Researchers study gravitational lensing around an extremely dense galaxy cluster
Friday, July 20, 2018 - 08:31
in Astronomy & Space
Dark matter halos are theoretical bodies inside which galaxies are suspended; the halo's mass dominates the total mass. These halos cannot be observed directly, but astronomers infer their presence by the phenomenon of gravity lensing—the distortion of background objects by strong gravitational sources that act as lenses. Astronomers can even study distant galaxies magnified by the gravitational lensing of closer gravitational objects.