Very little is known about the structure and the distribution of the galactic magnetic field in the outer Milky Way. Models exist about the distribution away from the galactic disk plane but they require observations that confirm their results. Their results will give an understanding of the dust distribution and orientation all over the galaxy. A survey with CIRCE of the distribution of the magnetic field will give clues about the 2D distribution. In addition, observations of galactic cluster polarimetry, in particular open clusters, will complement the survey with 3D distribution information. However, mapping galactic magnetic fields require to solve many other questions concerning the distribution of the magnetic flow from cloud to cloud and the field alignment of the field direction between the inner and the outer part of the cloud. CIRCE wilgive the opportunity of collecting this data needed to answer these questions.



GALACTIC
Galactic Center
Galactic Magnetic Fields
Microquasars
Massive Stars
Gamma Ray Outbursts
Young Stars
Star and Planet Formation

EXTRAGALACTIC
AGN
Quasars
Early Universe