Small Scale Motions Over Concentrated Magnetic Field Regions of the Quiet Sun

Dara, H. C.; Alissandrakis, C. E.; Koutchmy, S.

doi:10.1007/978-94-009-1061-4_16

H. C. Dara²,
C. E. Alissandrakis³ &
S. Koutchmy⁴

Part of the book series: International Astronomical Union ((IAUS,volume 138))

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Abstract

Using a time sequence of filtergrams in the magnetically sensitive λ6103A Cal line (with circular polarization measurements), obtained with the SPO Vacuum Tower Telescope and the universal filter we mapped the line of sight velocity and the longitudinal magnetic field in three quiet solar regions. After elimination of the effect of the 5-minute photospheric oscillations we found in two regions of concentrated magnetic field no association with the line of sight velocity, while the third region was associated with small (<300 m/s) downflows.

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References

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Authors and Affiliations

Research Center for Astronomy and Applied Mathematics, Academy of Athens, GR-10673, Athens, Greece
H. C. Dara
Section of Astrophysics, Astronomy and Mechanics, Department of Physics, University of Athens, GR-15783, Athens, Greece
C. E. Alissandrakis
Institut d’ Astrophysique de Paris, Paris, F-75014, France
S. Koutchmy

Authors

H. C. Dara
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C. E. Alissandrakis
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S. Koutchmy
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Editors and Affiliations

Institute of Astronomy, Zurich, Switzerland
J. O. Stenflo

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Dara, H.C., Alissandrakis, C.E., Koutchmy, S. (1990). Small Scale Motions Over Concentrated Magnetic Field Regions of the Quiet Sun. In: Stenflo, J.O. (eds) Solar Photosphere: Structure, Convection, and Magnetic Fields. International Astronomical Union, vol 138. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1061-4_16

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DOI: https://doi.org/10.1007/978-94-009-1061-4_16
Publisher Name: Springer, Dordrecht
Print ISBN: 978-0-7923-0530-9
Online ISBN: 978-94-009-1061-4
eBook Packages: Springer Book Archive

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