Astrophysics: A Topical Symposium Commemorating the Fiftieth Anniversary of the Yerkes Observatory and a Half Century of Progress in AstrophysicsJoseph Allen Hynek |
Contents
INTRODUCTION | xii |
Nature of Stellar InteriorsStellar Spectra and Stellar Evolu | xii |
INTERPRETATION OF NORMAL STELLAR SPECTRA | 29 |
Copyright | |
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Common terms and phrases
absorbing absorption coefficient absorption lines abundances assumed astrophysical Balmer bands bright carbon cepheids chromosphere clouds collisions cometary comets components computed condensation constant continuous absorption continuous spectrum corresponding curve of growth density derived determined disk distance distribution eclipsing effect electron elements emission lines energy equation equilibrium excitation factor function galactic gaseous grains helium hydrogen lines intensity interstellar ionization ionization potential km/sec layers light curve long-period variables luminosity magnitude mass maximum mean measures molecular molecules motion nucleus number of atoms Observatory observed obtained orbit parallax parsecs particles period photosphere planetary planets pressure problem protoplanets radial velocity radiation radiative radius ratio region relative rotation scattering solar nebula spectral class spectral lines spectral type spectroscopic binaries stars stellar atmospheres Struve sunspot supergiants surface Tauri stars temperature theoretical theory tion Unsöld variation velocity curve visual wavelength