Hi,
I would appreciate answering the following questions:
1) Why are we able to detect the signature of the 13.5 by BB but not that of the 4.5 by SN?
2) If the BB is expanding the universe then all galaxies must be red shifted. Why then is Andromeda blue shifted?
3) If an observer is contracting at an accelerating rate, wouldn't he see the universe expanding at such rate (dark energy) and that the universe is receding from him (redshift)?
4) Could the velocity of rotation versus distance from the galactic center be explained by hypothetic accelerating contraction of galaxies?
Ni Ha, it's a bit out of topic here. Please refer to the other astronomical groups for this question.
Thanks for your understanding.
No need to remove it, Ni Ha. Thanks ;)
After all, I'm not aware of an astroinformatic approach to this questions, but it may came out eventually. It was just to specify which is the main focus of this group.
I'd say those questions are off-topic here. While astroinformatics provides tools to approach lots of problems, Ni Ha's questions belong to a general cosmology/astrophysics group (they involve observational and theoretical astrophysics); astroinformatics could be still be integrated in the answers there, if needed, but in my view that would be way overkill.
The issue is that the main points of the questions belong elsewhere.
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