Advances in Astronomy and Astrophysics - 1st Edition - ISBN: 9781483199238, 9781483224268

Advances in Astronomy and Astrophysics, Volume 5

1st Edition

Editors: Zdeněk Kopal
eBook ISBN: 9781483224268
Imprint: Academic Press
Published Date: 1st January 1967
Page Count: 368
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Table of Contents


Contributors to Volume 5

Contents of Previous Volume

The Zodiacal Light

I. Introduction

II. The Zodiacal Light

III. The Solar Corona

IV. Scattering by Dust Particles and the Interpretation of Coronal and Zodiacal Light Observations

V. Concluding Remarks

References

Three-Dimensional Periodic Oscillations About L1, L2 and L3

I. Introduction

II. Equations—General Properties

III. Analytical Treatment

IV. Numerical Treatment

V. Stability of First Order

VI. Presentation of the Results

VII. Appendix

References

Secular Variation of Mass and the Evolution of Binary Systems

I. Introduction

II. General Equations of Motion of a Body with Variable Mass

III. Analytic Solutions for the Case of Isotropically Decreasing Mass

IV. Interaction Between the Ejected Mass and the Two Stars

V. High Rates of Mass Ejection

VI. Motion around an Attracting Center of Variable Mass, Surrounded by a Resisting Medium

VII. Secular Increase in Mass

VIII. Conclusions

References

The Periodicity of the Sunspot Groups

I. Introduction

II. Resolution of the Wolf Number and the Spotted Area into Primary Parameters

III. Methods of Determining the Number of Spot Groups Formed and Their Importance Characteristics

IV. Time Behavior of the Number of Spot Groups Formed and Their Average Importance

V. Formation Frequency of Spot Groups and Their Importance in Dependence on Heliographie Latitude

VI. General Conclusions

References

Compact and Dispersed Cosmic Matter, Part I

I. Periods of Progress in the Twentieth Century

II. The Morphological Approach to Discovery, Invention, and Research in Astronomy

III. Specific Vistas Achieved through the Morphological Approach

IV. Observational Discoveries Made as a Result of the Morphological Approach

References

Author Index

Subject Index

Description

Advances in Astronomy and Astrophysics, Volume 5 is a collection of papers that deals with the Zodiacal light, three dimensional periodic oscillations, the secular variation of mass, and the evolution of binary systems. Some papers discuss the periodicity of the sunspot groups, as well as compact and dispersed cosmic matter. One paper notes that the brightness of the zodiacal light continues to increase right up to the limb of the Sun, where it merges with parts of the solar corona. Another paper discusses analytically and numerically the three families of three-dimensional motions where the members of each family pass very close to one of three equilibrium points. One paper describes the loss of mass in the Sun as being (1) caused by electromagnetic or corpuscular radiation that occurs at a slow rate, or (2) by an explosion of a nova or supernova. One paper examines the periodicity of solar activities, the physical conditions of sunspots, chromospheric flares, prominence, and magnetic fields. The paper notes that different periodicity laws govern the formation frequency and importance of spot groups. The behavior of spot groups also depends on the periodicity process of solar activity. The collection can prove valuable for astro-physicists, astronomers, geochemists, and mathematicians whose works involve cosmology and astronomy.


Details

No. of pages:
368
Language:
English
Copyright:
© Academic Press 1967
Published:
Imprint:
Academic Press
eBook ISBN:
9781483224268

About the Editors

Zdeněk Kopal Editor