Stellar Rotation: Proceedings of the IAU Colloquium Held at the Ohio State University, Columbus, O. , U. S. A. , September 8-11 1969

The International Astronomical Union Colloquium on Stellar Rotation was held at the Ohio State University in Columbus, Ohio, U.S.A. from September 8th through 11 th, 1969. Forty-four scientists from Argentina, Belgium, Canada, England, Finland, East and West Germany, Italy, Israel, Japan, The Netherlands, and the United States attended and participated in the Colloquium. The present volume, which parallels the actual program closely, contains the papers presented at the Colloquium plus most of the discussion following those papers. The Colloquium was sponsored by the International Astronomical Union, the Ohio State University, and the National Science Foundation. It is a pleasure to record my thanks to these organizations and especially to Dr. Geoffrey Keller, Dean of the College of Mathematics and Physical Sciences of the Ohio State University, and to Prof. C. de Jager, Assistant General Secretary of the International Astronomical Un­ ion, for their kind cooperation. I am also grateful to H. A. Abt, J. Hardorp, R. P. Kraft, Mrs. A. Massevitch, M. Plavec, 1. W. Roxburgh, and E. Schatzman of the Organizing Committee, as well as A. J. Deutsch and G. W. Collins, II, for their help in planning the Colloquium­ all of them offered valuable suggestions toward organizing the program. Front Matter....Pages I-XVI Front Matter....Pages 1-1 Observed Rotational Velocities of Single Stars (Review Paper)....Pages 3-8 Rotation and Stellar Interiors (Review Paper)....Pages 9-19 A Simple Method for the Solution of the Stellar Structure Equations Including Rotation and Tidal Forces....Pages 20-29 The Interaction of Rotation with Convection....Pages 30-36 Rotational Perturbation of a Radial Oscillation in a Gaseous Star....Pages 37-38 Rotational Velocities of Evolved A and F Stars....Pages 39-47 Rotation and Evolution of Be Stars....Pages 48-59 Evolution of a Rotating Star of Nine Solar Masses....Pages 60-62 Evolution of Rapidly Rotating B-Type Stars....Pages 63-72 On the Loss of Angular Momentum from Stars in the Pre-Main Sequence Phase....Pages 73-81 Front Matter....Pages 83-83 The Effects of Rotation on the Atmospheres of Early-Type Main-Sequence Stars (Review Paper)....Pages 85-109 On the Effect of Rotation on Stellar Absorption Lines....Pages 110-114 Observations of Stellar Rotation and Line Strengths for OB Stars....Pages 115-115 Rotating Stellar Atmospheres and the Energy Distribution of Altair....Pages 116-121 Rotation and Macroturbulence in Supergiant Stars....Pages 122-129 Front Matter....Pages 131-131 Rotation in Close Binaries (Review Paper)....Pages 133-146 Fission and the Origin of Binary Stars....Pages 147-156 Structure of Close Binaries. I: Polytropes....Pages 157-164 Rotational Correlation in Binary Stars....Pages 165-177 The Rotation of the Main-Sequence Components of Algol-Type Semi-Detached Eclipsing Binaries....Pages 178-186 Front Matter....Pages 131-131 Binary Orbit Perturbations and the Rotational Angular Momentum of Stellar Interiors....Pages 187-192 Stellar Rotation in Open Clusters (Review Paper)....Pages 193-203 Calibration of Intermediate-Band Photometric Parameters and V Sin i Effects....Pages 204-206 Maxwellian Distributions for Stellar Rotations....Pages 207-218 On the Rotation of A-Type Stars....Pages 219-226 A Statistical Treatment of the Stellar Rotational Velocities which Considers the Break-up Limit....Pages 227-248 On the Uv Cet-Type Star Rotation....Pages 249-253 The Rotation of the Ap Stars from the Point of View of the Rigid Rotator Model....Pages 254-263 On the Theory of Rotating Magnetic Stars....Pages 264-268 Magnetic Braking and the Oblique Rotator Model....Pages 269-273 Significance of Time Variations in the Be Phenomenon....Pages 274-282 The Rotation of the Be Star γ Cas....Pages 283-286 Front Matter....Pages 287-287 The Rotation of the Sun (Review Paper)....Pages 289-317 On the Equatorial Acceleration of the Sun....Pages 318-320 Spectroscopic Observations of Differential Rotation with Height in the Solar Envelope....Pages 321-328 Spin Down of Boussinesq Fluid in the Circular Cylinder, as a Simulation of the Solar Spin-Down Procedure....Pages 329-339 Thermal Stability of Nonspherical Stars and the Solar Oblateness Problem....Pages 340-345 Differential Rotation in the Solar Interior....Pages 346-351 Solar Oblateness and Differentially Rotating Polytropes....Pages 352-355 The International Astronomical Union Colloquium on Stellar Rotation was held at the Ohio State University in Columbus, Ohio, U.S.A. from September 8th through 11 th, 1969. Forty-four scientists from Argentina, Belgium, Canada, England, Finland, East and West Germany, Italy, Israel, Japan, The Netherlands, and the United States attended and participated in the Colloquium. The present volume, which parallels the actual program closely, contains the papers presented at the Colloquium plus most of the discussion following those papers. The Colloquium was sponsored by the International Astronomical Union, the Ohio State University, and the National Science Foundation. It is a pleasure to record my thanks to these organizations and especially to Dr. Geoffrey Keller, Dean of the College of Mathematics and Physical Sciences of the Ohio State University, and to Prof. C. de Jager, Assistant General Secretary of the International Astronomical UnƯ ion, for their kind cooperation. I am also grateful to H.A. Abt, J. Hardorp, R.P. Kraft, Mrs. A. Massevitch, M. Plavec, 1. W. Roxburgh, and E. Schatzman of the Organizing Committee, as well as A.J. Deutsch and G.W. Collins, II, for their help in planning the ColloquiumƯ all of them offered valuable suggestions toward organizing the program Proceedings of the IAU Colloquium held at the Ohio State University, Columbus, Ohio, September 8-11, 1969