Chapters in this book

1. Frontmatteri
2. General Editor's Prefacev
3. Prefacevii
4. Contentsxi
5. CHAPTER I. New Windows on the Universe
6. On the Application of Interference Methods to Astronomical Measurements2
7. 2. A Test of a New Type of Stellar Interferometer on Sirius8
8. 3. Concerning Observations of Penetrating Radiation on Seven Free Balloon Flights13
9. 4. The Possibilities of Large Telescopes21
10. 5. A Rapid Coma-Free Mirror System27
11. 6. On the Discovery of Extraterrestrial Radio Waves30
12. 7. Searching for Interstellar Communications36
13. 8. The Photoelectric Photometry of the Stars39
14. 9. The First Results Obtained from Photographs of the Invisible Side of the Moon53
15. 10. X-Ray and Extreme Ultraviolet Observations of the Sun56
16. 11. Evidence for X-Rays from Sources outside the Solar System62
17. 12. Infrared Observations of the Galactic Center67
18. 13. Interstellar Deuterium Abundance in the Direction of Beta Centauri75
19. CHAPTER II. The Solar System
20. 14. The Moon's Face: A Study of the Origin of Its Features80
21. 15. Of Atmospheres upon Planets and Satellites88
22. 16. On the Probable Existence of a Magnetic Field in Sun-Spots96
23. 17. How Could a Rotating Body such as the Sun Become a Magnet?106
24. 18. Polarization of the Moon and of the Planets Mars and Mercury108
25. 19. The Theory of Continental Drift111
26. 20. The Spectra of Venus, Mars, Jupiter, and Saturn under High Dispersion117
27. 21. The Mystery of Coronium and the Million-Degree Solar Corona120
28. 22. Corpuscular Influences upon the Upper Atmosphere125
29. 23. The Origin and Nature of Comets132
30. 24. Observations of a Variable Radio Source Associated with the Planet Jupiter143
31. 25. Solar Corpuscular Radiation and the Interplanetary Gas147
32. 26. Radiation Observations with Satellite 1958ε149
33. 27. The Hot Surface Temperature of Venus152
34. 28. Radar Determinations of the Rotations of Venus and Mercury160
35. 29. Mars as Viewed from Mariner 9167
36. 30. The Moon after Apollo177
37. 31. The Encounter Theories of the Origin of the Solar System182
38. 32. The Nebular Theory of the Origin of the Solar System192
39. 33. A Production of Amino Acids under Possible Primitive Earth Conditions203
40. CHAPTER III. Stellar Atmospheres and Stellar Spectra
41. 34. On the Radiation of Stars208
42. 35. Relations between the Spectra and Other Characteristics of Stars212
43. 36. Some Spectral Criteria for the Determination of Absolute Stellar Magnitudes221
44. 37. On the Radiative Equilibrium of Stars225
45. 38. Ionization in the Solar Chromosphere236
46. 39. The Abundances of the Chemical Elements in Stellar Atmospheres243
47. 40. On the Rotation of Stars254
48. 41. Intensity Measurement of the Fraunhofer Lines in the Wavelength Region 5,150 to 5,270 Å259
49. 42. Electron Affinity in Astrophysics264
50. 43. The Quantitative Analysis of the BO-Star τ Scorpii, Part II268
51. CHAPTER IV Stellar Evolution and Nucleosynthesis
52. 44. The Equivalence of Mass and Energy276
53. 45. The Internal Constitution of the Stars281
54. 46. The Mass-Luminosity Relation for Stars291
55. 47. Atomic Synthesis and Stellar Energy I, II303
56. 48. Element Transformation inside Stars. II309
57. 49. Energy Production in Stars320
58. 50. Nuclear Reactions in Stellar Evolution339
59. 51. Stellar Structure, Source of Energy, and Evolution342
60. 52. Nuclear Reactions in Stars without Hydrogen349
61. 53. Inhomogeneous Stellar Models II: Models with Exhausted Cores in Gravitational Contraction353
62. 54. Studies of Young Clusters and Stellar Evolution in the Early Phases of Gravitational Contraction364
63. 55. Synthesis of the Elements in Stars374
64. 56. Neutrinos from the Sun389
65. CHAPTER V. Variable Stars and Dying Stars
66. 57. Periods of Twenty-five Variable Stars in the Small Magellanic Cloud398
67. 58. On the Pulsations of a Gaseous Star and the Problem of the Cepheid Variables401
68. 59. Τ Tauri Variable Stars410
69. 60. Binary Stars among Cataclysmic Variables III : Ten Old Novae421
70. 61. The Discovery of White Dwarf Stars430
71. 62. On Dense Stars433
72. 63. Neutrino Theory of Stellar Collapse440
73. 64. Discovery of Circularly Polarized Light from a White Dwarf Star447
74. 65. On the Gravitational Field of a Point Mass according to the Einsteinian Theory451
