
Concept explainers
(a)
The luminosity at
(a)

Answer to Problem 44QP
The luminosity at
Explanation of Solution
In terms of solar units, the luminosity law is given by,
Here,
Radius in solar units is,
Temperature in solar units is,
Using the expressions for
Conclusion:
Substitute
Therefore, luminosity at
(b)
The luminosity at
(b)

Answer to Problem 44QP
The luminosity at
Explanation of Solution
From (a), the equation for
Conclusion:
Substitute
Therefore, luminosity at
(c)
The luminosity at
(c)

Answer to Problem 44QP
The luminosity at
Explanation of Solution
From (a), the equation for
Conclusion:
Substitute
Therefore, luminosity at
(d)
The luminosity at
(d)

Answer to Problem 44QP
The luminosity at
Explanation of Solution
From (a), the equation for
Conclusion:
Substitute
Therefore, luminosity at
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Chapter 16 Solutions
21st Century Astronomy 6E
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