Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ippa....2g..12m&link_type=abstract
Ipparchos, Vol.2, Issue 7, p. 12-16
Astronomy and Astrophysics
Astrophysics
Scientific paper
Strong gravitational lensing is a phenomenon that was long predicted by Einstein, Zwicky, and others, confirmed observationally in 1979, and which is now rapidly coming of age as a powerful tool. Gravitational lensing has many applications to fundamental problems in physics and astrophysics. As a quick overview list, with observations of strong gravitational lenses, it is possible to study extremely magnified galaxies from as far back as the dawn of cosmic time, measure the expansion and acceleration rate of the universe, determine the internal structure and the dark matter distribution within the central portions of distant galaxies, and even set meaningful measurements of the particle nature of dark matter. It is also a visually stunning phenomenon, which open many opportunities for engaging the public's interest at many levels. In this brief article, I set the stage for strong lensing, show some of the recent progress in the field, and give some indication for what this new decade holds.
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