchester, R. N., Lyne, A. G.
Format: Article
Language:English
Subjects:
Astronomy
Earth, ocean, space
Exact sciences and technology
Late stages of stellar evolution (including black holes)
Neutron stars
Stars
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Summary:Observations of individual pulses from PSR 0826−34 at 645 MHz show subpulses at all longitudes. The integrated pulse profile is very wide and possesses a strong interpulse which leads the midpoint of the main double pulse by about 150° of longitude. A remarkable pattern of drifting subpulses occurs across nearly 200° of longitude, with typically five drift bands present. The drift rate shows wide variations including sign reversals, but no significant variations in the secondary period (P2) were observed. The character of integrated pulse polarization profiles at 408 and 610 MHz and the width of the integrated pulse profile are consistent with a nearly aligned rotator emission geometry with possible elongation of the emission beam. Current proposals for the drifting subpulse mechanism do not adequately describe the observed drifting subpulse behaviour.
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/215.2.281