The Parkes Galactic Meridian Survey (PGMS)
The Parkes Galactic Meridian Survey (PGMS) is aimed at mapping the polarized diffuse emission at 2.3-GHz along a Galactic meridian to study its behaviour from the Galactic plane to the south Galactic pole. One of the aims is to study the Galactic magnetic field at medium and high Galactic latitudes and at the transition with the Galactic disc. In combination with 1.4-GHz data, Rotation Measures (RMs) can be measured with a sensitivity of ~2-rad/m2, allowing exploration of the component of the Galactic magnetic field parallel to the line of sight even at high latitudes. Moreover, position angles corrected for RMgive information about the direction of the Galactic magnetic field perpendicular to the line of sight. Finally, the properties of the polarized synchrotron emission can be also investigated. This will be crucial for CMB Polarization observations, for which such Galactic emission acts as foreground noise. Here we present the survey together with some preliminary results.
KeywordsGalactic Plane Rotation Measure Synchrotron Emission Galactic Latitude Galactic Magnetic Field
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