Strong Lensing by Galaxies

Strong lensing is a powerful tool to address three major astrophysical issues: understanding the spatial distribution of mass at kiloparsec and subkiloparsec scale, where baryons and dark matter interact to shape galaxies as we see them; determining the overall geometry, content, and kinematics of t...

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Bibliographic Details
Published in:Annual review of astronomy and astrophysics 2010-01, Vol.48 (1), p.87-125
Main Author: Treu, Tommaso
Format: Article
Language:English
Subjects:
Astrophysics
Gravity
Instrumentation
Kinematics
Spatial distribution
Stars & galaxies
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Summary:Strong lensing is a powerful tool to address three major astrophysical issues: understanding the spatial distribution of mass at kiloparsec and subkiloparsec scale, where baryons and dark matter interact to shape galaxies as we see them; determining the overall geometry, content, and kinematics of the Universe; and studying distant galaxies, black holes, and active nuclei that are too small or too faint to be resolved or detected with current instrumentation. After summarizing strong gravitational lensing fundamentals, I present a selection of recent important results. I conclude by discussing the exciting prospects of strong gravitational lensing in the next decade. [PUBLICATION ABSTRACT]
ISSN:0066-4146
1545-4282
DOI:10.1146/annurev-astro-081309-130924