Sjur Refsdal (30 December 1935 – 29 January 2009) was a Norwegian astrophysicist, born in Oslo. He is best known for his pioneer work on gravitational...
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cluster MACS J1149+2223. It was named after Norwegian astrophysicist Sjur Refsdal, who, in 1964, first proposed using time-delayed images from a lensed...
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politician Sjur Loen (born 1958), Norwegian curler and world champion Sjur Røthe (born 1988), Norwegian cross-country skier Sjur Refsdal (1935–2009)...
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much more likely to be observed. In 1963 Yu. G. Klimov, S. Liebes, and Sjur Refsdal recognized independently that quasars are an ideal light source for the...
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established with works by Yu Klimov (1963), Sidney Liebes (1964), and Sjur Refsdal (1964). Gravitational lensing was first observed in 1979, in the form...
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Chang–Refsdal lens is a point-mass gravitational lens (e.g. black hole) perturbed by constant external shear. The name derives from Kyongae Chang and Sjur Refsdal...
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applications of graphene. Gravitational microlensing In 1979, Kyongae Chang and Sjur Refsdal pointed out that a single star (a 'microlens') in a lens galaxy can cause...
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Chiu coins the term "'quasar" for quasi-stellar radio sources. 1964 – Sjur Refsdal suggests that the Hubble constant could be determined using gravitational...
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Chandrasekhar limit, number – Subrahmanyan Chandrasekhar Chang–Refsdal lens – Kyongae Chang and Sjur Refsdal Chaplygin gas – Sergey Alexeyevich Chaplygin Charles's...
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Awards Preceded by Olav Smidsrød Recipient of the Fridtjof Nansen Excellent Research Award in Science 2001 (with Sjur Refsdal) Succeeded by Knut Aukland...
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Pedersen, politician (b. 1928) 29 January – Olaf Øen, politician (b. 1925) Sjur Refsdal, astronomer (b. 1935) 31 January – Arne E. Holm, artist and architect...
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Awards Preceded by Jon Storm-Mathisen Sjur Refsdal Recipient of the Fridtjof Nansen Excellent Research Award in Science 2002 Succeeded by Per Brandtzæg...
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John Gray Recipient of the Fridtjof Nansen Excellent Research Award in Science 2000 (with Kjell B. Døving) Succeeded by Sjur Refsdal Jon Storm-Mathisen...
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December – Kåre Venn, forest pathologist (died 2024). 30 December – Sjur Refsdal, astrophysicist (died 2009) 19 January – Martin Olsen Nalum, politician...
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2000 Kjell B. Døving, physiologist 2000 Olav Smidsrød, chemist 2001 Sjur Refsdal, astrophysicist 2001 Jon Storm-Mathisen, anatomist 2002 Knut Aukland...
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1874-1885: H.M. Meyer 1886-1897: Anfin Refsdal 1898-1898: Olav G. Tryti 1899-1901: Svein Aase 1902-1907: Anfin Refsdal 1908-1919: Nikolai Erdal 1920-1922:...
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in Kongsvinger – 1996), an American author, editor, and translator Pål Refsdal (born 1963 in Kongsvinger), a freelance journalist, photographer, and filmmaker...
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