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Hendrik Christoffel "Henk" van de Hulst (19 November 1918 – 31 July 2000) was a Dutch astronomer and mathematician.

Hendrik C. van de Hulst
Hendrik C. van de Hulst in 1977
Born(1918-11-19)19 November 1918
Utrecht, the Netherlands
Died31 July 2000(2000-07-31) (aged 81)
Leiden, the Netherlands
NationalityDutch
Known for21 cm hyperfine line
Anomalous diffraction theory
AwardsHenry Draper Medal (1955)
Eddington Medal (1955)
Rumford Medal (1964)
Bruce Medal (1978)
Karl Schwarzschild Medal (1995)
Scientific career
FieldsAstronomy
InstitutionsUniversity of Leiden
ThesisOptics of spherical particles (1946)
Doctoral advisorMarcel Minnaert[1]
Doctoral studentsElly Dekker[2]

In 1944, while a student in Utrecht,[3] 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. Motivated by the scattering in cosmic dust, he studied light scattering by spherical particles and wrote his doctoral thesis on the topic,[1] subsequently formulating the anomalous diffraction theory.[4]

He spent most of his career at Leiden University, 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.[5]

In 1956 he became member of the Royal Netherlands Academy of Arts and Sciences.[6]


Books



Honors


Awards

Named after him


References


  1. Habing, H. J. (February 2001). "Obituaries: Hendrik Christoffel van de Hulst, 1918-2000". Astronomy & Geophysics. 42 (1): 1.33–1.37. Bibcode:2001A&G....42a..33H. doi:10.1046/j.1468-4004.2001.0420011.33.x.
  2. van der Kruit, Pieter C. (2019). "Appendix A.4: Oort and His Students: a List of Ph.D. Theses". Jan Hendrik Oort. Astrophysics and Space Science Library. Vol. 459. Springer International Publishing. pp. 633–635. doi:10.1007/978-3-030-17801-7. ISBN 978-3-030-17800-0.
  3. Astronomy Tree profile Hendrik Christoffel van de Hulst
  4. van de Hulst, H. C. (1957). Light scattering by small particles. New York: John Wiley and Sons. ISBN 9780486139753.
  5. "Hulst, Hendrik Christoffel van de." in Encyclopædia Britannica (2010)
  6. "Hendrik Christoffel van de Hulst (1918–2000)". Royal Netherlands Academy of Arts and Sciences. Retrieved 28 July 2015.
  7. "Hendrik C. van de Hulst Bibliography". Sonoma State University: Department of Physics and Astronomy. Sonoma State University. Retrieved 16 January 2020.
  8. "Henry Draper Medal". National Academy of Sciences. Archived from the original on 26 January 2013. Retrieved 24 February 2011.
  9. "Past Winners of the Catherine Wolfe Bruce Gold Medal". Astronomical Society of the Pacific. Archived from the original on 21 July 2011. Retrieved 24 February 2011.

Bibliography




На других языках


[de] Hendrik Christoffel van de Hulst

Hendrik Christoffel van de Hulst, genannt Henk, (* 19. November 1918 in Utrecht; † 31. Juli 2000 in Leiden) war einer der bedeutendsten niederländischen Astrophysiker der letzten 150 Jahre.
- [en] Hendrik C. van de Hulst

[es] Hendrik Christoffel van de Hulst

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.

[fr] Hendrik Christoffel van de Hulst

Hendrik Christoffel van de Hulst (Utrecht, 19 novembre 1918 – Leyde, 31 juillet 2000) était un astronome néerlandais.

[it] Hendrik Christoffel van de Hulst

Hendrik Christoffel van de Hulst (Utrecht, 19 novembre 1918 – Leida, 31 luglio 2000) è stato un astronomo e matematico olandese.

[ru] Хюлст, Хендрик Кристофель ван де

Хендрик Кристофель ван де Хюлст (нидерл. Hendrik Christoffel van de Hulst; 1918—2000) — голландский астроном и математик.



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