Sternoberflächen-Doppelsterne Stellar surfaces-binaries
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書誌事項
Sternoberflächen-Doppelsterne = Stellar surfaces-binaries
（Handbuch der Physik / herausgegeben von S. Flügge = Encyclopedia of physics / editor in chief, S. Flügge, Bd. 50 . Astrophysik = Astrophysics ; 1）
Springer-Verlag, 1958
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Includes bibliographies and indexes
内容説明・目次
内容説明
Sect. 13. 203 and the geometric elements for the large orbit are re-computed. From the analysis it cannot be decided whether the third body is close to the visual primary or secondary component; this can only be decided by measuring the orbital motion on an astrometric background of other stars (Chap. IV). In accurate long-term problems the perspective change in the apparent orbit due to motion of the center of mass in the line of sight, must be taken into account. In the future this feature of orbital analysis will undoubtedly become more and more important. An example of the required reduction is the orbital analysis of the 61 Cygni system by A. FLETCHER!. 1890 90 1960 0 Fig. 11. Relative orbit of the visual binary Kruger 60. * visual observations. 0 photographic observations. IV. Analysis of orbit referred to external reference system. 13. Introduction. In the preceding Chap. III we dealt with the analysis of the relative orbit of the two components of a binary star. We now extend the analysis to the measurements and orbits of the individual components referred to a system of, presumably distant, reference stars.
Both micrometer measure- ments and, particularly, meridian circle positions have been successfully employed in the past; the current observing technique is primarily long-focus photographic astrometry. The problems studied include those of mass-ratio and parallax, and of perturbations. Long-focus technique and analysis are in the first place suitable for the so-called resolved binaries, whose components are clearly separated.
目次
- Les classifications spectrales des etoiles normales.- I. La theorie du type spectral.- II. Les premieres classifications d'apres I'aspect des spectres.- III. Comparaison de classifications spectrales.- IV. La variation du type spectral avec T? et P?.- V. Les classifications d'Upsal et de Stockholm.- VI. Les classifications a deux dimensions derivees de Harvard.- VII. La classification des spectres tres peu disperses.- VIII. Classification par le spectre continu des etoiles.- IX. La classification des etoiles par photometrie.- X. Classification des etoiles a raies anormalement fortes ou faibles.- XI. Conclusion.- Bibliographie generale.- Stars with Peculiar Spectra.- A. Metallic-line stars.- B. High-velocity stars of types F, G and K.- C. Stars showing carbon features of abnormal strength.- General references.- Les bandes moleculaires dans les spectres stellaires.- I. Bandes moleculaires dans le spectre solaire.- II. Utilisation des bandes moleculaires pour la classification spectrale
- description generale des bandes stellaires.- III. Absorption continue due aux molecules.- IV. Determinations de temperatures basees sur les bandes moleculaires.- V. Interpretation du comportement des bandes moleculaires dans les etoiles froides.- Conclusions.- Bibliographie.- Die Spektren der planetarischen Nebel.- I. Allgemeine Eigenschaften der planetarischen Nebel.- II. Die Spektren der planetarischen Nebel.- Literatur.- The Spectra of the White Dwarfs.- I. Introduction.- II. Relevant observational data.- III. The spectroscopic results.- IV. Description of typical spectra.- V. Theoretical interpretations.- General bibliography.- Visual Binaries.- I. Observational.- II. Theoretical.- III. Analysis of relative orbit.- IV. Analysis of orbit referred to external reference system.- V. Masses and luminosities of visual binaries.- VI. Special topics.- General references.- The Eclipsing Binaries.- 1. Introduction.- 2. Definitions.- 3. Formulae used in computing the elements.- 4. The absolute dimensions of eclipsing variables.- 5. Eclipsing variables and astrophysical problems.- 6. Population of eclipsing variables in the galaxy.- 7. Eclipsing binaries in other galaxies.- 8. Conclusion.- Spectroscopic Binaries.- 1. Introduction.- 2. The determination of orbital elements.- 3. Apsidal motion.- 4. The determination of stellar masses.- 5. Rotation of binary stars.- 6. Peculiar line profiles.- 7. The luminosities of binary stars from spectroscopic studies.- 8. Departures from the mass-luminosity relation in close binary stars.- 9. Statistical studies of spectroscopic binaries.- 10. Gaseous motions and other effects.- 11. The nature of emission lines in close binaries.- 12. The peculiar system UX Monocerotis.- 13. Recent developments regarding the evolution and origin of binary stars.- 14. Concluding remarks.- General references.- Theorie generale des atmospheres stellaires.- A. Position du probleme.- I. Le rayonnement des etoiles.- II. Ordre de grandeur des parametres caracteristiques d'une atmosphere stellaire.- III. Le champ de rayonnement et son interaction avec la matiere.- B. Conditions locales.- I. L'equilibre thermodynamique local.- II. Excitation, ionisation, dissociation.- III. Absorption, diffusion.- C. Problemes de transfert.- I. Atmosphere semi-infinie. Cas gris.- II. Atmosphere semi-infinie. Cas reel.- III. Divers problemes de transfert.- D. Modeles d'atmospheres stellaires.- I. Le calcul des modeles.- II. Examen des hypotheses de base.- III. Modeles empiriques de la photosphere solaire.- E. Theorie des raies d'absorption dans les spectres stellaires.- I. Coefficient d'absorption dans les raies.- II. Le transfert pour les raies.- III. Contours des raies.- IV. Intensites totales des raies.- F. Applications de la theorie des raies d'absorption, dans les spectres stellaires.- I. Introduction.- II. Le spectre des raies de I'hydrogene.- III. Composition chimique. Temperatures effectives et gravites.- IV. Turbulence: Amortissement par chocs.- V. Signification theorique de la classification spectrale des etoiles.- VI. Effet de la rotation des etoiles sur les contours des raies.- G. Les atmospheres externes des etoiles.- Bibliographie generale.- Theorie der planetarischen Nebel.- I. Die mathematische Formulierung der wichtigsten Elementarprozesse in den Nebelhullen.- II. Zur Theorie des Strahlungsumsatzes in den Nebelhullen.- III. Theorie der Ionisationsschichtung.- IV. Die Zanstra-Theorie (Temperaturen der Zentralsterne).- Zusammenfassende Darstellungen.- Sachverzeichnis (Deutsch-Englisch).- Subject Index (English-German).- Table des Matieres (Francais).
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