De Sitter made major contributions to the field of physical cosmology. He co-authored a paper with Albert Einstein in 1932 in which they discussed the implications of cosmological data for the curvature of the universe. He also came up with the concept of the de Sitter space and de Sitter universe, a solution for Einstein's general relativity in which there is no matter and a positive cosmological constant. This results in an exponentially expanding, empty universe. De Sitter was also famous[citation needed] for his research on the motions of the moons of Jupiter.[2]
Willem de Sitter died after a brief illness in November 1934.[3][4][5]
Einstein, Ehrenfest, Willem de Sitter, Eddington, and Lorentz in Leiden (1923)
De Sitter, W. (1911). "On the bearing of the Principle of Relativity on Gravitational Astronomy" . Monthly Notices of the Royal Astronomical Society. 71 (5): 388–415. doi:10.1093/mnras/71.5.388. hdl:2027/mdp.39015019246357.
De Sitter, W. (1913). "A proof of the constancy of the velocity of light" . Proceedings of the Royal Netherlands Academy of Arts and Sciences. 15 (II): 1297–1298. Bibcode:1913KNAB...15.1297D.
"Ein astronomischer Beweis für die Konstanz der Lichtgeschwindigkeit" [An astronomical proof of the constancy of the speed of light]. Physikalische Zeitschrift. 14: 429. 1913.
"On the constancy of the velocity of light" . Proceedings of the Royal Netherlands Academy of Arts and Sciences. 16 (I): 395–396. 1913.
De Sitter, W. (1913). "Über die Genauigkeit, innerhalb welcher die Unabhängigkeit der Lichtgeschwindigkeit von der Bewegung der Quelle behauptet werden kann" [On the accuracy within which the independence of the speed of light from the motion of the source can be asserted]. Physikalische Zeitschrift. 14: 1267. Bibcode:1913PhyZ...14.1267D.
On Einstein's theory of gravitation and its astronomical consequences:
de Sitter, W. (1916-07-14). "On Einstein's Theory of Gravitation and its Astronomical Consequences. First Paper". Monthly Notices of the Royal Astronomical Society. 76 (9): 699–728. Bibcode:1916MNRAS..76..699D. doi:10.1093/mnras/76.9.699. ISSN 0035-8711 – via Oxford University Press.
de Sitter, W. (1916-12-08). "On Einstein's Theory of Gravitation and its Astronomical Consequences. Second Paper". Monthly Notices of the Royal Astronomical Society. 77 (2): 155–184. Bibcode:1916MNRAS..77..155D. doi:10.1093/mnras/77.2.155. ISSN 0035-8711 – via Oxford University Press.
de Sitter, W. (1917-11-09). "On Einstein's Theory of Gravitation and its Astronomical Consequences. Third Paper". Monthly Notices of the Royal Astronomical Society. 78 (1): 3–28. Bibcode:1917MNRAS..78....3D. doi:10.1093/mnras/78.1.3. ISSN 0035-8711 – via Oxford University Press.
^(PDF). Archived from the original (PDF) on 2019-05-25. Retrieved 2019-03-11.{{cite web}}: CS1 maint: archived copy as title (link)
^Obituary Notes of Astronomers at www.astro.uni-bonn.de
^1947BAN....10..287D Page 287 at articles.adsabs.harvard.edu
^Adriaan, Blaauw (2004). "My Cruise Through the World of Astronomy". Annual Review of Astronomy and Astrophysics. 42 (1): 1–37. Bibcode:2004ARA&A..42....1B. doi:10.1146/annurev.astro.42.053102.134020.
P.C. van der Kruit Willem de Sitter (1872 – 1934) in: History of science and scholarship in the Netherlands.
A. Blaauw, Sitter, Willem de (1872–1934), in Biografisch Woordenboek van Nederland.
Bruce Medal page
Awarding of Bruce Medal: PASP 43 (1931) 125
Awarding of RAS gold medal: MNRAS 91 (1931) 422
de Sitter's binary star arguments against Ritz's relativity theory (1913) 2009-01-29 at the Wayback Machine (four articles)
Obituariesedit
AN 253 (1934) 495/496 (one line)
JRASC 29 (1935) 1
MNRAS 95 (1935) 343
Obs 58 (1935) 22
PASP 46 (1934) 368 (one paragraph)
PASP 47 (1935) 65
January 19, 2024
willem, sitter, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, september, . This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Willem de Sitter news newspapers books scholar JSTOR September 2022 Learn how and when to remove this template message de Sitter redirects here For other uses see de Sitter disambiguation Willem de Sitter 6 May 1872 20 November 1934 was a Dutch mathematician physicist and astronomer Willem de SitterBorn 1872 05 06 6 May 1872Sneek Friesland NetherlandsDied20 November 1934 1934 11 20 aged 62 Leiden South Holland NetherlandsNationalityDutchAlma materGroningen UniversityKnown forde Sitter UniverseScientific careerFieldsPhysicsDoctoral advisorJacobus Kapteyn 1 Doctoral studentsDirk BrouwerWillem Hendrik van den BosSignature Contents 1 Life and work 2 Honours 3 Awards 4 Named after him 5 Family 6 Selected publications 7 See also 8 References 9 External links 9 1 ObituariesLife and work editBorn in Sneek de Sitter studied mathematics at the University of Groningen and then joined the Groningen astronomical laboratory He worked at the Cape Observatory in South Africa 1897 1899 Then in 1908 de Sitter was appointed to the chair of astronomy at Leiden University He was director of the Leiden Observatory from 1919 until his death De Sitter made major contributions to the field of physical cosmology He co authored a paper with Albert Einstein in 1932 in which they discussed the implications of cosmological data for the curvature of the universe He also came up with the concept of the de Sitter space