Abstract
MEASUREMENTS of average pulse shape made at the Arecibo Ionospheric Observatory have shown that the duration of an average pulse from the pulsar CP 1133 increases progressively with decreasing radio frequency. The effect results in a pulse duration at 40 MHz roughly twice that at 430 MHz. We give here the observational results for CP 1133. Other Arecibo observations show that CP 0834 behaves in a similar way, and the effect may well be common to all pulsars.
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References
Drake, F. D., Science, 160, 416 (1968).
Lyne, A. G., and Rickett, B. J., Nature, 218, 326 (1968).
Drake, F. D., and Craft, H. D., Science, 160, 758 (1968).
Drake, F. D., and Craft, H. D., Nature, 220, 231 (1968).
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CRAFT, H., COMELLA, J. Frequency Dependent Pulse Widths for CP 1133. Nature 220, 676–678 (1968). https://doi.org/10.1038/220676a0
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DOI: https://doi.org/10.1038/220676a0
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