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Ignition
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I' ve read that the CMB could be emitted by intergalactic medium. What about it?
CaptainQuasar said:I think he might be asking whether anyone else has encountered this idea...
marcus said:Maybe the problem was that you can tell something about the stuff in intergalactic space by how light from distant galaxies is absorbed, and I think basically there just isn't enough stuff to have an effective temperature and radiate all that microwave power. I'm just an interested person though, not a cosmologist, so I'd have to defer to anybody who can give a more coherent explanation.
Ignition said:But the intergalactic medium is isotropic on large scale, like the distribution of galaxies. And there are anyway anisotropies in the CMB, isn' t it?
The Intergalactic Medium, also known as the IGM, is the vast space between galaxies that contains gas, dust, and other matter. It is considered the "empty" space in the universe, but it actually contains a very low density of particles.
The IGM is primarily studied through the use of telescopes that can detect different forms of light, such as X-rays, ultraviolet, and radio waves. Scientists also use computer simulations and mathematical models to understand the properties and behavior of the IGM.
The IGM is crucial for the formation of galaxies as it provides the raw materials for stars and galaxies to form. As matter is pulled together by gravity, it can form into stars and eventually galaxies. The IGM also plays a role in the evolution of galaxies as it can influence their growth and shape.
Studying the composition of the IGM can provide insights into the early universe and its evolution. The presence of certain elements, such as hydrogen and helium, can indicate the age of the universe and the processes that have occurred since its formation.
The IGM can cause absorption of light from distant galaxies, which can provide clues about the conditions and composition of the IGM. This can also help scientists understand the distribution of matter in the universe and the effects of gravity on light as it travels through space.