Distribution for the Regular Component of the Galactic Magnetic Field Using 5Year WMAP Data
Abstract
We have studied the spatial structure of the three dimensional largescale pattern of the Galactic Magnetic Field using the polarization maps obtained by the WMAP satellite at 22 GHz. By using different models of the largescale magnetic field of the Milky Way and a certain model for the cosmic rays electron distribution, we predict the expected polarized synchrotron emission. Using a Maximum Likelihood method, we explore the parameter values which best reproduce the WMAP data and obtain the marginal probability distribution for each of them. The model that better reproduces the observed map of polarization is an axisymmetric model with radial dependence of the strength of the magnetic field.
 Publication:

Highlights of Spanish Astrophysics V
 Pub Date:
 2010
 DOI:
 10.1007/9783642112508_118
 Bibcode:
 2010ASSP...14..439R
 Keywords:

 Physics