Magnetic Flux Tubes in Late-Type Stars Propagation and Generation of Transverse Waves in Magnetic Flux Tubes

Name: Magnetic Flux Tubes in Late-Type Stars Propagation and Generation of Transverse Waves in Magnetic Flux Tubes
Brand: VDM Verlag
SKU: 9783639108583
Price: 19533 HUF
Availability: InStock

Szerző: Towfiq Ahmed

Nyelv:

Kötés: Puha kötésű

Kiadó: VDM Verlag

Elérhetőség: Beszállítói készleten

Küldés 14-21 napon belül

19 533 Ft

One of the most important and still unsolved §problems in stellar astrophysics is to identify the §b...

Információk a könyvről

Szerző

Towfiq Ahmed

Nyelv

Angol

Kötés

Könyv - Puha kötésű

Kiadva

2009

oldal

112

EAN

9783639108583

ISBN

3639108582

Enbook ID

06819793

Kiadó

VDM Verlag

Súly

159

Méretek

152 x 229 x 6

Teljes leírás

One of the most important and still unsolved §problems in stellar astrophysics is to identify the §basic physical processes that are responsible for §the extensive heating of the chromosphere and corona §in late-type stellar atmospheres. Two widely §accepted ways of heating are due to acoustic §wave in non-magnetic region, and MHD (magneto-§hydrodynamic) waves in the concentrated magnetic §flux tube region. Out of three different MHD tube §modes (transverse, longitudinal and torsional) this §study only involves the propagation and generation §of the transverse tube wave, which are the most §efficient means of energy transfer in the stellar §atmosphere. The current research has two components. §First, starting from the general properties of §magnetic flux tubes, propagation of stellar §transverse tube waves and corresponding cutoff §frequencies are determined analytically for the §first time for non-isothermal stellar atmospheres. §Second, the rate of transverse wave energy §generation at the stellar surface at a given height §has been calculated analytically for linear tube §wave, and numerically for nonlinear tube wave in §late-type stars for the first time.

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Magnetic Flux Tubes in Late-Type Stars Propagation and Generation of Transverse Waves in Magnetic Flux Tubes

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