Introduction to Stellar Astrophysics: Volume 2

ISBN-13: 9780521348706 / Angielski / Miękka / 1989 / 264 str.

Erika Bohm-Vitense

Opis

This work conveys the basic physical ideas and laws used in the study of the outer layers of a star. The stellar atmosphere emits the light which we see. The only layers of a star where we can get direct information about temperature, pressure and composition are in the atmosphere. This account first introduces stellar magnitudes, spectra and temperatures. This is followed by a full discussion of radiative transfer in a stellar atmosphere, which leads to descriptions of line formation, the spectrum of hydrogen, and spectral analysis. Finally the structural components that are accessible, such as the convention zone, chromosphere, corona and mass outflow are described. The book will interest any student with a knowledge of physics and mathematics who needs to learn about stellar atmospheres.

Recenzje

"...an excellent introduction to analytical methods and comparison with observations." Virginia Trimble, Comments on Astrophysics

Spis treści

Preface; 1. Stellar magnitudes and stellar colors; 2. Stellar spectra; 3. Temperature estimates for stars; 4. Basics about radiative transfer; 5. Radiative transfer in stellar atmosphere; 6. The depth dependence of the source function; 7. The continuous absorption coefficient; 8. The influence of the non-greyness of the absorption coefficient; 9. The pressure stratification; 10. Theory of line formation; 11. The hydrogen lines; 12. Spectrum analysis; 13. Basics about non-local thermodynamics equilibrium; 14. The hydrogen convection zone; 15. Stellar chromospheres, transition layers, and coronae; 16. Stellar winds; Problems; References; Index.