2006ApJ...645L..25L

Query : 2006ApJ...645L..25L

2006ApJ...645L..25L - Astrophys. J., 645, L25-L28 (2006/July-1)

Enhancement and suppression of heat transfer by MHD turbulence.

LAZARIAN A.

Abstract (from CDS):

We study the effect of turbulence on heat transfer within magnetized plasmas for energy injection velocities both larger and smaller than the Alfvén speed. We find that in the latter regime the heat transfer is partially suppressed, while in the former regime the effects of turbulence depend on the intensity of driving. In fact, the scale lAat which the turbulent velocity is equal to the Alfvén velocity is an important new parameter. When the electron mean free path λ is larger than lA, the stronger the turbulence, the lower the thermal conductivity by electrons. The turbulent motions, however, induce their own advective heat transport, which, for the parameters of intracluster medium, provides effective heat diffusivity that exceeds the classical Spitzer value.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Clusters: General - ISM: General - Magnetohydrodynamics: MHD - Turbulence

Errata: erratum vol. 660, p. L173 (2007)

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Local Bubble ISM ~ ~           ~ 1059 0

Query : 2006ApJ...645L..25L

Basic data :
NAME Local Bubble -- Interstellar Medium Object
Other object types: otypes_help 		ISM ()
ICRS coord. (ep=J2000) : 		No Coord.

Identifiers (2) :
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NAME Local Bubble NAME Local Interstellar Bubble

References (1059 between 1850 and 2026) (Total 1059)
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