|The Australia Telescope National Facility Colloquium|
|15:30-16:30 Wed 28 Sep 2005|
ATNF Marsfield Lecture Theatre
Dr Ettore Carretti
(Institute for Space Astrophysics and Cosmic Physics Bologna, Italy)
Deep polarization observations of the Galactic synchrotron emission in the southern sky. - Dr Ettore Carretti Colloquium
The Polarization of the Cosmic Microwave Background radiation (CMBP) allows us to investigate many processes of the primordial Universe. Inflation, scalar (density) and tensorial (gravitational waves) primordial perturbations, and formation processes of first stars and galaxies at the re-ionization age can be effectively studied through its angular power spectra. In spite of its importance, the CMBP signal is faint and its detection can be disturbed by astrophysical sources in the foreground. The Galactic synchrotron background emission is
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