Surface Inhomogeneities on Late-Type Stars

For the first time the various methods available for imaging surface structures of active late-type stars are presented. The book addresses astrophysicists and graduate students in astronomy.

Inhalt
Surface inhomogeneities on late-type stars.- Models of starspots and results.- Information limit optimization: Starspot solutions for eclipsing RS CVn systems.- Major changes in polar starspots on V833 Tau.- Modelling stellar photospheric spots using spectroscopy.- Comparisons between Doppler Imaging and starspot modelling.- The polar-spot structure on HD26337.- Ultraviolet imaging of plage regions on late-type stars.- A new approach to doppler imaging of late-type stars.- Fluorescence-induced surface inhomogeneities and ejection and trapping of plasma by the K dwarf component of V471 Tauri.- Influence of starspots on internal stellar structure.- The synchronization of binary components from the motion of starspots.- Spectroscopic signatures of active regions on main sequence stars.- Physical models of solar and stellar spots.- Lithium in RS CVn binaries and related chromospherically active stars.- Relationship of starspots to other indicators of stellar activity.- Sunspots: An observational overview.- Mapping magnetic fields on rapidly rotating stars.- CaII K line observations of solar stars.- UV observations of sunspots.- Starspot lifetimes from long-term photometry.- The effect of surface inhomogeneities on total solar irradiance.- Oscillations & seismological diagnostics of sunspots.- Surface mapping of slowly rotating, cool stars using line bisector variations.- Surface brightness characteristics of W Ursae Majoris.- Automated photometric telescopes in the study of active stars.- Modelling inhomogeneities on B and A type magnetic peculiar stars.- Surface inhomogeneities on Capella.- Multi-site spectroscopic networks for the study of late-type stars.- Flaring and quiescent X-ray emission from the RS CVn system II Peg.- Summary and conclusions.- The August 1989 Spotlightcurve of II Peg and related flare activity.- Spot characteristics of contact binaries.- Observations of AB Dor at 8.4 GHz and interpretation.- Optical photometry & UV spectroscopy of CC Eri IN Nov 1989.- Numerical simulations of flares on late-type stars: Hydrodynamics and X-ray spectra.- Non-local thermal conduction in solar and stellar coronal loops.- Phase dependent variations of the H? line in chromospherically active stars.- Long-term variability of active stars.- Vilnius photometry of the typical and suspected chromospherically active stars.- The UV spectrum of the RS CVn binary SZ PSc.- Short time-scale changes in the V-band light-curve of II Peg: Flare, companion or prominence?.- Proposed upgrade of the McMath solar/stellar Telescope to a 4 m aperture.- Surface inhomogeneity on T Tau stars and the structure of their stellar winds.- On the dynamics of the emerging pre-flare magnetic configuration.- Spots of AR Lacertae.- Modelling of the large X-ray flare on II Peg observed with GINGA.- Light curve analysis of stars with more than one spot.- A semi-analytical model of stellar flares.- Sunspot group braking and photometric period variations in spotted stars.- Statistics of magnetic cycles in late-type single and close binary stars.- On an unusual correlation for flare stars.- On spectra of some pleiades flare stars.- Electron densities and temperatures in solar and stellar atmospheres.- On the AR Lac active regions.- A search for rotational modulation of the lithium line in spotted stars.- FK Comae A decrease of the period?.- On variability of TZ Ori.- Li abundances and chromospheric activity in F, G and K southern stars.- X-rays from both components of the flare star binary Gliese 867.- Characterization of long-term X-ray variability in a sample oflate-type stars.- Radial velocity measures of suspected chromospherically active and RSCVn-like stars.- Optical properties of cool stars discovered by EXOSAT.