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Add four "tilde"s at the end; they become your signature. T (talk) 14:08, 21 December 2020 (JST)
T (talk) 14:08, 21 December 2020 (JST)
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In 1968 (10 November), Lovelace discovered period \(P\approx 33\) ms of the Crab Pulsar.[1]Cite error: Closing </ref> missing for <ref> tagThe special code named Gallop in Fortran was adapted to run on the Arecibo Observatory's CDC 3200 computer, which had a memory of 32,000 words of 24 bit length; the code was integer-based, using half-words of 12 bits, and was able to do the fast Fourier transform of N=16,384 signal samples; the 8192 signal power values were printed out on a folded raster scan; the signal to noise ratio increases as N increases; this was the largest value of N that could be handled by the Arecibo computer.[2]. This program helped to separate the periodic pulsar signal from the noise, and one night he discovered the period of the Crab pulsar, which is approximately 33 ms (33.09 ms).[1]<new ref=”Lang2913”>[Astrophysical Formulae
Space, Time, Matter and Cosmology
] Kenneth R. Lang 2014, Publisher: Springer Berlin Heidelberg</ref>
References
- ↑ 1.0 1.1 "Crab nebula pulsar NP 0532" 1969, J. M. Comella, H. D. Craft, R. V. E. Lovelace, J. M. Sutton, G. L. Tyler, Nature 221 (5179), 453-454.
- ↑ [On the Discovery of the Period of the Crab Nebula Pulsar https://astro.cornell.edu/sites/people/files/CrabPeriodDiscovery1.pdf ] R.V.E. Lovelace & G. Leonard Tyler, 2012, The Observatory, V. 132, p. 186