Education
Bachelor in Astronomy, Physics, U. Leiden, 1979; Master of Science in Astronomy, Physics cum laude, U. Leiden, 1982; Doctor of Philosophy in Astronomy, U. Leiden, 1986.
Bachelor in Astronomy, Physics, U. Leiden, 1979; Master of Science in Astronomy, Physics cum laude, U. Leiden, 1982; Doctor of Philosophy in Astronomy, U. Leiden, 1986.
Postdoctoral researcher, Institute Advanced Study, Princeton, New Jersey, 1986-1987; postdoctoral researcher, University of California, Berkeley, 1987-1990; assistant professor astronomy, New Mexico State University, Las Cruces, 1991-1996; head department, associate professor astronomy, New Mexico State University, Las Cruces, since 1996. Visiting assistant professor department physics University of California, Davis, 1989-1990.
Member International Astronomical Union, American Astronomical Society, Netherlands Astronomical Society, Astronomical Society Pacific.