Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999esasp.446..537p&link_type=abstract
8th SOHO Workshop: Plasma Dynamics and Diagnostics in the Solar Transition Region and Corona. Proceedings of the Conference hel
Astronomy and Astrophysics
Astrophysics
1
Scientific paper
The chromospheric and transition region network is believed to be the basic channel of energy and momentum that heats the corona and accelerates the solar wind. While at spatial scales of one supergranular cell the network appears to be more or less homogeneous, at smaller scales it possesses a finer structure. We present here observations made with the CDS and SUMER spectrometers on SOHO pursuing the investigation of the coarse and the fine structure of the quiet-Sun network. A two-dimensional autocorrelation method allowed us to deduce the temperature-variation of network's width, while well-chosen density-sensitive line-ratios permitted to determine its filling factor at different temperatures. A discussion on possible implications of our results for steady-state energy and momentum balance for the quiet-Sun is included.
Bellamine Narjès
Gabriel Alan H.
Patsourakos Spyridwn
Vial Jean-Claude
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