UNSPECIFIED (2001) Nonlinear magneto-acoustic waves in the solar atmosphere. In: 3rd Conference on Mixing in Geophysical and Astrophysical Flows, APR 12-14, 2000, UNIV SHEFFIELD, SHEFFIELD, ENGLAND.

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Abstract

The weakly nonlinear evolution of quasi-isentropic magnetoacoustic waves in the solar atmosphere is analyzed. The plasma is assumed to be initially homogeneous, in thermal equilibrium and with a straight and homogeneous magnetic field frozen in. Additionally, the plasma is assumed to be cooled by the standard cooling function in the range of 10(4) K < T < 10(7) K and heated by a mechanism which is proportional to the density and temperature. The range of temperature where the plasma is isentropically unstable, the e-folding time for thermal instability and the corresponding time and length-scale for wave breaking are found. (C) 2001 Elsevier Science B.V. All rights reserved.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	Q Science > QE Geology Q Science > QC Physics G Geography. Anthropology. Recreation > GC Oceanography
Journal or Publication Title:	DYNAMICS OF ATMOSPHERES AND OCEANS
Publisher:	ELSEVIER SCIENCE BV
ISSN:	0377-0265
Date:	October 2001
Volume:	34
Number:	2-4
Number of Pages:	11
Page Range:	pp. 399-409
Publication Status:	Published
Title of Event:	3rd Conference on Mixing in Geophysical and Astrophysical Flows
Location of Event:	UNIV SHEFFIELD, SHEFFIELD, ENGLAND
Date(s) of Event:	APR 12-14, 2000
URI:	http://wrap.warwick.ac.uk/id/eprint/11831

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