Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-03-11
Phys.Rev.Lett. 92 (2004) 045001
Astronomy and Astrophysics
Astrophysics
Major revision: higher resolution simulations lead to significantly different conclusions. 4 pages, 4 figures, submitted to Ph
Scientific paper
10.1103/PhysRevLett.92.045001
We investigate field-line separation in strong MHD turbulence using direct numerical simulations. We find that in the static-magnetic-field approximation the thermal conductivity in galaxy clusters is reduced by a factor of about 50 relative to the Spitzer thermal conductivity of a non-magnetized plasma. This value is too small for heat conduction to balance radiative cooling in clusters.
Blackman Eric G.
Chandran Benjamin D. G.
Maron Jason L.
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