Which of the following best obey the mass-luminosity relation?

Which of the following kinds of stars best obey the mass-luminosity relation? If you compare two stars, The one with the smaller absolute magnitude will always have the greater luminosity.

Is luminosity dependent on mass?

When the luminosity of main sequence stars is plotted against their masses, we observe a mass‐luminosity relationship, approximately of the form L ∝ M 3.5 (see Figure ). In other words, doubling the mass of a main sequence star produces an increase in luminosity by a factor 2 3.5 = 11 times.

Why is the mass of a main sequence star related to its luminosity?

The luminosity and temperature of a main-sequence star are set by its mass. More massive means brighter and hotter. A ten solar mass star has about ten times the sun’s supply of nuclear energy.

Which stars best obey the mass-luminosity relation?

Why is there a main sequence mass-luminosity relation quizlet?

Why is there a mass-luminosity relation for main sequence stars? The more massive a star is, the higher the rate of fusion in the core is due to the larger weight pressing down on the inner layers. When the energy from the fusion reaction reaches the surface it radiates into space with a characteristic luminosity.

Where are stars born?

Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction.

What is the mass-luminosity relation?

From Wikipedia, the free encyclopedia In astrophysics, the mass–luminosity relation is an equation giving the relationship between a star’s mass and its luminosity, first noted by Jakob Karl Ernst Halm. The relationship is represented by the equation: where L⊙ and M⊙ are the luminosity and mass of the Sun and 1 < a < 6.

How do you derive the mass/luminosity relation?

Deriving a theoretically exact mass/luminosity relation requires finding the energy generation equation and building a thermodynamic model of the inside of a star. However, the basic relation L ∝ M 3 can be derived using some basic physics and simplifying assumptions.

Why is the luminosity of a radio source measured in Jansky?

The luminosity of a radio source is measured in W Hz −1, to avoid having to specify a bandwidth over which it is measured. The observed strength, or flux density, of a radio source is measured in Jansky where 1 Jy = 10 −26 W m −2 Hz −1.

How is the luminosity of a StAR related to its mass?

The luminosity ( L) of the star is roughly proportional to the total mass ( M) as the following power law : This relationship applies to main-sequence stars in the range 0.1–50 M☉.