[Todos] [Fwd: IAFE-COLOQUIO: "Type Ia SNe, the discovery of Cosmic Acceleration, the Nobel Prize 2011, and all that fuzz. "]

[difusion en iafe.uba.ar]

                  PRÓXIMO COLOQUIO DEL IAFE
            Instituto de Astronomía y Física del Espacio
                          CONICET-UBA
_________________________________________________________________________


 "Type Ia SNe, the discovery of Cosmic Acceleration, the Nobel Prize 2011,
and all that fuzz. "

                        Alejandro Clocchiatti
               Pontificia Universidad Católica de Chile
                 Miércoles 10 de octubre 2012, 14:30hs.
                         Aula del Edificio IAFE

The 2011 Nobel Prize in Physics was given to Saul Perlmutter, Brian
Schmidt and Adam Riess for the discovery of the accelerated expansion of
the Universe by measuring precise distances to high redshift Type Ia
Supernovae. The 1998 discovery was the surprising end of one of the large
projects of 20th century cosmology. In addition, the discovery was the
result of the long evolution of research lines that transformed supernovae
in the best distance estimator for cosmologically relevant distances at
the current time. Also, it was the final end of an exciting race between
two competing teams that struggled for years to arrive first to the
result. The fact that each of the teams was made up from researchers with
different cultures (i.e. physicists and astronomers) adds spice to the
saga.
As a member of one of the teams I had a privileged view of the research,
the impact of the result, and the story. In this conference I will cover
the basic framework of cosmology, astrophysics and technology that allowed
us to discover the acceleration of the Universe expansion, back in 1998.