Viktor Ambartsumian

Picture of Viktor Ambartsumian

Date of Birth: 09/18/1908

Age: 87

Place of birth: Tiflis (today - Tbilisi)

Citizenship: Russia


HAMBARDZUMYAN Amazaspovich Victor (1908-96), the Russian astrophysicist, academician (1943) and President (in 1947-93), Armenian Academy of Sciences, academician of the USSR (1953), twice Hero of Socialist Labor (1968, 1978). Founder and Director of the Byurakan Astrophysical Observatory Oria (1946).

In 1930 with DD Ivanenko suggested in the nucleus having only heavy particles and explained the process of electron emission nuclei as their "birth" by analogy with the emission of photons, with him also developed (1930) theory of discrete space-time. Considered in general radiative transfer problem, which is of great importance for astrophysics.

One of the founders of theoretical astrophysics. Works on the cosmogony of stars and galaxies, stellar dynamics, variable stars, gaseous nebulae. For the first time gave a presentation about the patchy structure of the absorbing material in the Galaxy and, on this basis, he developed a theory of the brightness fluctuations of the Milky Way. Laid the foundations of statistical mechanics of stellar systems, in particular, set the duration of the life of the galaxy no more 1010

years. He opened (1947) and explored a new type of stellar systems (stellar associations) than proved that the process of star formation in the universe continues at the present time. By the hypothesis of the origin of the co-stars and diffuse nebulae their dense bodies nonstellar nature. He developed the theory of baryon stars, which exceeds the nuclear density.

First developed the idea of ??cosmogonic activity of galactic nuclei, which determines the most important non-stationary processes in the evolution of galaxies - giant explosions, the release of large masses of material, the powerful radio emission, etc. In particular, on the basis of this idea, I have shown that radio galaxies - not the result of an accidental collision of two galaxies, as did after their discovery, and the active stage of the evolution of galaxies. Expressed new look at the sources of energy star, for example, in favor of netermoyadernoy nature of stellar energy.

USSR State Prize (1946, 1950). Gold Medal. University of Sciences of the USSR (1971). The Russian Federation State Prize (1995).