Jan Arvid Högbom (born 3 October 1929) is a Swedish radio astronomer and astrophysicist.
Jan Högbom | |
|---|---|
| Born | Jan Arvid Högbom October 3, 1929 |
| Alma mater | University of Cambridge (PhD) |
| Known for | CLEAN algorithm |
| Scientific career | |
| Thesis | The structure and magnetic field of the solar corona (1959) |
| Doctoral advisor | Martin Ryle |
Education edit
Högbom obtained his PhD in 1959 from the University of Cambridge[1] with Martin Ryle.[citation needed]
Career and research edit
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 edit
Högbom was elected member of the Royal Swedish Academy of Sciences in 1981.[8]
References edit
- ^ a b Högbom, Jan A. (1959). The structure and magnetic field of the solar corona. cam.ac.uk (PhD thesis). University of Cambridge.
- ^ 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.
- ^ 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.
- ^ "Högbom, Jan". scienceworld.wolfram.com.
- ^ Högbom, Jan A. (2003). "Early Work in Imaging" (PDF). ASP Conference Series. 300: 17–20. Bibcode:2003ASPC..300...17H.
- ^ 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.
- ^ 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.
- ^ "Royal Swedish Academy of Sciences".