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Static and spherically symmetric black holes in $f(R)$ theories
Static spherically symmetric black holes theories
2011/10/14
We study some features of static and spherically symmetric solutions (SSS) with a horizon in $f(R)$ theories of gravitation by means of a near-horizon analysis. A necessary condition for an $f(R)$ the...
MODELING STATIC MAGNETIC FIELD STRUCTURES IN SOLAR CORONA (Invited review)
Sun magnetic fields-Sun corona
2009/2/23
We give an overview of procedures to recover and simulate typical
coronal static magnetic field topologies from given boundary data on the photo-
sphere. Relatively simple analytical treatments allo...