Difference between revisions of "User talk:Marina"
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| − | In 1968 (10 November), Lovelace and his collaborators discovered period <math>P\approx 33</math> ms of the [[Crab Pulsar]].<ref name= |
+ | In 1968 (10 November), Lovelace and his collaborators discovered period <math>P\approx 33</math> ms of the [[Crab Pulsar]].<ref name="ExpertiseFinder">[https://network.expertisefinder.com/experts/richard-lovelace “Expertise Finder”] R. V. E. Lovelace, J. M. Sutton, and H. D. Craft 1968, November, IAU Circ., No. 2113, #1 (1968) </ref><ref name="Lovell1973">[https://ui.adsabs.harvard.edu/abs/1973ozjb.book.....L/abstract "Out of the Zenith. Jodrell Bank 1957-1970"] Sir. Bernard Lovell 1973, London: Oxford University Press, pp 1-255 (see page159).</ref> As a graduate student working at [[Arecibo Observatory]], Lovelace developed a version of the [[Fast Fourier transform]] program <ref name="Lovelace1969">[https://ui.adsabs.harvard.edu/abs/1969Natur.222..231L/abstract "Digital Search Methods for Pulsars"] R. V. E. Lovelace, J. M. Sutton, E. E. Salpeter 1969, ''Nature'' 222 (5190), 231-233.</ref> |
<ref name="Heideman1984">[https://www.cis.rit.edu/class/simg716/Gauss_History_FFT.pdf "Gauss and the history of the fast Fourier transform"] Heideman, Michael T., Johnson, Don H., Burrus, Charles Sidney 1984. (PDF). IEEE ASSP Magazine. 1 (4): 14–21. CiteSeerX 10.1.1.309.181. doi:10.1109/MASSP.1984.1162257. S2CID 10032502</ref> which |
<ref name="Heideman1984">[https://www.cis.rit.edu/class/simg716/Gauss_History_FFT.pdf "Gauss and the history of the fast Fourier transform"] Heideman, Michael T., Johnson, Don H., Burrus, Charles Sidney 1984. (PDF). IEEE ASSP Magazine. 1 (4): 14–21. CiteSeerX 10.1.1.309.181. doi:10.1109/MASSP.1984.1162257. S2CID 10032502</ref> which |
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was adapted to run on the Arecibo Observatory's [[CDC 3000 series|CDC 3200]] computer. |
was adapted to run on the Arecibo Observatory's [[CDC 3000 series|CDC 3200]] computer. |
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Revision as of 06:11, 10 February 2021
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In 1968 (10 November), Lovelace and his collaborators discovered period \(P\approx 33\) ms of the Crab Pulsar.[1][2] As a graduate student working at Arecibo Observatory, Lovelace developed a version of the Fast Fourier transform program [3] [4] which was adapted to run on the Arecibo Observatory's CDC 3200 computer. [5] This program helped to separate the periodic pulsar signal from the noise, and one night he discovered the period of the Crab pulsar. [6][7] A few weeks earlier, observers from the National Radio Astronomy Observatory reported about two pulsating sources near the Crab Nebula, with no evident periodicities.[8][9] Lovelace and collaborators found that one of pulsars (the NP 0532) is located in the center of the Crab Nebula (with precision of 10') and found it's period with a high precision: 33.09 ms.[6][7]
This was the fastest pulsar found at that time.[2][10] This discovery helped to proof the idea that pulsars were rotating neutron stars.[11][12] Before that, many scientists believed that pulsars were pulsating white dwarfs or neutron stars.[13][14]
Please, add reference at the end of this phrase:
and in 2010 became an editorial board member of Journal of Computational Astrophysics and Cosmology.Template:Citation needed
and in 2010 became an editorial board member of [Journal of Computational Astrophysics and Cosmology.[1]
References
- ↑ “Expertise Finder” R. V. E. Lovelace, J. M. Sutton, and H. D. Craft 1968, November, IAU Circ., No. 2113, #1 (1968)
- ↑ 2.0 2.1 "Out of the Zenith. Jodrell Bank 1957-1970" Sir. Bernard Lovell 1973, London: Oxford University Press, pp 1-255 (see page159).
- ↑ "Digital Search Methods for Pulsars" R. V. E. Lovelace, J. M. Sutton, E. E. Salpeter 1969, Nature 222 (5190), 231-233.
- ↑ "Gauss and the history of the fast Fourier transform" Heideman, Michael T., Johnson, Don H., Burrus, Charles Sidney 1984. (PDF). IEEE ASSP Magazine. 1 (4): 14–21. CiteSeerX 10.1.1.309.181. doi:10.1109/MASSP.1984.1162257. S2CID 10032502
- ↑ "On the Discovery of the Period of the Crab Nebula Pulsar" R.V.E. Lovelace & G. L. Tyler 2012, The Observatory, V. 132, p. 186-188
- ↑ 6.0 6.1 "Crab nebula pulsar NP 0532" J. M. Comella, H. D. Craft, R. V. E. Lovelace, J. M. Sutton, G. L. Tyler 1969, Nature 221 (5179), 453-454
- ↑ 7.0 7.1 "Astrophysical Formulae. Space, Time, Matter and Cosmology" Kenneth R. Lang 2014, Publisher: Springer Berlin Heidelberg
- ↑ "Pulsating radio sources near Crab Nebula" Howard, W. E., Staelin, D. H., Reifenstein, E. C. 1968, IAU Circ., No. 2110, #2
- ↑ "Pulsating Radio Sources near the Crab Nebula" Staelin, David H. and Reifenstein, Edward C., III, December 1968, Science, Volume 162, Issue 3861, pp. 1481-1483
- ↑ Template:Cite book
- ↑ ” Rotating Neutron Stars as the Origin of the Pulsating Radio Sources” T. Gold 1968, Nature, Volume 218, Issue 5143, pp. 731-732
- ↑ "Recent observations of pulsars support the rotating neutron star hypothesis." T. Gold, 1969, Nature, Volume 221, Issue 5175, pp. 25-27.
- ↑ “Observations of a Rapidly Pulsating Radio Source” A. Hewish, S. J. Bell, J. D. H. Pilkington, P. F. Scott and R. A. Collins 1968, Nature, 217, 709-713.
- ↑ "On the discovery of the period of the Crab Nebula pulsar" R. V. E. Lovelace and G. L. Tyler 2012, The Observatory 132, 186–187.