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active and non active regions

International Astronomical Union Colloquium (1)

International Astronomical Union (1)

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Coherence Analysis of Photospheric Line Parameters in Active and Non-Active Solar Regions
Arnold Hanslmeier, Wolfgang Mattig, Anastasios Nesis
Journal:

International Astronomical Union Colloquium / Volume 141 / 1993

Published online by Cambridge University Press:

12 April 2016, pp. 36-39

Print publication:

1993
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Examples of coherence functions between continuum intensity and line center velocity fluctuations are discussed for non active and active regions. It seems that the magnetic field leads to a different phase shift between intensity and velocity fluctuations than for non active regions.