What is the approximate luminosity of a 0.5 M _$\odot$ main-sequence star? A) 0.09 L _$\odot$ B) 0.01 L _$\odot$ C) 0.2 L _$\odot$ D) 0.5 L _$\odot$ E) 0.7 L _$\odot$

Question

Quizplus · Accepted Answer

Main-sequence stars follow a mass-luminosity relationship where luminosity is approximately proportional to the mass raised to the power of 3.5. For a 0.5 solar mass star, the luminosity is roughly 0.5^3.5, which is approximately 0.09 times the solar luminosity.

What Is the Approximate Luminosity of a 0 ⊙\odot⊙ Main-Sequence Star? A) 0

What Is the Approximate Luminosity of a 0 $\odot$ Main-Sequence Star?
A) 0