The heating of solar magnetic flux tubes II. Nonadiabatic longitudinal tube waves

Details The heating of solar magnetic flux tubes II. Nonadiabatic longitudinal tube waves The heating of solar magnetic flux tubes II. Nonadiabatic longitudinal tube waves

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010newa...15..717f&link_type=abstract

New Astronomy, Volume 15, Issue 8, p. 717-725.

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The formation of shocks and shock heating by radiatively damped longitudinal waves in solar magnetic flux tubes of different filling factors is studied. We consider three flux tubes of filling factors: 1%, 20%, and exponentially spreading which represent normal, enhanced network regions and the interior of supergranulation cells respectively. Monochromatic waves with periods 60 s and energy fluxes of 4.0 · 108 erg cm-2 s-1 are assumed to propagate in the tubes. We find that the H--continuum losses and the Mg II line emission are much reduced in the tube of small filling factor while the mean temperatures are roughly similar in both tubes. The exponential flux tube shows little or no shock heating and no radiation damping. Shocks form earlier in the tube of high filling factor, and have larger strength.

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