What is Gravitational Lensing?
|Titel||What is Gravitational Lensing?|
|Autor||Alexie Leauthaud and Reiko Nakajima|
|Herausgeber||Lawrence Berkeley National Laboratory (LBNL)|
|Abstract||July 28, 2009 Berkeley Lab summer lecture: Gravitational lensing is explained by Einstein's general theory of relativity: galaxies and clusters of galaxies, which are very massive objects, act on spacetime by causing it to become curved. Alexie Leauthaud and Reiko Nakajima, astrophysicists with the Berkeley Center for Cosmological Physics, will discuss how scientists use gravitational lensing to investigate the nature of dark energy and dark matter in the universe.|