Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004iaus..219..575p&link_type=abstract
Stars as suns : activity, evolution and planets, Proceedings of the 219th symposium of the International Astronomical Union held
Astronomy and Astrophysics
Astronomy
1
Scientific paper
Hardly any part of the chromosphere and the low corona of the Sun is in a static state. Spectrographs reveal line shifts and non-thermal broadening indicating mass supply to the corona draining of coronal material siphon flows wave propagation and more. Imaging instruments show apparent motions of bright or dark structures indicating the presence of flows and waves too.
This paper will review recent observations of mass and wave motions in the low corona focusing on spectroscopic investigations and will discuss their relevance to the understanding of the dynamics and energetics of the corona.
Special emphasis will be devoted to the question what these solar observations might teach us with respect to stellar coronae and how we could use observations and models of stellar coronae to improve our knowledge of the Sun.
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