A. Explain how the temperature of each source on the Bremsstrahlung graph can be "read" just by looking at the curves

B. Assuming that sources are spatially resolved (with angular extension ) and at known distance D, explain how you can infer the number density n under the assumption that they are made of ionized hydrogen

-5.5 6 T-105 K -6.5 T=10 K Log I - 7 T-10' K -7.5 1. 12 16 18 14 Log v -5.5 6 T-105 K -6.5 T=10 K Log I - 7 T-10' K -7.5 1. 12 16 18 14 Log v