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Samuil Kaplan and the development of astrophysical research at the Lviv University
Samuil Kaplan (1921–1978) was a productive and famous astrophysicist. He was affiliated with a number of scientific centers in different cities of former Soviet Union. The earliest 13 years of his career, namely in the 1948–1961 years, he worked in Lviv University in Ukraine (then it was called the...
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Published in: | European physical journal H 2022-12, Vol.47 (1), Article 12 |
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description | Samuil Kaplan (1921–1978) was a productive and famous astrophysicist. He was affiliated with a number of scientific centers in different cities of former Soviet Union. The earliest 13 years of his career, namely in the 1948–1961 years, he worked in Lviv University in Ukraine (then it was called the Ukrainian Soviet Socialist Republic). In the present paper, the Lviv period of his life and scientific activity is described on the basis of archival materials and his published studies. Kaplan arrived in Lviv in June 1948, at the same month when he obtained the degree of Candidate of science. He was a head of the astrophysics sector at the Astronomical Observatory of the University, was a professor of department for theoretical physics as well as the founder and head of a station for optical observations of artificial satellites of Earth. He was active in the organization of the astronomical observational site outside of the city. During the years in Lviv, Kaplan wrote more than 80 articles and 3 monographs in 9 areas. The focus of his interests at that time was on stability of circular orbits in the Schwarzschild field, on white dwarf theory, on space gas dynamics, and cosmic plasma physics, and turbulence, on acceleration of cosmic rays, on physics of interstellar medium, on physics and evolution of stars, on cosmology and gravitation, and on optical observations of Earth artificial satellites. Some of his results are fundamental for development of theory in these fields as well as of observational techniques. The complete bibliography of his works published during the Lviv period is presented. Respective scientific achievements of Samuil Kaplan are reviewed in the light of the current state of research in these areas. |
doi_str_mv | 10.1140/epjh/s13129-022-00045-w |
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He was affiliated with a number of scientific centers in different cities of former Soviet Union. The earliest 13 years of his career, namely in the 1948–1961 years, he worked in Lviv University in Ukraine (then it was called the Ukrainian Soviet Socialist Republic). In the present paper, the Lviv period of his life and scientific activity is described on the basis of archival materials and his published studies. Kaplan arrived in Lviv in June 1948, at the same month when he obtained the degree of Candidate of science. He was a head of the astrophysics sector at the Astronomical Observatory of the University, was a professor of department for theoretical physics as well as the founder and head of a station for optical observations of artificial satellites of Earth. He was active in the organization of the astronomical observational site outside of the city. During the years in Lviv, Kaplan wrote more than 80 articles and 3 monographs in 9 areas. The focus of his interests at that time was on stability of circular orbits in the Schwarzschild field, on white dwarf theory, on space gas dynamics, and cosmic plasma physics, and turbulence, on acceleration of cosmic rays, on physics of interstellar medium, on physics and evolution of stars, on cosmology and gravitation, and on optical observations of Earth artificial satellites. Some of his results are fundamental for development of theory in these fields as well as of observational techniques. The complete bibliography of his works published during the Lviv period is presented. 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He was affiliated with a number of scientific centers in different cities of former Soviet Union. The earliest 13 years of his career, namely in the 1948–1961 years, he worked in Lviv University in Ukraine (then it was called the Ukrainian Soviet Socialist Republic). In the present paper, the Lviv period of his life and scientific activity is described on the basis of archival materials and his published studies. Kaplan arrived in Lviv in June 1948, at the same month when he obtained the degree of Candidate of science. He was a head of the astrophysics sector at the Astronomical Observatory of the University, was a professor of department for theoretical physics as well as the founder and head of a station for optical observations of artificial satellites of Earth. He was active in the organization of the astronomical observational site outside of the city. During the years in Lviv, Kaplan wrote more than 80 articles and 3 monographs in 9 areas. The focus of his interests at that time was on stability of circular orbits in the Schwarzschild field, on white dwarf theory, on space gas dynamics, and cosmic plasma physics, and turbulence, on acceleration of cosmic rays, on physics of interstellar medium, on physics and evolution of stars, on cosmology and gravitation, and on optical observations of Earth artificial satellites. Some of his results are fundamental for development of theory in these fields as well as of observational techniques. The complete bibliography of his works published during the Lviv period is presented. Respective scientific achievements of Samuil Kaplan are reviewed in the light of the current state of research in these areas.