A Brief History of Astronomy and Astrophysics by Kenneth R Lang

Author:Kenneth R Lang [Lang, Kenneth R]
Language: eng
Format: epub
ISBN: 9789813233850
Publisher: World Scientific
Published: 2018-09-15T00:00:00+00:00

Figure 9.3 Stellar mass-luminosity relation The observed mass-luminosity relation for main-sequence stars of absolute luminosity, L, in units of the solar luminosity, L, and mass, M, in units of the Sun’s mass, M. The straight line corresponds to a luminosity that is proportional to the fourth power of the mass.

Eddington replied that mathematicians often lack the physical insight needed to understand the stars. His practical approach, rooted in observations as well as mathematics, has usually withstood the test of time, and the mass-luminosity relation is now accepted as one of the fundamental results of stellar physics. It plays an important role in our understanding of the internal source of energy that keeps stars shining.

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