Fig8_4 Stellar mass and lifetime on the main sequence

Fig8_4 Stellar mass and lifetime on the main sequence

Fig. 8.4 . The relation between a starís luminosity (left vertical axis), in units of the Sunís luminosity denoted L?, and the starís effective disk temperature (bottom horizontal axis) in degrees kelvin, designated K, for the main-sequence stars in the Hertzsprung-Russell diagram. The stellar masses that are given along the main-sequence curve are in units of the Sunís mass, denoted M?. Stars of higher mass are hotter and more luminous. All of these stars shine by hydrogen burning with a lifetime that is also denoted along the main-sequence curve. More massive stars burn their hydrogen fuel at a faster rate and have shorter lifetimes.

Copyright 2010, Professor Kenneth R. Lang, Tufts University