i got a bit lost in the responses to my last question so I am guessing this one is really going to be beyond me.
Assumptions I have used for my questions are:
· Speed of light = 299792.458 km/s
· Hubble constant = 71 km/s/Mpc (I know about the tension of H0 being 68 and 73 but...
Clearly I have a lot to learn. Starting with Math, and maybe, you know actual physics, and then maybe some Astrophysics.
Not being flippant, I have a genuine interest but sadly not the education. I do appreciate you taking the time to try to explain it to me.
You guys are really helpful, thank you.
One last clarifying question and I'll move on to another topic in a new thread.
So, we don't directly observe redshift, due to the different emission spectrum of atoms (I think). It is calculated through a process I don't really understand, but the...
So now I am confused again. We use cosmological models like Planck and the CMB or standard candles to model H0, but does that mean we infer >c redshifts, or do we observe them? As you can tell I am having trouble understanding how we can directly observe light that is being carried away by space...
Wow, that blows my mind. So had we been able to observe at the time of recombination, photons emitted next to us would have receded at 60c, but due to the fall off in H0, the Hubble horizon eventually caught up to them? And those first photons made their way to us sometime in our history? (also...
Sorry for a basic question but I keep reading conflicting information on this.
So, I know that there are distant galaxies that are being carried by the expansion of space faster than the speed of light relative to us. But were these objects actually receding >c when the light we are seeing was...