Titlebook: Mapping the Galaxy and Nearby Galaxies; Keiichi Wada,Fran?oise Combes Conference proceedings 2008 Springer-Verlag New York 2008 Galaxy For

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Global MHD Simulations of Galactic Gas Disksscape of azimuthal magnetic flux amplified in the disk. The quasi-periodic reversals of azimuthal magnetic fields create a magnetically striped halo, in which azimuthal magnetic fields reverse their direction with height.

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Conference proceedings 2008ogress has been made in recent years through observational and theoretical studies. Not only have gigantic surveys covering a large fraction of the sky brought statistics enlightening evolutionary paths of galaxies, but powerful instruments, such as radio interferometers and ground- and space-based

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Numerical Modeling of the ISM in the Galactic Center and DisksWe find that the observed SFR in normal and starburst galaxies are well-fitted by the theoretical SFR in a wide range of the global gas density (10 –10..⊙pc.). Star formation efficiency (SFE) for high density gas (.>10. cm.) may be intrinsically different between starburst and normal galaxies.

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The Parkes Galactic Meridian Survey (PGMS) 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.

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Mapping the Milky Way and the Local Grouproper motions of Local Group galaxies are now being measured. These observations will lead to direct mapping of the structure of the Milky Way, testing of the spiral density wave paradigm, measuring the dark matter halos of Local Group galaxies, and better understanding of the past history and future fate of these galaxies.

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Mapping Large-scale Magnetic Fields in Giant Molecular Cloudsh submillimeter polarimeters that have been operated from larger telescopes on Mauna Kea, SPARO obtains relatively coarse angular resolution but much better sensitivity to fainter, more extended emission. We have also discussed these recent SPARO observations in a paper in the Astrophysical Journal [3].

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