Michiel van der Klis

Michiel van der Klis (2004)

Michiel Baldur Maximiliaan van der Klis (born June 9, 1953 in The Hague ) is a Dutch astrophysicist .

career

Van der Klis received his doctorate in 1983 from the University of Amsterdam with Ed van den Heuvel on the observation of X-ray binary stars . As a post-doctoral student he was at ESTEC in Noordwijk . In 1989 he became an assistant professor at the University of Amsterdam, where he received a full professor in 1993. He works at the university's "Anton Pannekoek" astronomical institute, where he was director from 2005 to 2010. From 2010-2015 he was an academy professor at the Royal Netherlands Academy of Sciences (KNAW) .

Klis is the discoverer of the first X-ray pulsar with periods in the millisecond range - it rotates at 400 revolutions per second.

In 1984 he also discovered the phenomenon of quasi-periodic oscillations in the X-ray spectrum of X-ray binary stars (QPO) on the ESA's EXOSAT research satellite . The phenomenon was then a very active field of research, as it originates from the inner edge of the accretion disk around compact objects such as black holes or neutron stars and allows insights into their dynamics and general relativistic effects .

Honors and prizes

• 1987 Bruno Rossi Prize
• 1990 Zeldovich Medal of the COSPAR
• 2002 Member of the Royal Netherlands Academy of Sciences (KNAW)
• 2003 Member of the Royal Dutch Society of Sciences (KHMW)
• 2004 Spinoza Prize
• 2010 Academy Chair at KNAW
• 2019: An asteroid named after him: (12653) van der Klis .

Fonts (selection)

• Michiel van der Klis: The Buzz of General Relativity . In: Science . tape 285 , no. 5433 , September 3, 1999, p. 1499–1500 , doi : 10.1126 / science.285.5433.1499 (English).
• Walther HG Lewin, Michiel van der Klis (eds.): Compact Stellar X-Ray Sources . Cambridge University Press, 2006, ISBN 978-1-139-45177-2 .

Web links

• Homepage. University of Amsterdam(English). 
• Laudation for Prof. van der Klis on the award of the academy professorship. (pdf) knaw.nl, 2010(English). 
• Biography. In: newscientist.nl. June 7, 2004(Dutch). 

Individual evidence

1. ↑ Michiel van der Klis, Rudy Wijnands: A millisecond pulsar in an X-ray binary system . In: Nature . tape 394 , 1998, pp. 344-346 , doi : 10.1038 / 28557 ( nature.com ).
2. ↑ Michiel van der Klis: Quasi-Periodic Oscillations in Celestial X-Ray Sources . In: Scientific American . tape 259 , no. May 5 , 1988 (English, scientificamerican.com - fee-based access).
3. ↑ Entry of the KNAW membership directory. knaw.nl, accessed on October 15, 2018 (English). 
4. ^ Prize winners in the academy professors program. knaw.nl, accessed October 15, 2018 (Dutch).