Hans Michael Maitzen
country of citizenship: Austria
languages spoken, written or signed: Esperanto
occupation: astronomer, Esperantist
position held: President of the World Esperanto Youth Organization
Hans Michael Maitzen (born 28 March 1943 in Graz) is an Austrian astronomer.
After elementary (1949-1953) and secondary school attendance (1953-1961) in Graz, he began studying astronomy, mathematics and physics at the University of Graz in 1961, completing a PhD in astronomy in July 1967. During the last three years of his studies he was also a scientific assistant at the Institute for Astronomy at the University of Graz.Thereafter he was a scientific assistant at the Institute of Astronomy of the University of Bochum from 1969 until 1976. From then till 1985 he was scientific assistant in the Institute of Astronomy at the University of Vienna. In March 1980 Maitzen received his Doctor habilitatus there in astronomy. Since 1985 he has been a scientific advisor at the institute. Author of more than 200 scientific publications, he has since 1986 represented the Austrian astronomical community in its relations with the European Southern Observatory (ESO). In March 1989, Kurt Waldheim, the federal president of Austria, granted him the title Außerordentlicher Professor.
Maitzen developed a filter-photometric tool for discovering chemically peculiar magnetic stars, which detects a distinctive flux depression in the radiation of these stars around the 520-nanometre wavelength.
Maitzen is married and has four children.
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collaborative work dedicated to Humphrey Tonkinwd:Q15545540
author: Humphrey Tonkin, Probal Dasgupta, Louis-Christophe Zaleski-Zamenhof, Mark Fettes, Jouko Lindstedt, Vilmos Benczik, Rafaela Urueña, Federico Gobbo, Liu Haitao, Sabine Fiedler, Dalibor Brozović, István Ertl, Arikapalli Giridhar Rao, Seán Ó Riain, José Antonio Vergara, Aleksandr Dulichenko, Věra Barandovská-Frank, Wera Paintner, Claude Gacond, Wim Jansen, Boris Kolker, Ilona Koutny, Geraldo Mattos, Christopher Gledhill, Aleksandr Melnikov, Till Dahlenburg, John C. Wells, Renato Corsetti, Michel Duc-Goninaz, Christer Kiselman, Marc Bavant, Carlo Minnaja, E. James Lieberman, Ulrich Lins, Toño del Barrio, Vladimir Samodai, Vlastimil Novobilský, Chengtai Shi, Ed Borsboom, Werner Bormann, Jorge Camacho, Zbigniew Galor, Nikola Rašić, Hèctor Alòs i Font, Ziko van Dijk, Radojica Petrović, Katalin Kováts, Imre Ferenczy, Petr Chrdle, Amri Wandel, Barbara Pietrzak, Thomas Bormann, Mauro La Torre, Victor Sadler, Toon Witkam, Trevor Steele, Paul Gubbins, Julian Modest, Baldur Ragnarsson, Anna Löwenstein, Roman Dobrzyński, Li Shijun, Duncan Charters, Peter Baláž, Miroslav Malovec, Jukka Pietiläinen, Edmund Brent, Gregoire Maertens, So Gilsu, Marjorie Boulton, Michela Lipari, Ursula Grattapaglia, Hans Bakker, Ivo Osibov, Hans Michael Maitzen, Ulla Luin, György Nanovfszky, Renée Triolle, Mikhail Bronshteyn, Stefan MacGill, Orlando Raola, Spomenka Štimec, Miyoshi Etsuo, Reinhard Fößmeier, Detlev Blanke, Frank Nuessel