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Large Scale Flows in Cosmology: a challenge to the concordance model?

Fernando Atrio-Barandela
Física Teórica, Universidad de Salamanca, Spain

We have recently measured a coherent bulk scale flow that encompasses~300 Mpc/h of amplitude 600-1000 km/s in the direction of the cosmic CMB dipole.
This bulk flow motion is very difficult to accomodate  within the standard Lambda-CDM cosmological model. We shall summarize the results and its implications for cosmology, discussing possible explanations such as large scale voids and residual superhorizon fluctuations and their implications for inflation and/or quantum cosmology.

2009 August 26, 13:30

Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto

Instituto de Astrofísica e Ciências do Espaço Universidade do Porto Faculdade de Ciências da Universidade de Lisboa
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia