Asteroseismology Across the HR Diagram, Softcover reprint of the original 1st ed. 2003 Proceedings of the Asteroseismology Workshop Porto, Portugal 1–5 July 2002

We stand at the threshold of an exciting era of Asteroseismology. In a few months' time, the Canadian small-satellite asteroseismology mission MOST will be laun­ ched. Danish and French missions MONS and COROT should follow, with the ESA mission Eddington following in 2007/8. Helioseismology has proved spec­ tacularly successful in imaging the internal structure and dynamics of the Sun and probing the physics of the solar interior. Ground-based observations have detected solar-like oscillations on alpha Centauri A and other Sun-like stars, and diagnostics similar to those used in helioseismology are now being used to test and constrain the physics and evolutionary state of these stars. Multi-mode oscillations are being observed in an abundance of other stars, including slowly pulsating B stars (SPB stars), delta Scuti stars, Ap stars and the pulsating white dwarfs. New classes of pulsators continue to be discovered across the Hertzsprung-Russell diagram. For good reason it was decided to entitle our conference 'Asteroseismology Across the HR Diagram' . Yet the challenges still to be faced to make asteroseismology across the HR diagram a reality are formidable. Observation, data analysis and theory all pose hard problems to be overcome. In conceiving this meeting, the aim of the organisers was to facilitate a cross-fertilization of ideas and approaches between researchers working on different pulsators and with different areas of expertise. We venture to suggest that in this the conference was a great success.

Space and Ground Based Data for Asteroseismology.- STARE Results on a Single Field: Tens of New Pulsating Stars.- The Eddington Mission.- Present Observational Status of Solar-Type Stars.- Present Observational Status of the Intermediate Mass Stars.- Present Observational Status of High Mass Pulsating Stars.- Old Pulsators: White Dwarfs and their Immediate Precursors.- ? Scuti Pulsations in Pre-Main Sequence Stars.- Solar-like Oscillations in Semiregular Variables.- Discovery of a New Class of Pulsating Stars: Gravity Mode Pulsators among Subdwarf B Stars.- Recent Observations of PMS ? Scuti Stars.- Multicolour Photometry for Mode Identification.- High-Resolution Spectroscopy for Mode Identification.- Theoretical Clues for Mode Identification — Instability Ranges and Rotational Splitting Patterns.- Peakbagging for Solar-Like Stars.- Mode Identification from Line Profiles Using the Direct Fitting Technique.- Statistical Revision of the Moment Method.- An Improved Method of Photometric Mode Identification: Applications to Slowly Pulsating B, ? Cephei, ? Scuti and ? Doradus Stars.- Photometric Nonadiabatic Observables in Rotating ß Cephei Models.- Gravity Modes in Delta Scuti Stars.- Seismic Inference Using Genetic Algorithms.- Stellar Inversions.- On the Principal Asteroseismic Diagnostic Signatures.- Diagnostics of the Internal Structure of Stars Using the Differential Response Technique.- Stellar Convection.- Mixing and Diffusion in Stars.- Are Pulsation and Magnetic Axes Aligned in roAp Stars?.- Seismic Diagnostics of Stellar Convection Treatment from Oscillation Amplitudes of p-Modes.- Of Variability, or its Absence, in HgMn Stars.- A Study of the Solar-Like Properties of ? Hydri.- Giant Vibrations in Dip.- Stochastic Excitation of Gravity Waves by Overshooting Convection in Solar-Type Stars.- p-Mode Oscillations of ? Cen A.- Outstanding Issues for the Pulsation of Young Stars.- Outstanding Issues for Post-Main Sequence Evolution: Instability Strips and Excitation of Modes in Compact Pulsators.- Hot Subdwarfs: Magnetic, Oscillatory and other Physical Properties.- Nonlinearity of Nonradial Modes in Evolved Stars.- Summary: Problems, Connections and Expectations.