Abstract
THIS article presents new measurements of the arrival times of optical pulses from the Crab pulsar, NP 0532. The observations were obtained at Hamburg Observatory (Bergedorf) with a 60 cm refractor and a data acquisition system with an on-line computer (PDP-8/S). Comparison of our results with those obtained by Boynton et al.1 and Richards et al.2 does not support the assumption of a periodic wobble with a period of 77 days (ref. 2).
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References
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HØG, E., LOHSEN, E. Irregularities in the Crab Pulsar Wobble. Nature 227, 1229–1230 (1970). https://doi.org/10.1038/2271229a0
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DOI: https://doi.org/10.1038/2271229a0
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