Evidence for siphon flows with shocks in solar magnetic flux tubes

Details Evidence for siphon flows with shocks in solar magnetic flux tubes Evidence for siphon flows with shocks in solar magnetic flux tubes

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...279l..29d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 279, no. 2, p. L29-L32

Astronomy and Astrophysics

Astronomy

12

Infrared Spectra, Magnetic Flux, Magnetohydrodynamic Flow, Radiative Heat Transfer, Shock Waves, Solar Magnetic Field, Stellar Models, Stellar Spectra, Astronomical Spectroscopy, Infrared Astronomy, Line Spectra, Mathematical Models, Photosphere, Shock Tubes, Siphons, Zeeman Effect

Scientific paper

We synthesize profiles of the infrared line Fe I 15648.5 A (g = 3) for a recently developed theoretical model of siphon flows along photospheric magnetic loops. The synthesized line profiles are compared with the observations from which Rueedi et al. (1992) deduced the presence of such flows across the neutral line of an active region plage. This comparison supports the interpretation of Rueedi et al. (1992). It also suggests that the average footpoint separation of the observed loops carrying the siphon flow is 8-15 sec and that the siphon flow experiences a standing tube shock in the downstream leg near the top of the arch.

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