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Detection of weak gravitational lensing distortions of distant galaxies by cosmic dark matter at large scales

โœ Scribed by Wittman, David M.; Tyson, J. Anthony; Kirkman, David; Dell'Antonio, Ian; Bernstein, Gary


Book ID
109769574
Publisher
Nature Publishing Group
Year
2000
Tongue
English
Weight
225 KB
Volume
405
Category
Article
ISSN
0028-0836

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Detection of weak gravitational lensing
โœ David J. Bacon; Alexandre R. Refregier; Richard S. Ellis ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 693 KB

We report a detection of the coherent distortion of faint galaxies arising from gravitational lensing by foreground structures. This `cosmic shear' is potentially the most direct measure of the mass power spectrum, as it is unaffected by poorly justified assumptions made concerning the biasing of th