Gnatyk [Hnatyk, Gnatik] Bogdan Ivanovich General data:
Born: 22.01.1952
Place of birth: Berezhanka village, Borshchiv district, Ternopil region, Ukrainian SSR
Studied in: Ivan Franko Lviv State University (since 1999 Ivan Franko Lviv National University) (1969-1974);
Key interests: astrophysics, extragalactic astronomy. PhD Thesis: Physics of shock waves and the laws of their movement in the shells of stars (1983 Main Astronomical Observatory of the Academy of Sciences of Ukrainian SSR); ScD Thesis: Non-stationary high-temperature processes and shock waves in space plasma (1997 Main Astronomical Observatory of the National Academy of Sciences of Ukraine);
Biography:
He was born on January 22, 1952 in the Berezhanka village of Borshchiv district of Ternopil region of Ukrainian SSR.
In 1969 he graduated with a gold medal from high school in Sambor, Lviv region.
In 1974 he graduated from the Faculty of Physics of Ivan Franko Lviv State University, where he entered the Faculty of Physics in 1969. He received a diploma with honors.
After graduating from university and serving in the Soviet Army during 1974-1976, he joined the outstanding mathematician prof. Skorobogatko V. Ya. a group of young scientists who worked at the intersection of problems of physics and mathematics, at the Institute of Applied Problems of Mechanics and Mathematics named after Ya. S. Pidstryhach NAS of Ukraine (Lviv). He worked as an engineer. Here, during 1976-2001, during his career as a scientist, he reached the position of a leading researcher.
In 1983 he defended his dissertation "Physics of shock waves and patterns of their motion in the shells of stars" at the Main Astronomical Observatory of the Academy of Sciences of the Ukrainian SSR. The work was performed by the Institute of Applied Problems of Mechanics and Mathematics of the Academy of Sciences of the Ukrainian SSR in the department headed by V. Ya. Skorobogatko. His supervisor was prof. I. A. Klimyshyn.
In 1993-1994 (according to some sources up to and including 1996) , the scientist was the scientific director of the Ukrainian part of the international space project "Spectrum-Roentgen-Gamma".
Since 1996, he has worked part-time as an associate professor of astrophysics at Ivan Franko Lviv National University.
During 2001-2004 he worked as the director of the Astronomical Observatory of the Taras Shevchenko National University of Kyiv, during 2004-2008 he was the head (director) of the Research Laboratory "Astronomical Observatory" of the Taras Shevchenko Kyiv National University, since 2008 he is a leading researcher at the Astronomical Observatory.
In 1997 he defended his doctoral dissertation at the Main Astronomical Observatory of the National Academy of Sciences of Ukraine: "Nonstationary high-temperature processes and shock waves in space plasma."
In 1999 he was among the co-authors awarded the prize of the National Academy of Sciences of Ukraine named after MP Barabashov for a series of works "Development of methods of multidimensional gas dynamics and their application to current problems of modern astrophysics."
In 2006, with the joint efforts of the Bogolyubov Institute of Theoretical Physics of the National Academy of Sciences of Ukraine and the Taras Shevchenko Kyiv National University and with the financial support of the Geneva Observatory and INTEGRAL Science Data Center (ISDC), a virtual X-ray and X-ray machine was created. (VIRGO project). BI Hnatyk was a representative of the Astronomical Observatory, S.Y. Vilchynsky was a representative of the Department of Quantum Field Theory of the Taras Shevchenko Kyiv National University, and Yu.V. Shtanov represented the Bogolyubov Institute of Theoretical Physics of the National Academy of Sciences of Ukraine. On the basis of this observatory a new modern direction of astronomical research is developing - high-energy astrophysics. The observatory processes data from space missions in the rigid range of radiation. On the basis of such studies, according to the observations of modern space missions (INTEGRAL, XMM-Newton), the brightness curves of the active nuclei of galaxies (ANS) in the X-ray range are constructed.
In 2009 he was elected a member of the Council of the Ukrainian Astronomical Association.
He is a member of the section "Nuclear Physics, Radiophysics and Astronomy" at the Ministry of Education, Science, Youth and Sports of Ukraine. The scientist is a member of the editorial boards of 3 scientific journals "Kinematics and Physics of Celestial Bodies", "Bulletin of the Taras Shevchenko Kyiv National University. Astronomy" and "Journal of Physical Research".
The field of his scientific activity is high-energy astrophysics, mechanisms of acceleration of cosmic rays of ultrahigh energies, extragalactic astronomy. A large series of works by the scientist is devoted to the theoretical analysis of the formation of large-scale structures such as the Astronomer. He is the author of more than 178 scientific works, including 81 scientific articles and 4 monographs. , The Astronomical Observatory of the Jagiellonian University in Poland, the Fermi National Laboratory and the Taft University in the USA. He developed multidimensional methods of hydrodynamics for modeling nonstationary high-temperature processes and the dynamics of shock waves in space plasma. He co-authored a new mechanism for generating gamma-ray bursts and accelerating cosmic rays of ultrahigh energies with loops of superconducting cosmic strings. He co-authored a proton model of cosmic rays of ultrahigh energies. Under his supervision 5 candidate dissertations were defended, he is a scientific consultant of one doctoral dissertation.
He was a member of the International Eurasian Astronomical Society until 2008, is a member of the European Astronomical Society and the International Astronomical Union, is a member of the Taras Shevchenko Scientific Society in Lviv city.
Participates in the process of popularization of astronomy and astrophysics among young people, in particular, schoolchildren. Several times, in particular in 2008, he was the chairman of the All-Ukrainian competition-defense of research works of students-members of the Small Academy of Sciences in the section "astronomy" and a member of the commission of the section "astronomy and astrophysics" in 2019. selection and training meetings of candidates for student teams of Ukraine to participate in international student competitions in astronomy, for example, in 2013 and 2014.
Main publications:
1. Марченко В., Гнатик Б. Колімація релятивістських та нерелятивістських ударних хвиль в середовищі з великомасштабним градієнтом густини // Вісник Астрон. Школи. - 2003. - Т.4. - №2. - С. 104-111.
2. Марченко В.В., Гнатик Б.І. Гідродинамічна колімація релятивістських струменів при спалахах гіпернових зір // Вісник КНУ, Астрономія. -2005.-№41-42.-С.21-24.
3. Marchenko V.V., Hnatyk B.I. Relativistic shock break out at the surface of hypernova star // Odessa Astronomical Publications. - 2004 - v. 17. - P.48-50.
4. Гнатик Б.І., Марченко В.В. Спостережні прояви виходу релятивістської ударної хвилі на поверхню Гіпернової зорі // КФНТ. - 2006. - Т.22, № 2, с.125-137.
Sources:
1 ukrastro.org
2 Астрономiчна обсерваторiя Київського національного університету імені Тараса Шевченка Інформація про ввідділи та співробітників
3 uk.wikipedia.org
4 Астрономічна обсерваторія Київського університету
