An Introduction to Modern Astrophysics · Problem 5.6
Telescopes — Carroll & Ostlie
Physics — Astrophysics · compton-effect
Problem
Consider the case of a ``collision'' between a photon and a free proton, initially at rest. What is the characteristic change in the wavelength of the scattered photon in units of nanometers? How does this compare with the Compton wavelength, λC?