3 ms·
The MOND guys are aware: https://tritonstation.com/2022/07/21/jwst-twitter-bender/ https://tritonstation.com/2022/07/21/jwst-twitter-bender/ Specifically this
by aeneasmackenzie 4y ago
The MOND guys are aware: https://tritonstation.com/2022/07/21/jwst-twitter-bender/ https://tritonstation.com/2022/07/21/jwst-twitter-bender/
Specifically this paper[0] is mentioned as predicting it
> Remarkably, the data roughly follow the green line, which is an L* galaxy magically put in place at the inconceivably high redshift of z=10. Galaxies seem to have gotten big impossibly early. This is why you see us astronomers flipping our lids at the JWST results. Can’t happen.
> Except that it can, and was predicted[0] to do so by Bob Sanders a quarter century ago: “Objects of galaxy mass are the first virialized objects to form (by z=10) and larger structure develops rapidly.”
0: https://arxiv.org/abs/astro-ph/9710335 https://arxiv.org/abs/astro-ph/9710335
- cryptonector 4y ago> Galaxies seem to have gotten big impossibly early. A MoND-like theory that allows the strength of gravity / inertia to vary over time can explain that. Granted, that sounds farfetched, but then, so does DM. Of course, it's easy to spend money looking for DM, and hard to spend money looking for a better theory of gravity.
- throwawaymaths 4y agoMond doesn't need that to explain early galaxies. When the matter is sparse gravitational contributions are weak and thus overwhelmingly in the O(1/r) regime and not the O(1/r^2) -- this makes gravity "seem stronger", and so stuff clumps together faster.