Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...389..777p&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 389, April 20, 1992, p. 777-783. Research supported by ASI and MURST.
Astronomy and Astrophysics
Astrophysics
14
Coronal Loops, Extreme Ultraviolet Radiation, Magnetohydrodynamic Flow, Positive Ions, Solar Spectra, Stellar Models, Carbon, Line Spectra, Oxygen Ions, Solar Activity, Solar Atmosphere, Solar Corona
Scientific paper
Models of steady siphon flow in solar coronal loops are computed and the intensities of some EUV transition region emission lines synthesized from these models are compared with representative obsevations of typical solar regions. It is found that siphon flow models of active region loops are in better agreement with observations of EUV transition region lines, while for large loops interconnecting different active regions, static models work slightly better. The role of siphon flows in determining the structure of the outer solar atmosphere is discussed based on these results.
Noci Giancarlo
Peres Giovanni
Spadaro Daniele
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