Proceedings of the International Astronomical Union

Table of Contents - 2007 - Volume 3, Symposium S247 (Waves & Oscillations in the Solar Atmosphere: Heating and Magneto-Seismology)  

Contributed Papers

P-mode leakage and Lyman-α intensity

W. Finsterlea1, M. Haberreitera1, S. Kosovicheva2 and W. Schmutza1

a1 PMOD/WRC, Dorfstr. 33, CH-7260 Davos Dorf, Switzerland

a2 HEPL, Standford University, Stanford CA, U.S.A. email: wolfgang@pmodwrc.ch

Abstract

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

  • waves;
  • Sun: atmosphere;
  • Sun: photosphere;
  • Sun: chromosphere;
  • Sun: oscillations;
  • Sun: magnetic fields;
  • Sun: UV radiation