Lecture 2

 

  1. Hertzsprung-Russell (H-R) diagram

 

 

  1. Principal sequences on the H-R diagram

 

 

 

 

 

 

  1. Spectroscopic parallax and luminosity class

 

 

 

 

 

 

 

  1. Binary stars

 

 

 

  1. Types of binaries

 

 

 

 

 

  1. Light curves

 

 

 

 

 

  1. Determining stellar masses in binary systems using Kepler’s III law

 

 

 

 

 

 

  1. Mass-luminosity relationship

 

 

 

 

 

 

 

  1. Introduction to interstellar medium: contents and distribution

 

 

  1. Types of nebulae

 

 

 

 

 

  1. Effect of the interstellar medium on starlight

 

 

 

 

 

  1. 21-cm radiation

 

 

 

 

 

 

  1. Stellar formation

 

 

 

  1. Jean’s mass and factors affecting gravitational stability of a cloud

 

 

 

 

 

  1. Stages of star formation.

 

 

 

 

 

  1. Onset of nuclear fusion and hydrostatic stability

 

 

 

 

 

  1. Highest and lowest stellar mass

 

 

 

 

 

  1. T Tauri stars and Herbig-Haro objects

 

 

 

 

 

  1. Planetary disks