Question

2. Derive the temperature profile T (R) for a spherical blackbody and a disk blackbody (assuming constant luminosity in both cases). Hint: this is similar to what we saw in class, but solving for T instead of R! Make a plot of T(R) vs. R, and show both profiles on the same plot. (3 pts) 3. Suppose an electron emitted a bremsstrahlung photon around an iron nucleus, instead of a free proton. Would the X-ray energy of the photon be higher or lower in the iron nucleus case, compared to the proton case? Explain why. (3 pts) 4. The mass distribution of high-mass stars (M > 8M.) follows a power law with a slope of -2.35 (extremely massive stars are very rare, lower mass stars are more common). Using this power law, predict how many stars with M = 8M. form for every M = 100M, star. (3 pts)

Answer 1

I am extremely sorry for giving only one answer.It is because according to HOMEWORKLIB RULES I can answer only first one.To get all the answer you must post each question separately.

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