Abstract
We empirically investigate the magnetic and thermodynamic properties of small-scale solar magnetic features in their upper photospheric and lower chromospheric layers. We find that the constraints set by the diagnostics we use (Mg I 12.32 µm line, Ca II K line, strong Fe lines, CO fundamental band lines, etc.) are well satisfied by the standard flux tube picture, if it is extended to include almost horizontal canopies in the lower chromosphere. These diagnostics also constrain the chromospheric temperature rise in flux tubes and their distribution and merging height. In addition, CO emission outside the solar limb is used to obtain information on the thermal structure of the chromosphere between the magnetic elements.
Operated by the Association of Universities for Research in Astronomy, Inc. (AURA), under cooperative agreement with the National Science Foundation
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© 1994 Springer Science+Business Media Dordrecht
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Solanki, S.K., Bruls, J.H.M.J., Steiner, O., Ayres, T., Livingston, W., Uitenbroek, H. (1994). The Upper Photosphere and Lower Chromosphere of Small-Scale Magnetic Features. In: Rutten, R.J., Schrijver, C.J. (eds) Solar Surface Magnetism. NATO ASI Series, vol 433. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1188-1_8
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DOI: https://doi.org/10.1007/978-94-011-1188-1_8
Publisher Name: Springer, Dordrecht
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