The Nebular Variables : International Series of Monographs in Natural Philosophy

The Nebular Variables focuses on the nebular variables and their characteristics. Discussions are organized by type of nebular variable, namely, RW Aurigae stars, T Orionis stars, T Tauri stars, and peculiar nebular objects. Topics range from light variations of the stars to their spectroscopic and physical characteristics, spatial distribution, interaction with nebulosity, and evolutionary features. This volume is divided into four sections and consists of 25 chapters, the first of which provides general information on nebular variables, including their stellar associations and their classification into three distinct groups: RW Aurigae, T Orionis and T Tauri variables. These three groups of nebular variables are examined in more detail in the chapters that follow in terms of their light variations, spatial distribution, interaction with nebulosity, and spectroscopic, physical, and evolutionary characteristics. Visual and photoelectric light curves, mass loss determined spectroscopically, luminosities, and stellar radii are considered. The book also explores the possibility that some of the nebulae associated with certain nebular variables have evolved from a protoplanetary disc of material consisting of both gas and solid matter. Peculiar nebular variables such as the long period variable R Aquarii, Herbig-Haro objects, symbiotic variables, and infrared stars are analyzed as well. This book is written primarily for students and teachers of astronomy. Content: Front Matter , Page iii Copyright , Page iv List of Plates , Page vi Foreword , Page vii Acknowledgements , Page ix Introduction , Pages 1-2,CP1,3-6 CHAPTER 1 - General information on Nebular Variables , Pages 7-14 CHAPTER 2 - Light variations of RW Aurigae stars , Pages 17-24 CHAPTER 3 - Spectroscopic characteristics , Pages 25-28 CHAPTER 4 - Physical characteristics of RW Aurigae stars , Pages 29-32 CHAPTER 5 - Spatial distribution , Pages 33-36,CP2 CHAPTER 6 - Interaction with nebulosity , Pages 37-40 CHAPTER 7 - Evolutionary characteristics , Pages 41-53 CHAPTER 8 - Light variations of T Orionis stars , Pages 57-66 CHAPTER 9 - Spectroscopic characteristics , Pages 67-70 CHAPTER 10 - Physical characteristics of T Orionis stars , Pages 71-74 CHAPTER 11 - Spatial distribution , Pages 75-76,CP3,77-78 CHAPTER 12 - Interaction with nebulosity , Pages 79-82 CHAPTER 13 - Evolutionary characteristics , Pages 83-88 CHAPTER 14 - Light variations in T Tauri stars , Pages 91-99 CHAPTER 15 - Spectroscopic characteristics , Pages 100-108 CHAPTER 16 - Physical characteristics of T Tauri stars , Pages 109-113 CHAPTER 17 - Spatial distribution , Pages 114-119 CHAPTER 18 - Interaction with nebulosity , Pages 120-122,CP4,CP5,123-124 CHAPTER 19 - Evolutionary characteristics , Pages 125-136 CHAPTER 20 - Evidence of protoplanetary systems , Pages 137-140 CHAPTER 21 - R Aquarii , Pages 143-146 CHAPTER 22 - Herbig-Haro objects , Pages 147-148,CP6,149-152 CHAPTER 23 - Symbiotic variables , Pages 153-170 CHAPTER 24 - Peculiar nebular objects , Pages 171-182 CHAPTER 25 - Infrared stars , Pages 183-197 Variable Star Index , Pages 199-200 Name Index , Pages 201-204 Subject Index , Pages 205-208 OTHER TITLES IN THE SERIES NATURAL PHILOSOPHY , Pages 209-210