Biermann battery powered by resistive heating induced by cosmic ray streaming

ABSTRACT It is recently proposed that cosmic rays generate a seed magnetic field in the early Universe. In this paper, we propose another generation mechanism of fields by rays, which Biermann battery driven resistive heating induced streaming rays. This dominant small-scale, low-temperature, and strongly ionized regions, compared with other previously mechanisms. Because are expected to be accelerated after death first stars, can work during structure formation We show it makes sufficient strength for subsequent dynamo amplify micro Gauss level current galaxies.