A few other threads on stars got me to wondering how a Neutron Star would glow. My grasp of physics is weak so be nice.
As I understand it light is made by electrons getting excited to higher states and then dropping back down again. When the electron drops into a lower state it emits a photon (light). Now here we have a Neutron Star where all the electrons are crammed into the nucleus of the atom. How is light produced from a soup of neutrons? Do the electrons pop out for a second to make light and then dive back in to the nucleus? I believe I’ve seen pictures of Pulsars (a unique form of Neutron Star) but I don’t know what wavelength the pictures were formed from (visible light, x-rays or whatever). Whatever the wavelength being viewed obviously a Neutron Star can emit energy…I’m just curious how it does it and whether it emits in the visible light spectrum as well.
As long as I’m on about Neutron Stars what is the final end for a Neutron Star? Do they behave like White Dwarfs in that they slowly cool over time till they disappear and all that’s left is a cold hunk of Neutronium (if such a thing as Neutronium even exists)? What else could happen to them? Do they ‘evaporate’ till enough stuff is gone that they explode? Any other ideas?