Jan Högbom
Born
Jan Arvid Högbom

(1929-10-03) October 3, 1929
Alma materUniversity of Cambridge (PhD)
Known forCLEAN algorithm
Scientific career
ThesisThe structure and magnetic field of the solar corona (1959)
Doctoral advisorMartin Ryle

Jan Arvid Högbom (born 3 October 1929) is a Swedish radio astronomer and astrophysicist.

Education

Högbom obtained his PhD in 1959 from the University of Cambridge[1] with Martin Ryle.

Career and research

Högbom is most well known for the development of the CLEAN algorithm for deconvolution of images created in radio astronomy, published in 1974.[2][3] This allows the use of arrays of small antennae, generating incomplete sampling data, to effectively simulate a much larger aperture. Högbom was also the first to use Earth rotation synthesis imaging in a small test.[1][4][5]

These methods pioneered by Högbom are still extensively used and combined, e.g. in the imaging of the central supermassive black hole of the Messier 87 galaxy.[6][7]

Awards and honours

Högbom was elected member of the Royal Swedish Academy of Sciences in 1981.[8]

References

  1. 1 2 Högbom, Jan A. (1959). The structure and magnetic field of the solar corona. cam.ac.uk (PhD thesis). University of Cambridge.
  2. ↑ Högbom, Jan A. (1974). "Aperture Synthesis with a Non-Regular Distribution of Interferometer Baselines". Astronomy and Astrophysics Supplement. 15: 417–426. Bibcode:1974A&AS...15..417H.
  3. ↑ Cornwell, T. J. (2009). "Hogbom's CLEAN algorithm. Impact on astronomy and beyond". Astronomy and Astrophysics. 500 (1): 65–66. doi:10.1051/0004-6361/200912148.
  4. ↑ "Högbom, Jan". scienceworld.wolfram.com.
  5. ↑ Högbom, Jan A. (2003). "Early Work in Imaging" (PDF). ASP Conference Series. 300: 17–20. Bibcode:2003ASPC..300...17H.
  6. ↑ The Event Horizon Telescope Collaboration (2019). "First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole". The Astrophysical Journal Letters. 875 (1): L1. arXiv:1906.11238. Bibcode:2019ApJ...875L...1E. doi:10.3847/2041-8213/ab0ec7.
  7. ↑ The Event Horizon Telescope Collaboration (2019). "First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole". The Astrophysical Journal Letters. 875 (1): L4. arXiv:1906.11241. Bibcode:2019ApJ...875L...4E. doi:10.3847/2041-8213/ab0e85. hdl:10150/633752.
  8. ↑ "Royal Swedish Academy of Sciences".
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