FLEROV 106 



of the sky during the day, and the luminescence of the sky during 

 the night. He introduced a hypothesis of corpuscular photogene- 

 sis of stars and developed a criterion of the influx stability of 

 celestial bodies, thus explaining the peculiar structure of the 

 solar system and the formation and evolution of galactic nebu- 

 lae. Fesenkov also advanced the hypothesis of star formation 

 from the interstellar gas and dust medium. He is the author of 

 numerous popular publications in the field of cosmogony. 



As of 1961, Fesenkov was Chairman of the U.S.S.R. Academy 

 of Sciences Committee on Meteorites and Director of the Astro- 

 physical Institute of Kazakh S.S.R. Academy of Sciences. 

 Bibliography: 



La lumiere Zodiacale. These de doctorat. Petersburg: 



1914. 



Cosmogony problems in modern astronomy. Astron. Zhur., 



1949, 26, #2. 



The atmospheric shadow of the earth. Astron. Zhur., 1949, 



26, #4. 



Corpuscular radiation, a factor in the evolution of the sun 



and the stars (Paper presented at the VIII International 



Congress of the Astronomical Association in Rome, Sept. 



1952). Moscow: 1952. 



and D. A. Rozhkovskii . Star formation from the filaments of 



gaseous and dust nebulae. Astron. Zhur., 1952, 29, #4. 

 Office: Astrophysics Institute of Academy of Sciences 



Kazakh SSR 

 Shevchenko Ulitsa, 28 

 Alma-Ata, Kazakh SSR 



FLEROV, GEQRGII NIKQLAEVICH (Physicist) 



G. N. Flerov was born March 2, 1913. After graduating from 

 the Leningrad Industrial Institute, he worked at the Leningrad 

 Physico-Technical Institute. From 1944 he worked in several 

 departments of the U.S.S.R. Academy of Sciences, and is work- 

 ing at the Joint Institute of Nuclear Research. In 1953 Flerov 

 was elected a Corresponding Member of the U.S.S.R. Academy 

 of Sciences. He has been a member of the Communist Party of 

 the Soviet Union since 1955. In 1946 he was awarded a Stalin 

 Prize. 



Flerov works in nuclear physics and cosmic rays. He in- 

 vestigated the energy dependence of cross section radiative- 

 capture of slow neutrons. In 1940, with L. I. Rusinov, Flerov 

 showed that during nuclear fission there is emission of second- 

 ary neutrons. In the same year, together with K. A. Petrzhak, 



