Simulations of Magnetic Fields in Filaments

Brüggen, M.; Ruszkowski, M.; Simionescu, A.; Hoeft, M.; Dalla Vecchia, C.
Referencia bibliográfica

The Astrophysical Journal, Volume 631, Issue 1, pp. L21-L24.

Fecha de publicación:
9
2005
Número de autores
5
Número de autores del IAC
0
Número de citas
104
Número de citas referidas
96
Descripción
The intergalactic magnetic field within filaments should be less polluted by magnetized outflows from active galaxies than magnetic fields in clusters. Therefore, filaments may be a better laboratory to study magnetic field amplification by structure formation than galaxy clusters, which typically host many more active galaxies. We present highly resolved cosmological adaptive mesh refinement simulations of magnetic fields in the cosmos and make predictions about the evolution and structure of magnetic fields in filaments. Comparing our results to observational evidence of magnetic fields in filaments suggests that amplification of seed fields by gravitational collapse is not sufficient to produce intergalactic medium fields. Finally, the implications for cosmic-ray transport are discussed.