7 Nov
2003
7 Nov
'03
4:44 p.m.
this might be a bit off topic but still interesting...
Is it correct that intergalactinc gas, made of relativistic electrons, seen in X-rays by bremstrahlung rediation caused by collisions with DM particles, comes originally from galaxies, where the electrons are accelerated in galactic magnetic fields and SN explosions and then some of them escape the galactic grawitation ?
bartek