Outline
Future observation satellite for the CMB B-mode polarization aims to detect scalar to tensor ratio of 0.1 % level.
In order to go down to this level, the precision of the separation between the CMB and foreground radiation in the millimeter-wave polarization data must be improved by more than one order of magnitude in a precision.
We will achieve this by the following:
- Dramatic improvements of the model of millimeter-wave radiation distribution in the all-sky by the use of far-infrared all-sky survey data from AKARI.
- Construction of the first practical 3-D structure model of the galactic magnetic field which can reproduce the unsteady phenomena such as supernova explosions near solar system, by using numerical magnetohydrodynamic simulations.
- Construction of a radiation model for polarization of dusts in collaboration with the Planck mission.
Incorporating these results, we will build a computational scheme to carry out the high-precision component separation between the CMB and foreground radiation by utilizing the differences of their physical characteristics.