75. 66. On the Theory of Stars456
76. 67. The Discovery of a Candidate Black Hole460
77. 68. Novae or Temporary Stars466
78. 69. On the Possible Existence of Neutron Stars469
79. 70. Spectra of Supernovae478
80. 71. The Crab Nebula481
81. 72. On the Nature of the Luminescence of the Crab Nebula488
82. 73. Energy Emission from a Neutron Star494
83. 74. Observation of a Rapidly Pulsating Radio Source498
84. 75. Rotating Neutron Stars as the Origin of the Pulsating Radio Sources505
85. CHAPTER VI. The Distribution of Stars and the Space between Them
86. 76. Investigations of the Spectrum and Orbit of Delta Orionis510
87. 77. Star Streaming514
88. 78. The Kinetic Energy of a Star Cluster520
89. 79. The Scale of the Universe523
90. 80. First Attempt at a Theory of the Arrangement and Motion of the Sidereal System542
91. 81. Star-Streaming and the Structure of the Stellar System550
92. 82. Observational Evidence for the Rotation of Our Galaxy554
93. 83. On the Dark Nebula NGC 6960566
94. 84. The Source of Luminosity of Gaseous Nebulae572
95. 85. The Origin of the Nebular Lines and the Structure of the Planetary Nebulae581
96. 86. The Physical State of Interstellar Hydrogen588
97. 87. Preliminary Results on the Distances, Dimensions, and Space Distribution of Open Star Clusters593
98. 88. The Solid Particles of Interstellar Space605
99. 89. The Polarization of Starlight613
100. 90. The Temperature of Interstellar Matter617
101. 91. Radio Waves from Space : Origin of Radiowaves627
102. 92. The Radio Frequency Detection of Interstellar Hydrogen633
103. 93. Some Features of Galactic Structure in the Neighborhood of the Sun638
104. 94. The Galactic System as a Spiral Nebula643
105. 95. Density Waves in Disk Galaxies652
106. 96. The Discovery of Protostars (?)656
107. 97. Radio Observations of OH in the Interstellar Medium666
108. 98. Galactic Magnetic Fields and the Origin of Cosmic Radiation671
109. 99. Cosmic Rays and Radio Emission from Our Galaxy677
110. 100. Expanding Stellar Associations and the Origin of the Runaway O and Β Stars685
111. CHAPTER VII. Normal Galaxies, Radio Galaxies, and Quasars
112. 101. Novae in Spiral Nebulae698
113. 102. A Spectrographic Investigation of Spiral Nebulae704
114. 103. Modern Theories of the Spiral Nebulae708
115. 104. Cepheids in Spiral Nebulae713
116. 105. Extra-Galactic Nebulae716
117. 106. A Relation between Distance and Radial Velocity among Extra-Galactic Nebulae725
118. 107. On the Masses of Nebulae and of Clusters of Nebulae729
119. 108. Nuclear Emission in Spiral Nebulae738
120. 109. The Resolution of Messier 32, NGC 205, and the Central Region of the Andromeda Nebula744
121. 110. A Revision of the Extra-Galactic Distance Scale750
122. 111. Redshifts and Magnitudes of Extra-Galactic Nebulae753
123. 112. On the Evolution of Galaxies763
124. 113. Fluctuations in Cosmic Radiation at Radio Frequencies774
125. 114. Positions of Three Discrete Sources of Galactic Radio-Frequency Radiation777
126. 115. Cosmic Radiation and Radio Stars779
127. 116. The Origin of Cosmic Radio Noise782
128. 117. Identification of the Radio Sources in Cassiopeia, Cygnus A, and Puppis A786
129. 118. The Nature of Cosmic Radio Sources792
130. 119. First True Radio Star?801
131. 120. The Discovery of Quasars803
132. 121. The Quasi-Stellar Radio Sources 3C 48 and 3C 273811
133. CHAPTER VIII. Relativity and Cosmology
134. 122. Explanation of the Perihelion Motion of Mercury by Means of the General Theory of Relativity820
135. 123. A Determination of the Deflection of Light by the Sun's Gravitational Field, from Observations Made at the Total Eclipse of May 29, 1919826
136. 124. Fourth Test of General Relativity: New Radar Result833
137. 125. On the Curvature of Space838
138. 126. A Homogeneous Universe of Constant Mass and Increasing Radius accounting for the Radial Velocity of Extra-Galactic Nebulae844
139. 127. On the Relation between the Expansion and the Mean Density of the Universe849
140. 128. The Cosmical Constants851
141. 129. The Steady-State Theory of the Expanding Universe853
142. 130. The Origin of Chemical Elements864
143. 131. The Evolution and Physics of the Expanding Universe866
144. 132. A Measurement of Excess Antenna Temperature at 4080 MHz873
145. Indexes
146. Author Index879
147. Subject Index889