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Astronomy
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Gravitational Lensing by Galaxies and Clusters
Grade Level
Astronomy
AST.238 Gravitational Lensing by Galaxies and Clusters
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Which result is least consistent with microlensing?
A
A large, resolved blue arc wrapped around a foreground galaxy cluster
B
A smooth light curve that returns to baseline
C
A brief magnification caused by a compact foreground object
D
A temporary brightening of one unresolved background star
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