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Ce volume contient les revues invitees et les presentations orales du Symposium VAl 181 Sounding Solar and Stellar Interiors, tenu a Nice du 30 septembre au 3 octobre 1996. Les posters presentes a cette conference 1 sont publies dans un volume separe. Depuis Ie lancement avec succes du satellite SoRO Ie 2 Decembre 1995, et apres des annees d'efforts importants dans Ie domaine de l'helio- et l'asterosismologie, il a semble approprie de tenir un symposium dedie aux consequences de la sismologie pour notre connaissance de la structure in terne du Soleil et des etoiles. Le but etait de presenter a la communaute entiere les nouveaux resultats de l'heliosismologie obtenus aussi bien par les experiences spatiales que par les reseaux exist ants au sol, ainsi que les avancees theoriques dans les domaines de la structure et de la physique de l'interieur solaire. Ce but a ete largement atteint: alors que SoRO ne fournissait des don nees que depuis environ 6 mois, la qualite des donnees heliosismologiques a ete largement amelioree, de nouvelles techniques ont ete elaborees comme la "telechronosismologie" (nom propose par D. Gough dans sa conclusion pour l'analyse temps-distance), et de nouveaux mecanismes physiques ont ete proposes pour tenter de reduire les differences persist antes entre Ie Soleil observe et les modeles standard.
List of contents
Sounding solar and stellar interiors: general introduction.- I : Helioseismology : From ground or space, a worldwide cooperation.- The state of art in helioseismic ground-based experiments.- Present status of the Taiwan Oscillation Network.- A review of space helioseismology.- Performance and first results from the GOLF instrument on SoHO.- First resulst from VIRGO on SoHO.- New Time-distance helioseismology results from the SOI/MDI experiment.- GOLF results: today's view on the solar modes.- Precision solar astrometry from SoHO/MDI.- Plane-wave analysis of SOI data.- II : Internal structure and rotation. Seismic inversions.- Theoretical solar models.- The seismic Sun.- The seismic structure of the Sun from GONG.- Structure inversions with the VIRGO data.- A seismic solar model deduced from the sound speed distribution and an estimate of the neutrino fluxes.- Stellar rotation and mixing.- Internal Solar rotation.- Internal structure and rotation of the Sun: First results from MDI data.- Internal rotation and dynamics of the Sun from GONG data.- III : Special session dedicated to Philippe Delache.- The scientific achievements of Ph. Delache.- Long-term solar-irradiance variability.- Giant planets seismology.- Apparent solar diameter and variability.- IV : Inputs from helioseismology to solar physics.- Solar activity and solar oscillations.- Excitation of solar acoustic oscillations.- An observational study of the interaction of impulsive and periodic perturbations in the solar atmosphere.- V : Asteroseismology : Theory and methods.- Sounding stellar interiors.- Asteroseismology: ground based observational methods.- Asteroseismology from space: COROT and other projects.- Three years of ANTENA: what we have done!.- VI : Results on some selected types of stars.-Asteroseismology of white dwarf stars.- Observational asteroseismology of ? Scuti stars.- Probing the interior of roAp stars: stellar tubas that sound like piccolos.- Conclusion.- Sounding solar and stellar interiors: Conclusion and prospects.- List of posters published in the poster volume.- Author Index.
Summary
Proceedings of the 181st Symposium of the International Astronomical Union held in Nice, France, September 30-October 3, 1996
