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Title: Is Cosmic Acceleration Telling Us Something About Gravity?

Among the possible explanations for the observed acceleration of the universe, perhaps the boldest is the idea that new gravitational physics might be the culprit. In this colloquium I will discuss somore »me of the challenges of constructing a sensible phenomenological extension of General Relativity, give examples of some candidate models of modified gravity and survey existing observational constraints on this approach. I will conclude by discussing how we might hope to distinguish between modifications of General Relativity and dark energy as competing hypotheses to explain cosmic acceleration.« less
Title: Is Cosmic Acceleration Telling Us Something About Gravity?
Authors:
Publication Date: 2006-03-02
OSTI Identifier: 987162
DOE Contract Number: AC02-07CH11359
Other Number(s): Other: 060302Trodden1
Resource Type: Multimedia
Specific Type: Multimedia Presentation
Resource Relation: Conference: Fermilab Colloquia, Fermi National Accelerator Laboratory (FNAL), Batvia, Illinois (United States), presented on March 01, 2006
Research Org: FNAL (Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States))
Sponsoring Org: USDOE Office of Science (SC)
Subject: 79 ASTRONOMY AND ASTROPHYSICS
Publisher: FERMI
Country of Publication: United States
Language: English
Run Time: 1:07:54
System Entry Date: 2016-01-27