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Growth rate of magnetic field during starburst phase in a galaxy

Published online by Cambridge University Press:  18 July 2013

Chung-Ming Ko
Chung-Ming Ko*
Affiliation:
Institute of Astronomy, Department of Physics and Center for Complex Systems, National Central University, Jhongli 320, Taiwan (R.O.C.) email: cmko@astro.ncu.edu.tw
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Abstract

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During an active star formation phase, it is conceivable that the turbulent level of a galaxy increases and consequently an increase in magnetic field by turbulent dynamo process. We point out that the thickness of the dynamo region is sensitive to the turbulent level. We examine the linear growth rate of three different dynamos, namely, αω, α2ω and α2 dynamos. We find that the dependence of the growth rate on turbulent level is quite different for different dynamos. Moreover, the growth rate is not necessary monotonic to turbulence level even in the linear regime.

Keywords

ISM: magnetic fieldsgalaxies: starburstturbulence
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S294: Solar and Astrophysical Dynamos and Magnetic Activity , August 2012 , pp. 251 - 252
Copyright
Copyright © International Astronomical Union 2013 

References

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