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    Jan Högbom

    Topic: Biography

     From Handwiki - Reading time: 3 min
    Short description: Swedish astronomer and university professor
    Jan Högbom
    Born
    Jan Arvid Högbom

    (1929-10-03) October 3, 1929 (age 94)
    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.[citation needed]

    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. ↑ 1.0 1.1 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". http://scienceworld.wolfram.com/biography/Hoegbom.html. 
    5. ↑ Högbom, Jan A. (2003). "Early Work in Imaging". ASP Conference Series 300: 17–20. Bibcode: 2003ASPC..300...17H. http://www.aspbooks.org/publications/300/17.pdf. 
    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. doi:10.3847/2041-8213/ab0ec7. Bibcode: 2019ApJ...875L...1E. 
    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. doi:10.3847/2041-8213/ab0e85. Bibcode: 2019ApJ...875L...4E. 
    8. ↑ "Royal Swedish Academy of Sciences". https://www.kva.se/en/om-oss/ledamoter/jan-hogbom. 



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