Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006atnf.prop..586c&link_type=abstract
ATNF proposal P560, Semester: October, 2006
Astronomy and Astrophysics
Astrophysics
Galactic, Extragalactic, Parkes
Scientific paper
We propose the S-band Polarization All Sky Survey (S-PASS) to survey the whole southern sky at DEC<+10 deg, in polarization, at frequency of 2.3 GHz. We expect to carry out a full characterization of the synchrotron polarized emission and to give a relevant support to the studies in the field of CMB cosmology as well as of Galactic magnetism. Recent WMAP results show that CMB polarization can be severely contaminated by the synchrotron emission, making mandatory a careful determination of astrophysical foregrounds. The proposed survey will enable a precise estimate of the CMB contamination by Galactic synchrotron that set the limit of measuring cosmic Inflation parameters through measurements of CMB polarization properties. S-PASS will provide an invaluable resource for magnetic field structure in the Galactic disk and disk-halo transition in the Southern sky, giving us a first detailed look at the role of the magnetic field in the Galactic disk, Galactic halo, and its evolution from the plane into the halo. At present we ask time for pilot observations to fine tune observing strategies and data reduction of the whole project.
Bernardi Gianni
Carretti Ettore
Cortiglioni Stefano
Haverkorn Marijke
McConnell David
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