Ikhsanov Robert Nazifovich General data:
Born: 05.08.1930
Place of birth: Birsk city, Bashkir Autonomous Soviet Socialist Republic
Studied in: A. A. Zhdanov Leningrad Order of Lenin State University (since 1991 St. Petersburg State University) (1953);
Key interests: astrophysics, solar physics, instruments and devices, nebulae and galaxies
Biography:
He was born on August 5, 1930 in Birsk city of Bashkir Autonomous Soviet Socialist Republic.
In 1953 he graduated from the Leningrad Order of Lenin State University named after AA Zhdanov with a degree in astronomy.
Since 1959, after studying at the graduate school of the Crimean Astrophysical Observatory of the USSR Academy of Sciences, he worked at the Main (Pulkovo) Astronomical Observatory of the USSR Academy of Sciences in various positions, going from junior to chief researcher. He headed the department and sector of solar physics of the Main Astronomical Observatory of the USSR Academy of Sciences.
Since 1967 he has been a member of the International Astronomical Union.
In 1977 he received a doctorate in physical and mathematical sciences.
The main scientific research is related to astrophysics of stars and nebulae and solar physics. Author of more than 170 scientific papers, co-author of one monograph.
In 1960, he constructed a diagram of the joint evolution of stars of early spectral classes in open clusters and expanding nebulae, which defines two evolutionary tracks: 1) for individual clusters; 2) for the galaxy.
Subsequent works by R. N. Ihsanov were devoted to the study of patterns of structure and development of sunspots. In 1964, he showed that the divergent motions observed in bipolar groups of spots can be explained by the rise of the magnetic field from under the photosphere (with an average velocity of 115±30 m/s), and the increase in magnetic field strength and spot area is determined by increasing vertical component. fields in the magnetic harness at its outflow.
In 1966 R. N. Ikhsanov, together with the chief designer Yu. P. Platonov, created the Pulkovo six-channel magnetograph of the full vector of the magnetic field.
Based on the analysis of images obtained at the Stratospheric Solar Observatory, he proposed in 1972 a hierarchical system of scales of magnetic harnesses with the smallest tubes with a diameter of -1000 km, which explains the fine structure of the observed shadow.
and penumbra sunspots. Later, in 1975, this system of scales in the spot was included in the general system of scales found on the surface of the Sun.
In the early 1980s, R. N. Ikhsanov developed a dynamic classification of groups of spots by type of spatial interaction of pop-up magnetic complexes and showed that powerful solar flares, especially proton, occur in classes I, II, III of the proposed classification according to three types of δ-configurations.
In the 1970s and 1980s, together with Yu. I. Vitinsky, and later with V. G. Ivanov, studied the peculiarities of the Sun's rotation in different phases of 11-year cycles and determined their dependence on the predominant type of change in the magnetic field.
Sources:
1 Àñòðîíîìû Ðîññèè 1917-2017/ íàó÷. ðåä. À.Ì.×åðåïàùóê, Êàçàíü, Êàçàí. ôåä. óí-ò, 2017.- 568ñ- C. 200
