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  Information - ST11 Seismology of the Sun, solar variability, and solar dynamo

Event Information
High-resolution spacecraft missions (SOHO, TRACE), and well-established
ground-based networks (BiSON and GONG), have opened up a new era in
the investigation of solar structures by making direct or indirect
observations of wave activity in the Sun.

Helioseismology provides very detailed information about the properties of
the solar interior. The inferences of the internal structure have given an
important test of stellar- evolution theory, as well as of the physical
properties of matter under stellar conditions. Equally significantly
the observations have given us the first detailed view of the internal
rotation of a star, of great importance to the understanding of the
evolution of stellar rotation and likely involved in the generation
of the cyclic solar magnetic activity. In recent years observational
advances have allowed the detection and study of solar-like oscillations
in other stars. Although the data will never be as detailed as for the
Sun, these results are crucial in extending the observational basis for
stellar-evolution studies to a broad range of stars.

Recent observations by SOHO and TRACE of local and global waves in
the solar atmosphere have led solar scientists to the determination of
previously unknown physical parameters such as magnetic field, transport
coefficients, substructures, etc. Combining observed atmospheric
oscillations, with magnetic wave theory, offers the prospect of
developing a new method for studying the Sun - seismology of the solar
atmosphere.

The driver behind the magnetic activity is a dynamo that produces large
scale fields that vary with the 11 year cycle. Long term variability of
solar activity may be important for modeling climate changes on Earth.
Using seismology, the internal angular velocity of the sun has been
determined with ever increasing precision. This provides important
constraints on how the solar dynamo works.

The topics covered by this session include
-helioseismology
-internal angular velocity and dynamo
-long term variability and effects on the climate
-magneto-helioseismology
-seismology of the lower solar atmosphere
-coronal seismology (local and global)

Preliminary List of Solicited Speakers

Co-Sponsorship

General Statement
The information contained hereafter has been compiled and uploaded by the Session Organizers via the "Organizer Session Form". The Session Organizers have therefore the sole responsibility that this information is true and accurate at the date of publication, and the conference organizer cannot accept any legal responsibility for any errors or omissions that may be made, and he makes no warranty, expressed or implied, with regard to the material published.



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