Homework 3
Due: 2017/10/30
12. Estimate the ratio of
radiation pressure to gas pressure in the core of the
Sun. Assume that the Sun has central temperature T = 15.5 million K,
central density ρ = 150 g cm-3, and composition 90 % hydrogen
and 10 % helium by number.
13. Using dimensional arguments, estimate the mass, M*, of the
Main Sequence star for which gas pressure and
radiation pressure are equal in the star's core.
14. 10.10
15. 10.13
16. 10.14
17. 10.16
18. 10.17
19. 10.21