Abstract
THE first discontinuity in period of the Vela Pulsar (PSR 0833–45) occurred between February 24 and March 3, 1969 (refs. 1 and 2). The period decreased by 208 ns and the rate of change of period increased by 1 × 10−15 s s−1. A similar discontinuity occurred between August 21 and September 4, 1971. A preliminary analysis of the data shows that the period decreased by 179 ns and that the rate of change of period increased. A definitive analysis of the discontinuity will have to await more data because of the normally irregular behaviour of the period3.
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References
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REICHLEY, P., DOWNS, G. Second Decrease in the Period of the Vela Pulsar. Nature Physical Science 234, 48 (1971). https://doi.org/10.1038/physci234048a0
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DOI: https://doi.org/10.1038/physci234048a0
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