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P-mode leakage and Lyman-α intensity

Published online by Cambridge University Press:  01 September 2007

W. Finsterle ,
M. Haberreiter ,
S. Kosovichev  and
W. Schmutz
W. Finsterle
Affiliation:
PMOD/WRC, Dorfstr. 33, CH-7260 Davos Dorf, Switzerland
M. Haberreiter
Affiliation:
PMOD/WRC, Dorfstr. 33, CH-7260 Davos Dorf, Switzerland
S. Kosovichev
Affiliation:
HEPL, Standford University, Stanford CA, U.S.A. email: wolfgang@pmodwrc.ch
W. Schmutz
Affiliation:
PMOD/WRC, Dorfstr. 33, CH-7260 Davos Dorf, Switzerland
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Abstract

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We present an observational test of the hypothesis that leaking p modes heat the solar chromosphere. The amplitude of the leaking p modes in magneto-acoustic portals is determined using MOTH and MDI data. We simulate the propagation of these modes into the chromosphere to determine the height where the wave energy is dissipated by shock waves. A statistical approach is then used to check if this heating process could account for the observed variability of the intensity in the Lyman-α emission.

Keywords

wavesSun: atmosphereSun: photosphereSun: chromosphereSun: oscillationsSun: magnetic fieldsSun: UV radiation

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