B Inflation after Atacama Cosmology Telescope Results

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The latest results from the Atacama Cosmology Telescope reinforce confidence in the standard model of cosmology, suggesting no significant changes regarding inflation theories. Simple models like Staroninsky are not definitively ruled out but are less favored compared to more complex frameworks. The findings indicate a preference for models that align closely with the standard model's predictions. Researchers are encouraged to review the detailed results for a comprehensive understanding. Overall, the Atacama results contribute to ongoing discussions about the nature of inflation in cosmology.
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What do the latest results from the Atacama Cosmology Telescope mean for inflation? Are simple models like Staroninsky ruled out? What is favoured?
 
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windy miller said:
What do the latest results from the Atacama Cosmology Telescope mean for inflation? Are simple models like Staroninsky ruled out? What is favoured?
Can you please cite your reference to the results from the Atacama telescope so we can take a look?
 
I would say no change to the status of any inflation aimed at ‘explaining’ the standard model initial state, since the conclusion is to increase confidence in the standard model of cosmology.
 
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https://en.wikipedia.org/wiki/Recombination_(cosmology) Was a matter density right after the decoupling low enough to consider the vacuum as the actual vacuum, and not the medium through which the light propagates with the speed lower than ##({\epsilon_0\mu_0})^{-1/2}##? I'm asking this in context of the calculation of the observable universe radius, where the time integral of the inverse of the scale factor is multiplied by the constant speed of light ##c##.
The formal paper is here. The Rutgers University news has published a story about an image being closely examined at their New Brunswick campus. Here is an excerpt: Computer modeling of the gravitational lens by Keeton and Eid showed that the four visible foreground galaxies causing the gravitational bending couldn’t explain the details of the five-image pattern. Only with the addition of a large, invisible mass, in this case, a dark matter halo, could the model match the observations...
Hi, I’m pretty new to cosmology and I’m trying to get my head around the Big Bang and the potential infinite extent of the universe as a whole. There’s lots of misleading info out there but this forum and a few others have helped me and I just wanted to check I have the right idea. The Big Bang was the creation of space and time. At this instant t=0 space was infinite in size but the scale factor was zero. I’m picturing it (hopefully correctly) like an excel spreadsheet with infinite...

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