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Hydrogen Lyman emission through the solar cycle

Hydrogen Lyman emission through the solar cycle. Werner Curdt Max-Planck-Institut für Sonnensystemforschung. Co-workers: H. Tian L. Teriaca. Outline:  Motivation  Irradiance data through the cycle - Lyman alpha - other lines  Radiance data / line profiles - Lyman alpha

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Hydrogen Lyman emission through the solar cycle

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  1. Hydrogen Lyman emission through the solar cycle Werner Curdt Max-Planck-Institut für Sonnensystemforschung Co-workers: H. Tian L. Teriaca Werner Curdt

  2. Outline:  Motivation Irradiance data through the cycle - Lyman alpha - other lines Radiance data / line profiles - Lyman alpha - Lyman beta - Lyman continuum The role of the magnetic field Conclusion Werner Curdt

  3. spectral irradiances at 1 AU UV 1600 Å Ly- 12155Å EUV 30040Å X-rays 1 - 8 Å Multi-spacecraft observations (e.g., GOES, UARS, SOHO, SORCE) compilation by C. Fröhlich Werner Curdt

  4. Ly- and Ly- spectral irradiance variation Ly- Ly- Lemaire et al. 2005 Werner Curdt

  5. solar spectral radiance variability Solar minimum 1996 SOHO lost 1998 Schühle et al. (2000) Werner Curdt

  6. June 24 and 26, 2008 June 25 July 2 (Ly- & Ly-) Werner Curdt

  7. Ly- profile for different - radiances - velocities Curdt et al. 2008 Werner Curdt

  8. cotemporal Ly- and Ly- data Ly- radiance Ly- radiance / photons s-1 m-2 Ly- / Ly- photon ratio = 188  1 significantly higher than Vernazza & Reeves (1978) Lemaire (2005) Werner Curdt

  9. cotemporal Ly- and Ly- profiles Werner Curdt

  10. cotemporal rasters in Ly- and Ly-  A flat topped B deep revearsal  Tian et al. 2009a Werner Curdt

  11. Center to limb variation in a polar coronal hole Tian et al. 2009b Werner Curdt

  12. Ly- and Ly- profiles of disk and CH emission QS, disk QS, limb CH   Xia 2003 Tian et al. 2009b Werner Curdt

  13. radiance distributions of Ly-, Ly-, Si III, and O VI Werner Curdt

  14. cotemporal radiance bins in QS Lyman continuum Tb = 7000 K Te = 9900 K Tb = 6300 K Te = 8000 K Wilhelm & Kalkofen 2003 Werner Curdt

  15. sunspot quiet Sun Curdt et al. 2001 Werner Curdt

  16. ! ? Werner Curdt

  17. Werner Curdt

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