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Hendrik Christoffel "Henk" van de Hulst (19 November 1918 – 31 July 2000) was a Dutch astronomer. In 1944, while a student in Utrecht, he predicted the existence of the 21 cm hyperfine line of neutral interstellar hydrogen.
Hendrik Christoffel van de Hulst (Utrecht, 19 de noviembre de 1918 - Leiden, 31 de julio de 2000) fue un astrónomo neerlandés. Predijo teóricamente las ondas de radio emitidas por el hidrógeno del espacio interestelar, las cuales pueden ser detectadas desde la Tierra.
Hendrik Christoffel van de Hulst was a Dutch astronomer who predicted theoretically the 21-cm (8.2-inch) radio waves produced by interstellar hydrogen atoms. His calculations later proved valuable in mapping the Milky Way Galaxy and were the basis for radio astronomy during its early development.
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Astronomische Gesellschaft, Karl Schwarzschild Medal, 1995. French Academy of Sciences, Janssen Medal, C. R. Acad. Sci., Sér Gen., Vie Sci. 9, 5, 370 (1992). National Academy of Sciences, Henry Draper Medal, 1955. National Radio Astronomy Observatory, Jansky Lectureship, 1987. Royal Astronomical Society, Eddington medal, 1955, presented by John Jac...
Cook, Alan, Biographical Memoirs of the Royal Society, 47, 465–479 (2001). van de Hulst, H. C., “Roaming Through Astrophysics,” Ann. Rev. Astron. Astrophys 36, 1 (1998).
Habing, H.J., Astronomy & Geophysics 42, 1, 1.33-1.35 (Feb 2001). Hovenier, J.W., Journal of Quantitative Spectroscopy and Radiative Transfer 68, iii-v (2001). van delft, Dirk, Reiziger in het wereldruim (Prometheus, 2021) [full biography, in Dutch] [Review Welther, Barbara L., Bull. Am. Astr. Soc. 32, 1688-89 (2000).
Hendrik Christoffel van de Hulst fue un astrónomo neerlandés. Predijo teóricamente las ondas de radio emitidas por el hidrógeno del espacio interestelar, las cuales pueden ser detectadas desde la Tierra.
1 de dic. de 2000 · Hendrik "Henk" C. van de Hulst, an honorary member of the AAS, died in Leiden on July 31, 2000, at the age of 81. He was one of the greatest Dutch astronomers of the past 150 years.
Dutch physicist and astronomer born in 1918 in Utrecht, the Netherlands. He is the author of Light Scattering by Small Particles (1957) and Multiple Light Scattering (1980), and his 1951 mimeographed A Course in Radio Astronomy was an important forerunner of early textbooks in the field.
