Using the Mass-Luminosity relationship, estimate the luminosities for each of the following stars: 25 MSun star...
Using the Mass-Luminosity relationship, estimate the luminosities for each of the following stars:
- 25 MSun star
- 2.5 MSun star
- 0.25 MSun star
Homework Answers
luminosity is proportional to 3.5 times of mass so if mass of
main sequence star is 2 times the mass of sun then luminosity will
be 11.31 of sun.luminosity of sun is 3.83*10^26.
(a)if mass is 25 M sun then luminosity is 78125*luminosity of sun,
78125*3.846*10^26 = 3.0047e31
(b)if mass is 2.5 M sun then luminosity is 24.70*luminosity of sun,
24.7*3.846*10^26 = 9.5*e27
(c)if mass is 0.25 M sun then luminosity is 0.0078125*luminosity of
sun, 0.0078125*3.846*10^26 = 3e24
Add Answer to:
Using the Mass-Luminosity relationship, estimate the
luminosities for each of the following stars:
25 MSun star...
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ity of the 20 Mo star Sirius predicted by the mass-luminosity equation (Unit 58). Its observed...
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Estimate the luminosity and temperature of the star Vega by examining its vertical and horizontal position...
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temperature of the star Vega by examining its vertical and
horizontal position in the H-R diagram . (Hint: You should make an
estimate of these values by interpolating between the values marked
on each axis). Using the values you estimated, determine the size
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ity of the 20 Mo star Sirius predicted by the mass-luminosity equation (Unit 58). Its observed luminosity is about 20 LO How can you explain the difference? The mass-luminosity relationship predicts that Sirius is about Sirius's higher luminosity is a result of its higher Sun's. Themassluninosit reSisis a times more luminous than the Sun. surface temperature and lrger surface area compared to the
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temperature of the star Vega by examining its vertical and
horizontal position in the H-R diagram . (Hint: You should make an
estimate of these values by interpolating between the values marked
on each axis). Using the values you estimated, determine the size
of Vega as compared to the Sun using the Stefan-Boltzmann law.
Spectral type 106 Alnilam 、、\Rigel A 、、\ Betelgeuse Adhara Deneb Antares 、 104 Spica A Polaris Spica B 、\-pergian Canopus Arcturus Rigel...
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