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Magnetic fields of Ap stars as a result of an instability
Stars chemically peculiar magnetic fields – instabilities
2010/11/15
Ap star magnetism is often attributed to fossil magnetic fields which have not changed much since the pre-main-sequence epoch of the stars. Stable magnetic field configurations are known which could p...
Common origin for radio relics and halos: galaxy cluster-wide, homogeneous cosmic-ray distribution, and evolving magnetic fields
galaxies clusters general — galaxies clusters intracluster medium —X-rays galaxies: clusters
2010/11/10
Some galaxy clusters show diffuse radio emission in the form of peripheral relics (so
far attributed to primary, shock-(re)accelerated electrons) or central halos. Analysing
radio and X-ray data fro...
Evolution and Distribution of Magnetic Fields from AGNs in Galaxy Clusters. I. The Effect of Injection Energy and Redshift
galaxies active — galaxies clusters general — methods numerical — MHD — turbulence
2010/11/9
We present a series of cosmological magnetohydrodynamic (MHD) simulations that simultaneously follow the formation of a galaxy cluster and evolution of magnetic fields ejected by an Active Galactic Nu...
Vector Magnetic Fields and Current Helicities in Coronal Holes and Quiet Regions
Sun activity — Sun magnetic fields — Sun photosphere
2010/11/10
In the solar photosphere, many properties of coronal holes (CHs) are notknown, especially vector magnetic fields. Using observations from Hinode, we investigate vector magnetic fields, current densiti...