MGAT3 - Theoretical Issues in GR |
|
Speaker |
Faraoni, Valerio |
|
Talk Title |
Cosmological expansion and local dynamics |
|
Abstract |
Assuming that the Friedmann metric is valid down to small scales, do local objects expand with the universe or resist the expansion? This long-standing issue will be revisited with the help of new exact solutions describing black holes embedded in cosmological backgrounds. Unless the background is de Sitter (for which Price finds an ``all-or-nothing behaviour''), even the most strongly bound object, the black hole, participates in the expansion of the cosmic substratum. Issues of interpretation and genericity of the new exact solutions will be discussed. |
|
Talk view |
|
|
|
|