B Images with CMB used to Illuminate Dark Matter

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A collaborative effort utilizing microwave data from the Atacama Cosmology Telescope has produced a new image of dark matter in the universe, highlighting significant sections of the sky. This groundbreaking development is detailed in three papers set to be published in the Astrophysical Journal, emphasizing the rigorous scientific methods employed. The research enhances our understanding of dark matter's role in the universe's structure and composition. The project showcases the effectiveness of teamwork and advanced technology in cosmological studies. This achievement marks a significant advancement in unraveling the mysteries of dark matter and the universe.
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A collaborative effort is yielding a Dark Matter picture of the universe from microwave (CMB) data collected by the Atacama Cosmology Telescope
A collaborative effort is yielding a Dark Matter picture of the universe from microwave (CMB) data collected by the Atacama Cosmology Telescope.
Major sections of the sky have already been imaged. Those are shown in the image below as the red/blue speckled regions (from a University of Toronto article).
Low-Res_ACTLensingMap-crop[1].jpg
According to newswise:
Details explaining the scientific method behind the new image are articulated in a set of three papers that are posted to the ACT website (https://act.princeton.edu/publications), and will be published in the Astrophysical Journal.
 
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The collaboration between scientists and the use of advanced technology, specifically the Atacama Cosmology Telescope, is shedding light on the mysterious concept of dark matter. The use of microwave data collected by the telescope has allowed for the creation of a dark matter picture of the universe. This is a significant achievement, as major sections of the sky have already been imaged, as shown in the red/blue speckled regions in the accompanying image.

The three papers posted on the ACT website and soon to be published in the Astrophysical Journal provide details on the scientific method used to create this new image. This demonstrates the rigorous approach taken by the scientists involved in this collaboration and showcases the importance of peer-reviewed research in advancing our understanding of the universe.

The use of CMB data to illuminate dark matter is a groundbreaking development in the field of cosmology. It allows us to see beyond what was previously thought possible and provides a deeper understanding of the structure and composition of the universe. This collaborative effort highlights the power of teamwork and the potential of advanced technology in pushing the boundaries of scientific discovery.

Overall, this new image and the accompanying papers are a testament to the dedication and hard work of the scientists involved in this project. It is an exciting time in the study of dark matter, and this achievement brings us one step closer to unraveling the mysteries of the universe.
 
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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