Abstract
OBSERVATIONS made over the past six years show that the rotation measure of the Vela pulsar has increased by 14%, while over the same period the dispersion measure has shown a marginally significant decrease of about 0.2%. These results imply that a region containing a relatively strong magnetic field has moved across the path to the pulsar. This region of strong field is most probably associated with filamentary structure in the Vela supernova remnant.
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HAMILTON, P., MCCULLOCH, P., MANCHESTER, R. et al. Detection of change in rotation measure of the Vela pulsar. Nature 265, 224–225 (1977). https://doi.org/10.1038/265224a0
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DOI: https://doi.org/10.1038/265224a0
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