Thermal Conduction in Clusters of Galaxies

Details Thermal Conduction in Clusters of Galaxies Thermal Conduction in Clusters of Galaxies

2001-10-26

arxiv.org/abs/astro-ph/0110567v1

Astrophys.J. 562 (2001) L129-L132

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures. Accepted for publication in ApJ Letters

Scientific paper

10.1086/338325

We estimate the thermal conductivity of a weakly collisional magnetized plasma with chaotic magnetic field fluctuations. When the fluctuation spectrum extends over two or more decades in wave-vector, we find that thermal conduction is very efficient; the conduction coefficient is only a factor ~5 below the classical Spitzer estimate. We suggest that conduction could play a significant role in cooling flows in clusters of galaxies.

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