Sterrewacht Leiden [Leiden Observatory]

Interviewed by
Spencer Weart
Interview date
Location
NASA Center, New York City, New York
Abstract

Topics include: his youth and education at the University of Iowa (1959-1967); work on his Ph.D. with Van Allen and Satoshi Matsushima; research at Kyoto University, Japan with Matsushima and Sueo Ueno (1965-1966); NSF Postdoctoral Fellowship (1969); Leiden Observatory, Netherlands, planetary science and his work on Venus; aerosols; building a General Circulation Model; the work of Chandrasekar, Carl Sagan, Jim Pollack, Jastrow, Akio Arakawa, Jules Charney; global warming; collaboration with Wallace Broecker and the Lamont-Doherty Earth Observatory; working with Northern and Southern hemisphere meteorological station data.

Interviewed by
Spencer Weart
Interview date
Location
Goddard Institute for Space Studies, New York City, New York
Abstract

Topics include: his youth and education at the University of Iowa (1959-1967); work on his Ph.D. with Van Allen and Satoshi Matsushima; research at Kyoto University, Japan with Matsushima and Sueo Ueno (1965-1966); NSF Postdoctoral Fellowship (1969); Leiden Observatory, Netherlands, planetary science and his work on Venus; aerosols; building a General Circulation Model; the work of Chandrasekar, Carl Sagan, Jim Pollack, Jastrow, Akio Arakawa, Jules Charney; global warming; collaboration with Wallace Broecker and the Lamont-Doherty Earth Observatory; working with Northern and Southern hemisphere meteorological station data.

Interviewed by
David DeVorkin
Interview date
Location
International Astronomical Union meeting, Montreal, Quebec, Canada
Abstract

Early life and family in Amsterdam; childhood interest in astronomy and telescope-building; undergraduate at Rijksuniversiteit te Leiden (W. deSitter, J. Woltjer), works at Leiden Observatory; growing interest in galactic research (Ejnar Hertzsprung, Jan Oort); contact with others at Leiden (Paul Ehrenfest, Hendrik Kramers). Assistantship at Rijksuniversiteit te Gröningen, 1938; cooperative stellar catalog with Harvard University and Universität Hamburg. Life during the German Occupation, conditions in Leiden and Holland; the Resistance Movement; returns to Leiden, 1945. Begins work on thesis at end of war, continues Jacobus C. Kapteyn's interest in proper motion of helium star (Scorpio-Centaur association); compares Boss Catalog and FK Catalog for systematic errors (Oort). Discussion of postwar developments in time scale problem (Albrecht Unsöld, Victor Ambartsumian). To Yerkes Observatory, 1947; impressions of Yerkes and other American observatories: RR Lyrae variables (Otto Struve), 1947-1948; work on extension of cluster expansion (W. W. Morgan), 1952; work in Kenya on stellar positions (Maarten Schmidt), 1949-1950. Back to Yerkes, 1953-1957 (Bengt Strömgren, Gerard Kuiper, S. Chandrasekhar, A. Hiltner). Directorship of Kapteyn Laboratory, Groningen; organization of the Radio Foundation. Origins and development of European Southern Observatory; five-year term as Director. Views on development of astronomy in Holland (Antoine Pannekoek, Marcel Minnaert, Pieter van Rhijn); radio astronomy.