Main Topics

Main Topics

Objective.The objective of the ASI is to examine our current understanding of stellar structure and evolution using various kinds of variable stars. In recent years, pulsation and oscillation-related phenomena, apsidal motion in close binaries and magnetic activity in some stars came out to be very important astrophysical tools in deciphering stellar structure.

Binary stars as an astrophysical tool. Eclipsing binaries as test of General Relativity. Period changes as a tool to study stellar evolution. Magnetic cycles in active close binaries. Stellar flares and relation (connection) with the underlying plasma. Coronae accross the HR diagram.

Helioseismology. Seismic sounding of the solar core. Asteroseismology: Theory versus observations. Stellar seismology from space. Asteroseismology of magnetic variables. New progress in Delta Scuti stars. Gamma Doradus stars.

Cataclysmic variables: Eclipse mapping and Doppler tomography.

Equation of state and opacity: Recent developments. Two-dimensional stellar evolution modeling including rotation and hydrodynamics. Variable stars expose the secrets of nucleosynthesis. Late stages of stellar evolution, supernova production.

Advances for space studies of stellar variability: Present and future. A proposed new scheme for classifying variable stars.

Photometry with intermediate-size telescopes. Techniques for reduction and analysis of data collected in a multi-site observing campaign.