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Nature 426, 781-782 (18 December 2003) | doi:10.1038/426781a
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Admission for Research Scholars Program
- CDFD (Centre for DNA Fingerprinting and Diagnostics)
- Hyderabad, A.P. 500 001 India
John Innes Centre Project Leader in Plant or Microbial Sciences
- University of East Anglia
- Norwich, NR4 7TJ, UK
Astronomy: Wide-angle lens
Joachim Wambsganss1
Abstract
Gravitational lenses produce multiple images of single astronomical objects. The most widely separated images of a quasar ever found reveal the dark-matter content of the lensing galaxies.
Record-breaking is usually gently incremental, each record a slight improvement on the last. It's rare that a new record more than doubles the old record-holding value, particularly one that had stood for more than two decades.
- Joachim Wambsganss is at the Physics Institute, University of Potsdam, Am Neuen Palais 10, 14469 Potsdam, Germany.
Email: jkw@astro.physik.uni-potsdam.de
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