and de Sitter universe a solution for Einstein s general relativity in which there is no matter and a positive cosmological constant This results in an exponentially expanding empty universe De Sitter was also famous citation needed for his research on the motions of the moons of Jupiter 2 Willem de Sitter died after a brief illness in November 1934 3 4 5 Honours editIn 1912 he became a member of the Royal Netherlands Academy of Arts and Sciences 6 Awards editJames Craig Watson Medal 1929 Bruce Medal 1931 Gold Medal of the Royal Astronomical Society 1931 Prix Jules Janssen the highest award of the Societe astronomique de France the French astronomical society 1934 Named after him editThe crater De Sitter on the Moon Asteroid 1686 De Sitter de Sitter universe de Sitter space Anti de Sitter space de Sitter invariant special relativity Einstein de Sitter universe de Sitter double star experiment de Sitter precession de Sitter Schwarzschild metricFamily editOne of his sons Ulbo de Sitter 1902 1980 was a Dutch geologist and one of Ulbo s sons was a Dutch sociologist Ulbo de Sitter 1930 2010 Another son of Willem Aernout de Sitter 1905 15 September 1944 7 was the director of the Bosscha Observatory in Lembang Indonesia then the Dutch East Indies where he studied the Messier 4 globular cluster Selected publications edit nbsp Einstein Ehrenfest Willem de Sitter Eddington and Lorentz in Leiden 1923 De Sitter W 1911 On the bearing of the Principle of Relativity on Gravitational Astronomy Monthly Notices of the Royal Astronomical Society 71 5 388 415 doi 10 1093 mnras 71 5 388 hdl 2027 mdp 39015019246357 De Sitter W 1913 A proof of the constancy of the velocity of light Proceedings of the Royal Netherlands Academy of Arts and Sciences 15 II 1297 1298 Bibcode 1913KNAB 15 1297D Ein astronomischer Beweis fur die Konstanz der Lichtgeschwindigkeit An astronomical proof of the constancy of the speed of light Physikalische Zeitschrift 14 429 1913 On the constancy of the velocity of light Proceedings of the Royal Netherlands Academy of Arts and Sciences 16 I 395 396 1913 De Sitter W 1913 Uber die Genauigkeit innerhalb welcher die Unabhangigkeit der Lichtgeschwindigkeit von der Bewegung der Quelle behauptet werden kann On the accuracy within which the independence of the speed of light from the motion of the source can be asserted Physikalische Zeitschrift 14 1267 Bibcode 1913PhyZ 14 1267D On Einstein s theory of gravitation and its astronomical consequences de Sitter W 1916 07 14 On Einstein s Theory of Gravitation and its Astronomical Consequences First Paper Monthly Notices of the Royal Astronomical Society 76 9 699 728 Bibcode 1916MNRAS 76 699D doi 10 1093 mnras 76 9 699 ISSN 0035 8711 via Oxford University Press de Sitter W 1916 12 08 On Einstein s Theory of Gravitation and its Astronomical Consequences Second Paper Monthly Notices of the Royal Astronomical Society 77 2 155 184 Bibcode 1916MNRAS 77 155D doi 10 1093 mnras 77 2 155 ISSN 0035 8711 via Oxford University Press de Sitter W 1917 11 09 On Einstein s Theory of Gravitation and its Astronomical Consequences Third Paper Monthly Notices of the Royal Astronomical Society 78 1 3 28 Bibcode 1917MNRAS 78 3D doi 10 1093 mnras 78 1 3 ISSN 0035 8711 via Oxford University Press See also edit nbsp Biography portal nbsp Astronomy portal nbsp Physics portalde Sitter double star experiment de Sitter precession de Sitter relativity de Sitter space de Sitter universe Anti de Sitter space The Dreams in the Witch House a story by H P Lovecraft featuring de Sitter and inspired by his lecture The Size of the UniverseReferences edit Willem de Sitter at the Mathematics Genealogy Project Archived copy PDF Archived from the original PDF on 2019 05 25 Retrieved 2019 03 11 a href Template Cite web html title Template Cite web cite web a CS1 maint archived copy as title link Obituary Notes of Astronomers at www astro uni bonn de 1947BAN 10 287D Page 287 at articles adsabs harvard edu Adriaan Blaauw 2004 My Cruise Through the World of Astronomy Annual Review of Astronomy and Astrophysics 42 1 1 37 Bibcode 2004ARA amp A 42 1B doi 10 1146 annurev astro 42 053102 134020 Willem de Sitter 1872 1934 Royal Netherlands Academy of Arts and Sciences Retrieved 19 July 2015 Obituary Notes of Astronomers at www astro uni bonn deExternal links edit nbsp Wikiquote has quotations related to Willem de Sitter nbsp Wikisource has original works by or about Willem de Sitter nbsp Wikimedia Commons has media related to Willem de Sitter O Connor John J Robertson Edmund F Willem de Sitter MacTutor History of Mathematics Archive University of St Andrews P C van der Kruit Willem de Sitter 1872 1934 in History of science and scholarship in the Netherlands A Blaauw Sitter Willem de 1872 1934 in Biografisch Woordenboek van Nederland Bruce Medal page Awarding of Bruce Medal PASP 43 1931 125 Awarding of RAS gold medal MNRAS 91 1931 422 de Sitter s binary star arguments against Ritz s relativity theory 1913 Archived 2009 01 29 at the Wayback Machine four articles Obituaries edit AN 253 1934 495 496 one line JRASC 29 1935 1 MNRAS 95 1935 343 Obs 58 1935 22 PASP 46 1934 368 one paragraph PASP 47 1935 65 Retrieved from https en wikipedia org w index php title Willem de Sitter amp oldid 1187373465, wikipedia, wiki, book, books, library,
