Fluctuations in stellar winds and their possible connections to the wind mass flux

NCUIR > Research Center > Center for Complex Systems > journal & Dissertation > Item 987654321/27726

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/27726

Title:	Fluctuations in stellar winds and their possible connections to the wind mass flux
Authors:	Chiueh,TZ
Contributors:	複雜系統研究中心
Keywords:	EQUATORIAL SOLAR-WIND;SPIRAL MAGNETIC-FIELD;ACCELERATION;EJECTA;WAVES
Date:	1997
Issue Date:	2010-06-29 19:13:48 (UTC+8)
Publisher:	中央大學
Abstract:	We show that the spherical, polytropic stellar winds are stable to all adiabatic fluctuations in the sense of absolute and convective stabilities. It is also shown that the neutrally stable sound waves driven by stellar turbulence or nonradial pulsations are trapped and become much enhanced near both the wind-flow base and the sonic resonance. They can exert great wave pressure at both locations, which are known to be critical in determining wind strength. This finding is strongly suggestive of a possible intimate connection between stellar turbulence and/or pulsations and stellar wind flux. In addition, a scenario for the appearance of large-amplitude waves riding on the winds at great, and hence observable, distances is given in the above context.
Relation:	ASTROPHYSICAL JOURNAL
Appears in Collections:	[Center for Complex Systems] journal & Dissertation

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