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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 Werner Curdt Max-Planck-Institut für Sonnensystemforschung Co-workers: H. Tian L. Teriaca Werner Curdt
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
spectral irradiances at 1 AU UV 1600 Å Ly- 12155Å EUV 30040Å X-rays 1 - 8 Å Multi-spacecraft observations (e.g., GOES, UARS, SOHO, SORCE) compilation by C. Fröhlich Werner Curdt
Ly- and Ly- spectral irradiance variation Ly- Ly- Lemaire et al. 2005 Werner Curdt
solar spectral radiance variability Solar minimum 1996 SOHO lost 1998 Schühle et al. (2000) Werner Curdt
June 24 and 26, 2008 June 25 July 2 (Ly- & Ly-) Werner Curdt
Ly- profile for different - radiances - velocities Curdt et al. 2008 Werner Curdt
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
cotemporal Ly- and Ly- profiles Werner Curdt
cotemporal rasters in Ly- and Ly- A flat topped B deep revearsal Tian et al. 2009a Werner Curdt
Center to limb variation in a polar coronal hole Tian et al. 2009b Werner Curdt
Ly- and Ly- profiles of disk and CH emission QS, disk QS, limb CH Xia 2003 Tian et al. 2009b Werner Curdt
radiance distributions of Ly-, Ly-, Si III, and O VI Werner Curdt
cotemporal radiance bins in QS Lyman continuum Tb = 7000 K Te = 9900 K Tb = 6300 K Te = 8000 K Wilhelm & Kalkofen 2003 Werner Curdt
sunspot quiet Sun Curdt et al. 2001 Werner Curdt
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