Hendrik C. van de Hulst
|Hendrik C. van de Hulst|
Hendrik C. van de Hulst in 1977
19 November 1918|
Utrecht, the Netherlands
|Died||31 July 2000
Leiden, the Netherlands
|Institutions||University of Leiden|
|Known for||21 cm hyperfine line|
|Notable awards||Henry Draper Medal (1955)
Eddington Medal (1955)
Rumford Medal (1964)
Bruce Medal (1978)
Karl Schwarzschild Medal (1995)
In 1944, while a student in Utrecht, he predicted the existence of the 21 cm hyperfine line of neutral interstellar hydrogen. After this line was discovered, he participated, with Jan Oort and C.A. Muller, in the effort to use radio astronomy to map out the neutral hydrogen in our galaxy, which first revealed its spiral structure.
He spent most of his career at the University of Leiden, retiring in 1984. He published widely in astronomy, and dealt with the solar corona, and interstellar clouds. After 1960 he was a leader in international space research projects.
- Henry Draper Medal of the National Academy of Sciences (1955)
- Eddington Medal of the Royal Astronomical Society (1955)
- Rumford Medal of the Royal Society (1964)
- Bruce Medal of the Astronomical Society of the Pacific (1978)
- Karl Schwarzschild Medal of the Astronomische Gesellschaft (1995)
Named after him
- Cook, A. (2001). "Hendrik Christoffel Van De Hulst Ridder in De Orde Van Nederlandse Leeuw. 19 November 1918 - 31 July 2000: Elected For.Mem.R.S. 1991". Biographical Memoirs of Fellows of the Royal Society. 47: 465. doi:10.1098/rsbm.2001.0028.
- Astronomy Tree profile Hendrik Christoffel van de Hulst
- "Hulst, Hendrik Christoffel van de." in Encyclopædia Britannica (2010)
- "Hendrik Christoffel van de Hulst (1918 - 2000)". Royal Netherlands Academy of Arts and Sciences. Retrieved 28 July 2015.
- "Henry Draper Medal". National Academy of Sciences. Retrieved 24 February 2011.
- "Past Winners of the Catherine Wolfe Bruce Gold Medal". Astronomical Society of the Pacific. Retrieved 24 February 2011.
- Tenn, Joe. "Hendrik Christoffel van de Hulst". Sonoma State University. Retrieved 5 January 2007.
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