Solutions02 - HOMEWORK 2 Astronomy & Astrophysics...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
HOMEWORK 2 Astronomy & Astrophysics – Chapter 8 7. By applying the Boltzmann equation to the neutral hydrogen atom (neglect ionization), write the equation for the population of the n th energy level relative to that of the ground state at temperature T. Now, assuming that the multiplicity of each level is unity (g n = 1), construct an appropriate table of 5 values showing your results for T = 6000 K. Do the same for T = 15,000 K. What are the major differences between them? N n / N 1 = g n / g 1 exp{ - Δ E / kT } N n = N 1 exp{- Δ E / kT} N Δ E N n (6000 K) N n (15,000 K) 1 0.00 1.000 1.000 2 10.20 2.69 x 10 -9 3.73 x 10 -4 3 12.09 6.94 x 10 -11 8.64 x 10 -5 4 12.75 1.94 x 10 -11 5.18 x 10 -5 5 13.06 1.06 x 10 -11 4.08 x 10 -5
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
8. To understand the relative importance of the different parameters in the Saha equation, perform the following experiment. Assume that T = 5000 K, N e = 10 15 /cm 3 , and χ = 12 eV. By what factor does the ionization ratio (N + /N o ) change when we separately a)
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/09/2009 for the course PHYSICS 3021 taught by Professor Staff during the Spring '08 term at Georgia Institute of Technology.

Page1 / 4

Solutions02 - HOMEWORK 2 Astronomy & Astrophysics...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online