Overview

This text focuses on the advances in our understanding of solar convection and activity, and on new methods and results of helioseismic diagnostics of the internal structures and dynamics of solar convection and active regions. The methods of local helioseismology (time-distance tomography, ring-diagram analysis, acoustic imaging, and holography) have provided promising results on the deep structure of large-scale convection and flows, emerging active regions, and sunspots. The book includes reviews and contributed papers presented at the SOHO-9 Workshop held on July 12-15, 1999, at Stanford University, California, USA. It provides a comprehensive overview of the current status of the field and presents new ideas and approaches to helioseismic diagnostics and theoretical modelling of the physical processes inside the Sun. The book is recommended for graduate students and specialists in solar physics, astrophysics, and geophysics.

Full Product Details

Author:   Zdenek Svestka ,  Alexander G. Kosovichev ,  John W. Harvey ,  Thomas L. Duvall, Jr.
Publisher:   Springer
Imprint:   Springer
Edition:   Reprinted from SOLAR PHYSICS, 192:1-2 and 193:1-2 (partly), 2000
Dimensions:   Width: 15.50cm , Height: 3.10cm , Length: 23.50cm
Weight:   2.200kg
ISBN:  

9780792365204

ISBN 10:   0792365208
Pages:   578
Publication Date:   31 August 2000
Audience:   College/higher education ,  Professional and scholarly ,  Postgraduate, Research & Scholarly ,  Professional & Vocational
Format:   Hardback
Publisher's Status:   Active
Availability:   In Print  
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Table of Contents

I. Theories of Solar Convection, Rotation, and Activity.- Towards Understanding Solar Convection and Activity.- Fluid Dynamics and MHD of the Solar Convection Zone and Tachocline: Current Understanding and Unsolved Problems.- Can We Get the Bottom B?.- The Coupling of Solar Convection and Rotation.- Realistic Solar Convection Simulations.- Solar Magnetoconvection.- The Solar Dynamo and Emerging Flux.- On the Twist of Emerging Flux Loops in the Solar Convection Zone.- II. Helioseismic Tomography.- Time-Distance Inversion Methods and Results.- Time-Distance Helioseismology with f Modes as a Method for Measurement of Near-Surface Flows.- Travel Time Sensitivity Kernels.- Calculation of the Sun’s Acoustic Impulse Response by Multi-Dimensional Spectral Factorization.- Ray Travel Time and Distance for the Planar Polytrope.- The Parabolic Wave Equation in Local Helioseismology.- Sensitivity Kernels for Time-Distance Inversion.- III. Acoustic Imaging and Holography.- Acoustic Imaging of Solar Active Regions.- Basic Principles of Solar Acoustic Holography.- Helioseismic Holography of Active-Region Subphotospheres.- Phase-Sensitive Holography of Solar Activity.- Stochastic Seismic Emission from Acoustic Glories and the Quiet Sun.- IV Ring-Diagram Analysis.- Solar Shear Flow Deduced from Helioseismic Dense-Pack Samplings of Ring Diagrams.- Near-Surface Flow Fields Deduced Using Correlation Tracking and Time-Distance Analyses.- Local Fractional Frequency Shifts Used as Tracers of Magnetic Activity.- V. Magnetic Fields and Oscillations.- Sunspot Oscillations: A Review.- Modelling p-Mode Interaction with a Spreading Sunspot Field.- Measuring Magnetic Oscillations in the Solar Photosphere: Coordinated Observations with MDI, ASP and MWO.- Interaction between Network and IntranetworkMagnetic Fields.- VI. Solar-Cycle Variations of the Internal Structure and Rotation.- Variations in Solar Sub-Surface Rotation from GONG Data 1995-1998.- Time Variability of Rotation in Solar Convection Zone from SOI-MDI.- Possible Solar Cycle Variations in the Convection Zone.- Solar Cycle Variation in Solar /-Mode Frequencies and Radius.- Solar Cycle Variations of Large-Scale Flows in the Sun.- Does the Tachocline Show Solar Cycle Related Changes?.- Empirical Estimate of p-Mode Frequency Shift for Solar Cycle 23.- VII. Solar Convective Structures and Oscillations.- The Photospheric Convection Spectrum.- Supergranule and Mesogranule Evolution.- Supergranulation Rotation.- The Potential of Solar High-Degree Modes for Structure Inversion.- Investigating the Excitation of Acoustic Modes Using Homomorphic Deconvolution.- Response of the Radial Stratification at the Base of the Convection Zone to the Activity Cycle.- Mode Mixing by a Shallow Sunspot.

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