All Assessment Questions Answered Complete

Pagina 1

Contents 1 ASTRONOMY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.1 How do we get information on the surface temperature of a Star? . . . . . . . . 4 1.2 How Can We Measure the Distance of a Star? . . . . . . . . . . . . . . . . . . . 4 1.3 Origin of discrete spectral lines; information they carry out . . . . . . . . . . . . 4 1.4 Classification of spectral lines: why do their intensity depend on the temperature? 4 1.5 What is the Hertzsprung Diagram? . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.6 How can we get information on the mass of a Star? . . . . . . . . . . . . . . . . 6 1.7 Why do Stars use fusion and not fission? How can protons meet? . . . . . . . . 6 1.8 PP chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.8.1 PP-I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.8.2 PP-II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.8.3 PP-III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.9 CNO Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.10 How is it possible to produce heavier elements than iron? . . . . . . . . . . . . . 8 1.11 Degenerate Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.12 Evolution of Stars according to their mass . . . . . . . . . . . . . . . . . . . . . 9 1.13 Type Ia and Type I Supernovae . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.14 Main Properties of a Neutron Star . . . . . . . . . . . . . . . . . . . . . . . . . 10 1.15 Black Holes: Conditions for their Formation . . . . . . . . . . . . . . . . . . . . 10 1.16 Interstellar Medium: Composition, Heating, and Extinction . . . . . . . . . . . . 10 1.17…