As an aside .. just reading the conclusion of the paper I uploaded:
Quote:
The SKA “Magnetism” Key Science Project plans to observe a wide-field survey (at least 10e4 deg2) around 1 GHz with 1 h integration per field, which will measure at least 1500 RMs per deg2 and a total RM number of at least 2 × 10e7 (Gaensler et al. 2004). More than 10e4 RM values are expected in the area of M 31 and will allow the detailed reconstruction of the 3-D field structure in this and many other nearby galaxies. Large-scale field patterns can be recognized out to distances of about 100 Mpc (Stepanov et al. 2008).
The SKA pulsar survey will find about 20 000 new pulsars which will be mostly polarized and reveal RMs, perfectly suited to measure the Milky Way’s magnetic field with high precision (Noutsos 2009)..
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Faraday rotation measures:
Quote:
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Rotation Measure (RM), which is the integral of the plasma density and the strength of the component of the field along the line of sight.
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That sounds like fantastic news !! 20,000 new pulsars !! And a 3D magnetic landscape !
Amazing !
Cheers