Emeritus Professor of Astrophysics, Department of Physics, University of Athens, Greece. He was born in Filiatra, Messinias on the 29th of July, 1951. He obtained his B.Sc. in Physics from the Aristotle University of Thessaloniki (1974) and the M.Sc. in Physics (1976) and the Ph.D. from the University of Chicago, U.S.A. He has worked as Research Associate at the Enrico Fermi Institute, Univ. of Chicago (1980-1981) and at the Harvard University (1981-1983) where he worked as a Lecturer (1983-84) before elected as Assistant Professor at the Department of Physics, University of Crete (1984-1988). He worked at the University of Crete as Associate Professor at the Department of Physics
(1988-1997) and as Professor, (1997-2001) before
elected at his present position. He served as the President of the National Observtory of Athens from 2011 until 2016. He has worked as
Visiting Professor at the University of St-Andrews
(UK, 1991-1992), at the University of Torino (Italy)
(1992) and at the Katholieke Universiteit Leuven,
(Belgium) (1996), and as Visiting Scientist at the
Observatoire de Paris (France) (1991-1992). For
two years (1989 -2001) he has worked also as a
Researcher at the Foundation for Research and
Technology Hellas (FORTH), IESL. His scientific
interests include Plasma Astrophysics,
Magnetohydrodynamics, Cosmical Magnetic
Fields, Solar Physics, Solar and Stellar Winds, Accretion Disks, Star Formation, Cosmic Jets, Active Galactic Nuclei, Quasars, Black Holes, Plasma Equilibrium and Stability, Nonlinear Differential Equations and Space Instrumentation. He has published over 100 scientific papers in refereed journals and more than 100 papers in conference proceedings and special volumes / books. He has published three textbooks: “Classical Mechanics” (2002), “Introduction to Theoretical Mechanics” (2004) and “Plasma Physics/ Astrophysics” (2005). He is a member of the Hellenic National Committee for Astronomy (2002 -), Hellenic Delegate to ESA’s Science Program Committee (2004 -) and Member of the Hellenic Council for Research & Technology–Physics, Chemistry, Materials (2004 -). He is a member of the American Physical Society, of the American Astronomical Society, of the International Astronomical Union (IAU) and a Founding member, Secretary (2002- 2006) and President (2006-2010) of the Hellenic Astronomical Society (Hel.A.S.).
Alexandros K. Tsioumis was born in Tsotili, Kozani on March 28, 1937, where he spent his student years. In 1954 he graduated from Tsotiliou High School and came to the Aristotle University of Thessaloniki to study Physics . After obtaining his degree in 1959 and after completing his military service (1959-1961) as a hoplite topographer, he worked as a high school teacher of physics at the American College "Anatolia" (1961-1963). In 1963, he started postgraduate studies at the "Demokritos" nuclear research center in the field of nuclear physics. In November 1965 he was appointed assistant at the Laboratory of Geodetic Astronomy of the Polytechnic School of the Aristotle University of Thessaloniki, where he worked under the supervision of Professor L. N. Mavridis. In 1971 he received his educational leave and until 1973 he was in Heidelberg, then West Germany, where he was a research associate of the "Astronomisches Recheninstitut". After his return to Greece, he completed his doctoral dissertation entitled "Contribution to the study of the spiral structure of the galaxy with the help of red stars", which he submitted to the School of Physics and Mathematics. Short. He was awarded a doctorate in May 1974. In 1982, he joined as Lecturer the Department of Geodesy and Topography of the Department of Agronomy and Surveying Engineering of the Polytechnic School of the Aristotle University of Thessaloniki. In February 1973, he was transferred to the position of part time research associate of the Laboratory of Geodetic Astronomy, and in 1979 he became a full-time research associate of the Polytechnic School of the Aristotle University of Thessaloniki. In the spring of 1984 he was elected Permanent Assistant Professor, in the winter of 1987 an Associate Professor and in 1991 a Professor. He authored four books and 45 scientific papers. Throughout this course he is accompanied by Chrysanthi Mavropoulou-Tsioumi with whom he had two children. He passed away on Friday, October 25, 2002.
An extended biography in Greek is available at