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An Observational Test for Solar Atmospheric Heating

Published online by Cambridge University Press:  13 May 2016

L. van Driel-Gesztelyi ,
P. Démoulin ,
J. Ireland ,
B. Thompson ,
A. Fludra ,
K. Oláh ,
Zs. Kővári ,
L. K. Harra ,
C. H. Mandrini  and
K. Bocchialini
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L. van Driel-Gesztelyi
Affiliation:
Observatoire de Paris, DASOP, 92195 Meudon Cedex, France
P. Démoulin
Affiliation:
Observatoire de Paris, DASOP, 92195 Meudon Cedex, France
J. Ireland
Affiliation:
NASA/Goddard SFC, Greenbelt, MD 20771, USA
B. Thompson
Affiliation:
NASA/Goddard SFC, Greenbelt, MD 20771, USA
A. Fludra
Affiliation:
Rutherford Appleton Lab., OX11 0QX, UK
K. Oláh
Affiliation:
Konkoly Observatory, Budapest, Pf. 67, H-1525, Hungary
Zs. Kővári
Affiliation:
Konkoly Observatory, Budapest, Pf. 67, H-1525, Hungary
L. K. Harra
Affiliation:
MSSL, University College London, RH5 6NT, UK
C. H. Mandrini
Affiliation:
Observatoire de Paris, DASOP, 92195 Meudon Cedex, France
K. Bocchialini
Affiliation:
IAS, Université Paris XI, France
S. Orlando
Affiliation:
Oss. Astr. di Palermo “G.S. Vaiana”, Italy

Abstract

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We study the evolution of the emissivity correlated with magnetic flux density of an active region from its birth until its decay throughout all atmospheric layers. We analyse multi-wavelength data obtained from SOHO, Yohkoh, GOES, SOLSTICE and 10.7 cm radio data from DRAO, Canada. We utilise our results to understand the scaling laws in different atmospheric layers. We confirm that the relationship between the emitted excess flux (flux - basal flux) and photospheric magnetic flux density ΔF(< f B >) follow power laws, and the powers depend on the formation temperature of the line(s) involved.

Type
Session V: Coronal Heating and Solar Wind Acceleration
Information
Symposium - International Astronomical Union , Volume 203: Recent Insights into the Physics of the Sun and Heliosphere: Highlights from Soho and Other Space Missions , 2001 , pp. 514 - 516
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

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