Boris Wassiljewitsch Numerow

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BW Numerow

Boris Numerov ( Russian Борис Васильевич Нумеров ; born January 17 . Jul / 29. January  1891 greg. In Novgorod , Russian Empire ; † 15. () September? 1941 in Oryol , Soviet Union ) was a Russian astronomer and geophysicist .

biography

Numerow was a corresponding member of the Russian Academy of Sciences , from 1913 to 1915 observer at the Pulkovo Observatory , from 1915 to 1925 astronomer at the University of Leningrad and from 1924 to 1937 professor of astronomy at the University of Leningrad.

Numerow was arrested on the night of October 21-22, 1936 as part of the Great Terror and sentenced to ten years in prison on May 25, 1937 for espionage, sabotage and conspiracy against the Soviet government. He was accused of being a spy on behalf of Germany because the German astronomer Karl Wilhelm Reinmuth had named the asteroid (1206) Numerowia after him. Presumably on September 15, 1941, he was shot in Oryol prison. He was rehabilitated in 1957.

A lunar crater with a diameter of 113 km (coordinates 70 ° 42 'S 160 ° 42' W) also bears the name Numerows .

Scientific work

In the 1920s, Numerow developed an iterative method for determining the orbit of celestial bodies on the basis of Gauss ' indirect method for solving the two-body problem . His special achievement is to have disruptive influences of other celestial bodies included in the calculation from the start, while the other methods based on the Gaussian method require an intermediate step in orbit improvement.

In 1927 he published an optimized method for solving ordinary differential equations (GDGL) of the second order in connection with boundary value problems .

Publications

  • Méthode nouvelle de la détermination de orbites et le calcul des éphémerides en tenant compte des perturbations. , Publ. De l'Observatoire astrophysique central de Russie 2. Moscow 1923
  • Sur la détermination des élements. , Bulletin de l'Inst. astron. de Leningrad 8.49. 1925
  • Orbit determination using the method of varying the heliocentric coordinates. , Bulletin de l'Inst. astron. de Leningrad 10.69. 1926

literature

  • LM Lazarew: 1937: An Eyewitness Account. In: Alexander Solzhenitsyn (Ed.): Voices from the Gulag. Northwestern University Press, Evanston 2010, ISBN 0-810-12655-9
  • Karl Stumpff: Celestial Mechanics . Volume I, VEB Deutscher Verlag der Wissenschaften Berlin 1959
  • Gérard Sookahet, La Méthode de Numerov pour Résoudre les Equations Différentielles du 2nd Ordre . 2006, PDF

Web links

Individual evidence

  1. ^ Karl Stumpff : Himmelsmechanik , Volume 1, p. 433
  2. ↑ Stefan Gerlach: Boundary Value Problems , pp 195-207. Computer physics series, Springer-Verlag Berlin-Heidelberg 2016
personal data
SURNAME Numerow, Boris Wassiljewitsch
ALTERNATIVE NAMES Нумеров, Борис Васильевич (Russian)
BRIEF DESCRIPTION Russian astronomer and geophysicist
DATE OF BIRTH January 29, 1891
PLACE OF BIRTH Novgorod
DATE OF DEATH uncertain: September 15, 1941
Place of death Oryol