Andrew Lyne Explained

Andrew Lyne
Birth Name:Andrew Geoffrey Lyne
Birth Date:13 July 1942
Fields:Radio astronomy
Pulsars
Workplaces:Jodrell Bank Observatory
University of Manchester
University of Cambridge
Education:The Portsmouth Grammar School
Thesis Title:Interferometric Observations of Lunar Occulations and Pulsars
Thesis Year:1970
Thesis Url:https://www.librarysearch.manchester.ac.uk/permalink/44MAN_INST/1r887gn/alma992983306737101631
Doctoral Advisor:Francis Graham-Smith
Doctoral Students:Duncan Lorimer[1]
Awards:Herschel Medal (1992)

Andrew Geoffrey Lyne (born 13 July 1942) is a British physicist. Lyne is Langworthy Professor of Physics in the School of Physics and Astronomy, University of Manchester, as well as an ex-director of the Jodrell Bank Observatory. Despite retiring in 2007 he remains an active researcher within the Jodrell Bank Pulsar Group.[2] [3] Lyne writes that he is "mostly interested in finding and understanding radio pulsars in all their various forms and with their various companions. Presently, I am most occupied with the development of new multibeam search systems at Jodrell and Parkes, in order to probe deeper into the Galaxy, particularly for millisecond pulsars, young pulsars and any that might be in binary systems."

Education

Lyne was educated at Portsmouth Grammar School, the Royal Naval School, Tal Handaq, Malta, and the University of Cambridge, where he read the Natural Sciences Tripos as a student of St John's College, Cambridge. After his undergraduate degree from Cambridge, he continued to the University of Manchester for a PhD in Radio Astronomy where his research supervised by Francis Graham-Smith.[4]

Career and research

In 1991, Andrew Lyne and Matthew Bailes reported that they had discovered a pulsar orbited by a planetary companion;[5] this would have been the first planet detected around another star. However, after this was announced, the group went back and checked their work, and found that they had not properly removed the effects of the Earth's motion around the Sun from their analysis, and, when the calculations were redone correctly, the pulse variations that led to their conclusions disappeared, and that there was in fact no planet around PSR 1829-10. When Lyne announced the retraction of his results at a meeting of the American Astronomical Society, he received thunderous applause from his scientific colleagues for having the intellectual integrity and the courage to admit this error publicly.[6]

Double pulsar

In 2003, Lyne and his team discovered the first binary system found in which both components were pulsed neutron stars.[7] Lyne's colleague Richard Manchester called the PSR J0737-3039 system a "fantastic natural laboratory" for studying specialized effects of the General Theory of Relativity.Other recent work that Lyne has undertaken includes research on the globular cluster at 47 Tucanae,[8] whose dense stellar population acts as a nursery for millisecond and binary pulsars.

Awards and honours

Lyne was awarded the Herschel Medal by the Royal Astronomical Society in 1992 and elected a Fellow of the Royal Society (FRS) in 1996.[9]

Notes and References

  1. PhD. Duncan Ross. Lorimer . 1996. Galactic population of millisecond and normal pulsars. manchester.ac.uk. 657642507. University of Manchester.
  2. Smith . F. G.. Francis Graham-Smith . Davies . R. . Lyne . A. . Andrew Lyne. 10.1038/488592a . 22932377. Bernard Lovell (1913–2012) . Nature . 488 . 7413 . 592 . 2012 . 2012Natur.488..592S . Bernard Lovell. free .
  3. Web site: Pulsar Astrophysics | Jodrell Bank Centre for Astrophysics.
  4. Lyne. Andrew Geoffrey. Interferometric observations of lunar occulations and pulsars. 1970. PhD. University of Manchester. 1970. manchester.ac.uk. 643375430.
  5. Bailes . M. . Lyne . A. G. . Andrew Lyne. Shemar . S. L. . 10.1038/352311a0 . 1991Natur.352..311B. A planet orbiting the neutron star PSR1829–10 . Nature . 352 . 6333 . 311 . 1991 . 4339517 .
  6. Book: Planet Quest . 149 . Croswell . K. . Oxford University Press . 1997 .
  7. astro-ph/0401086. 2004Sci...303.1153L. A Double-Pulsar System: A Rare Laboratory for Relativistic Gravity and Plasma Physics. Science. 303. 5661. 1153–1157. Lyne. A. G. Burgay. M. Kramer. M. Possenti. A. Manchester. R. N. Camilo. F. McLaughlin. M. A. Lorimer. D. R. d'Amico. N. Joshi. B. C. Reynolds. J. Freire. P. C. C. 2004. 10.1126/science.1094645. 14716022. 18052400.
  8. Web site: The 47 Tucanae Pulsars Homepage . 8 January 2005 . 22 December 2004 . https://web.archive.org/web/20041222013947/http://www2.naic.edu/~pfreire/47Tuc/#New_Paper . dead .
  9. Web site: Andrew Lyne FRS. royalsociety.org. Anon. 1996. Royal Society. London.