astro.wikisort.org - Researcher

Viktor Sergeevich Safronov (Russian: Ви́ктор Серге́евич Сафро́нов) (born Velikie Luki; 11 October 1917 in Russia – 18 September 1999 in Moscow, Russia) was a Soviet astronomer who put forward the low-mass-nebula model of planet formation, a consistent picture of how the planets formed from a disk of gas and dust around the Sun.

Biography and legacy

Safronov graduated from Moscow State University Department of Mechanics and Mathematics in 1941. He defended a dissertation for the Doctor of Physical and Mathematical Sciences in 1968. His scientific interests covered planetary cosmogony, astrophysics and geophysics.

His planetesimal hypothesis of planet formation is still widely accepted among astronomers, although alternative theories exist (such as the gravitational fragmentation of the protoplanetary disk directly into planets).

A minor planet, 3615 Safronov, discovered by US-American astronomer Edward L. G. Bowell in 1983, is named after him.[1]

The 1999 BBC documentary miniseries The Planets discusses Safronov's work at length.

Awards

• Otto Schmidt USSR Academy of Sciences Prize (1974)
• Leonard Prize Meteoritical Society (1989)
• Kuiper Prize in Planetary Science (1990)

List of selected publications

• Evolution of the Protoplanetary Cloud and Formation of the Earth and the Planets. Moscow: Nauka Press, 1969. Trans. NASA TTF 677, 1972.

See also

• Accretion (astrophysics)
• George Wetherill

References

External links

• List of Gerard Kuiper award recipients at the website of American Astronomical Society
• (in Russian) A short biography

На других языках

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[de] Wiktor Sergejewitsch Safronow

Wiktor Sergejewitsch Safronow (russisch Виктор Сергеевич Сафронов; * 11. Oktoberjul. / 24. Oktober 1917greg. in Welikije Luki; † 18. September 1999 in Moskau) war ein russischer Physiker und Astronom.[1][2][3][4]

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- [en] Viktor Safronov

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[fr] Viktor Safronov

Viktor Sergueïevitch Safronov (en russe : Виктор Сергеевич Сафронов ; 11 octobre 1917, Velikie Louki, Russie – 18 septembre 1999, Moscou, Russie) est un astrophysicien de l'ex-URSS qui a été l'auteur d'une théorie de la formation des planètes à partir d'un disque de gaz et de poussière présent autour du Soleil[1].

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[it] Viktor Sergeevič Safronov

Viktor Sergeevič Safronov in russo: Виктор Сергеевич Сафронов? (Velikie Luki, 11 ottobre 1917 – Mosca, 18 settembre 1999) è stato un astronomo russo, che ha sviluppato il modello della nebulosa solare per la formazione planetaria.

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[ru] Сафронов, Виктор Сергеевич

Ви́ктор Серге́евич Сафро́нов (11 октября 1917, Великие Луки — 18 сентября 1999, Москва) — советский и российский астроном, автор теории формирования планет.

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