</description><subject>Acceleration</subject><subject>Artificial satellites</subject><subject>Astronomy</subject><subject>Astrophysics</subject><subject>Astrophysics and Cosmology</subject><subject>Celestial bodies</subject><subject>Circular orbits</subject><subject>Cosmic plasma</subject><subject>Cosmic rays</subject><subject>Cosmology</subject><subject>Gas dynamics</subject><subject>Helium</subject><subject>History and Philosophical Foundations of Physics</subject><subject>History of Science</subject><subject>Interstellar matter</subject><subject>Measurement Science and Instrumentation</subject><subject>Orbital stability</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Plasma physics</subject><subject>Quantum Physics</subject><subject>Regular Article</subject><subject>Satellite observation</subject><subject>Stellar evolution</subject><subject>Theoretical physics</subject><subject>White dwarf stars</subject><issn>2102-6459</issn><issn>2102-6467</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNqFkMtOwzAQRS0EElXpN2CJdejYcZJ6iSpeohIS0LXl2hOSKk2CnabK3-M2CJasZhb33BkdQq4Z3DImYI7ttph7FjMuI-A8AgCRRIczMuEMeJSKNDv_3RN5SWbeb0MIYhnDIp2Qt3e925cVfdFtpWuqa0u7AqnFHqum3WHd0San2neuaYvBl0ZX1KFH7UxBdXcKr_qyp-u67NH5shuuyEWuK4-znzkl64f7j-VTtHp9fF7erSLDF9BFGUNIUDMmDVqpw48gE8tBSME4WmGlNJtU5NYayWIjN3yTZEl4nFsNGEM8JTdjb-uarz36Tm2bvavDScWzjEEqU8FCKhtTxjXeO8xV68qddoNioI4O1dGhGh2q4FCdHKpDIBcj6QNRf6L76_8P_QYOg3it</recordid><startdate>20221201</startdate><enddate>20221201</enddate><creator>Novosyadlyj, B.</creator><creator>Hnatyk, B.</creator><creator>Kulinich, Yu</creator><creator>Melekh, B.</creator><creator>Petruk, O.</creator><creator>Plyatsko, R.</creator><creator>Tsizh, M.</creator><creator>Vavrukh, M.</creator><creator>Virun, N.</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0003-1621-0873</orcidid></search><sort><creationdate>20221201</creationdate><title>Samuil Kaplan and the development of astrophysical research at the Lviv University</title><author>Novosyadlyj, B. ; Hnatyk, B. ; Kulinich, Yu ; Melekh, B. ; Petruk, O. ; Plyatsko, R. ; Tsizh, M. ; Vavrukh, M. ; Virun, N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c280t-71e05ea119ced9a210095d2049412ed4d99cb64fddc913c9b2b5750392da0e303</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Acceleration</topic><topic>Artificial satellites</topic><topic>Astronomy</topic><topic>Astrophysics</topic><topic>Astrophysics and Cosmology</topic><topic>Celestial bodies</topic><topic>Circular orbits</topic><topic>Cosmic plasma</topic><topic>Cosmic rays</topic><topic>Cosmology</topic><topic>Gas dynamics</topic><topic>Helium</topic><topic>History and Philosophical Foundations of Physics</topic><topic>History of Science</topic><topic>Interstellar matter</topic><topic>Measurement Science and Instrumentation</topic><topic>Orbital stability</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Plasma physics</topic><topic>Quantum Physics</topic><topic>Regular Article</topic><topic>Satellite observation</topic><topic>Stellar evolution</topic><topic>Theoretical physics</topic><topic>White dwarf stars</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Novosyadlyj, B.</creatorcontrib><creatorcontrib>Hnatyk, B.</creatorcontrib><creatorcontrib>Kulinich, Yu</creatorcontrib><creatorcontrib>Melekh, B.</creatorcontrib><creatorcontrib>Petruk, O.</creatorcontrib><creatorcontrib>Plyatsko, R.</creatorcontrib><creatorcontrib>Tsizh, M.</creatorcontrib><creatorcontrib>Vavrukh, M.</creatorcontrib><creatorcontrib>Virun, N.</creatorcontrib><collection>CrossRef</collection><jtitle>European physical journal H</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Novosyadlyj, B.</au><au>Hnatyk, B.</au><au>Kulinich, Yu</au><au>Melekh, B.</au><au>Petruk, O.</au><au>Plyatsko, R.</au><au>Tsizh, M.</au><au>Vavrukh, M.</au><au>Virun, N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Samuil Kaplan and the development of astrophysical research at the Lviv University</atitle><jtitle>European physical journal H</jtitle><stitle>EPJ H</stitle><date>2022-12-01</date><risdate>2022</risdate><volume>47</volume><issue>1</issue><artnum>12</artnum><issn>2102-6459</issn><eissn>2102-6467</eissn><abstract>Samuil Kaplan (1921–1978) was a productive and famous astrophysicist. 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The focus of his interests at that time was on stability of circular orbits in the Schwarzschild field, on white dwarf theory, on space gas dynamics, and cosmic plasma physics, and turbulence, on acceleration of cosmic rays, on physics of interstellar medium, on physics and evolution of stars, on cosmology and gravitation, and on optical observations of Earth artificial satellites. Some of his results are fundamental for development of theory in these fields as well as of observational techniques. The complete bibliography of his works published during the Lviv period is presented. Respective scientific achievements of Samuil Kaplan are reviewed in the light of the current state of research in these areas.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1140/epjh/s13129-022-00045-w</doi><orcidid>https://orcid.org/0000-0003-1621-0873</orcidid></addata></record> |
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subjects | Acceleration Artificial satellites Astronomy Astrophysics Astrophysics and Cosmology Celestial bodies Circular orbits Cosmic plasma Cosmic rays Cosmology Gas dynamics Helium History and Philosophical Foundations of Physics History of Science Interstellar matter Measurement Science and Instrumentation Orbital stability Physics Physics and Astronomy Plasma physics Quantum Physics Regular Article Satellite observation Stellar evolution Theoretical physics White dwarf stars |
title | Samuil Kaplan and the development of astrophysical research at the Lviv University |
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