Solar Magnetic Phenomena

The concept of summerschools and workshops at the Kanzelh ohe Solar Observatory,Karn ten,Austria,devotedtoup-to-datetopicsinsolarphysics has been proven to be extremely successful, and thus in August/September 2003 the third combined summerschool and workshop was held there. This book contains the proceedings of the Summerschool and Wo- shop "Solar Magnetic Phenomena" held from 25 August to 5 September 2003 at the Solar Observatory Kanzelh ohe, which belongs to the Institute for Geophysics, Astrophysics and Meteorology of the University of Graz, Austria. The book contains the contributions from six invited lecturers. They give an overview on the following topics: observations of the pho- sphere and chromosphere, solar ?are observations and theory, coronal mass ejections and the relevance of magnetic helicity, high-energy radiation from the Sun, the physics of solar prominences and highlights from the SOHO mission. The lectures contain about 25 to 30 pages each and provide a valuableintroduction to the topics mentioned above. The comprehensive lists ofreferences at theendof each contribution enablethe interested reader to go into more detail. The second part of the book contains contributed papers. These - pers were presented anddiscussed in theworkshop sessions during the afternoons. The sessions stimulated intensive discussions between the p- ticipants and lecturers.

Zusammenfassung
The concept of summerschools and workshops at the Kanzelh¨ ohe ¨ Solar Observatory,Karn ¨ ¨ ten,Austria,devotedtoup-to-datetopicsinsolarphysics has been proven to be extremely successful, and thus in August/September 2003 the third combined summerschool and workshop was held there. This book contains the proceedings of the Summerschool and Wo- shop Solar Magnetic Phenomena held from 25 August to 5 September 2003 at the Solar Observatory Kanzelh¨ ohe, ¨ which belongs to the Institute for Geophysics, Astrophysics and Meteorology of the University of Graz, Austria. The book contains the contributions from six invited lecturers. They give an overview on the following topics: observations of the pho- sphere and chromosphere, solar ?are observations and theory, coronal mass ejections and the relevance of magnetic helicity, high-energy radiation from the Sun, the physics of solar prominences and highlights from the SOHO mission. The lectures contain about 25 to 30 pages each and provide a valuableintroduction to the topics mentioned above. The comprehensive lists ofreferences at theendof each contribution enablethe interested reader to go into more detail. The second part of the book contains contributed papers. These - pers were presented anddiscussed in theworkshop sessions during the afternoons. The sessions stimulated intensive discussions between the p- ticipants and lecturers.

Inhalt

Invited Lectures.- Observations of Photosphere and Chromosphere.- Solar Flares - Observations and Theory.- Coronal Mass Ejections and Magnetic Helicity.- High Energy Radiation from the Sun.- Physics of Solar Prominences.- Eight Years of Soho: Some Highlights.- Contributed Papers.- 2 1/2-D Compressible Reconnection Model.- Waiting Time Distribution of CMES.- Simultaneous Visible and IR Spectropolarimetry of the Quiet Sun.- A Simple Topological Model of the Bastille Day Flare (July 14, 2000).- Spectropolarimetry in a Sunspot Penumbra at High Spatial Resolution.- X-Ray and H?Emission of the 20 Aug 2002 Flare*.- Center-to-Limb Variation of Facular Contrast Derived from MLSO RISE/PSPT Full Disk Images.- The Acceleration-Velocity Relationship in 5000 LASCO-CME's.- Time Evolution of the Spectral Index in Solar Flares.- Analysis of Doppler Shifts of Spectral Lines Obtained by the CDS/SOHO Instrument.- On the Behaviour of a Blinker in Chromospheric and Transition Region Layers.- On the 24- and 155-Day Periodicity Observed in Solar H? Flares.- He-D3 Polarization Observed in Prominences.- Line-of-Sight Velocity and Magnetic Field in Sunspot Penumbrae.- Impulsive X-Ray Radiation Characteristics of Solar Flare Footpoints.- Velocity Fields in an Irregular Sunspot.- On the Dynamic Disconnection of Rising ?-Loops.- Searching for the Origins of the Fast Solar Wind.- Detectability of High Frequency Acoustic Waves with Trace.- Linking Coronal to Interplanetary Magnetic Helicity.- Debrecen Photoheliographic Data and Its Comparison with Other Sunspot Databases.- Properties of a Small Active Region in the Solar Photosphere.- Small Scale Events Seen in SXT Observations.- Properties of Type IV Radio Bursts with Periodical Fine Structures.- Testing the Neupert Effect.- The Faint YoungSun Problem.- CCD Spectroscopy of Solar Rotation.- The Observing Programs at Kanzelhöhe Solar Observatory.- Theoretical Modeling of Potential Magnetic Field Distribution in the Corona above Axially Symmetric Photospheric Active Regions in a Uniform Magnetic Field.