Where Can I Find a Paper on Dark Matter Density Percentages in the Universe?

AI Thread Summary
The discussion centers on finding academic papers that detail the percentages of visible matter, dark matter, and dark energy in the universe. Participants recommend consulting papers from the WMAP science team for accurate data. They also suggest that introductory cosmology textbooks may provide clearer explanations. Additional resources, including Wikipedia pages on dark matter and the Lambda-CDM model, are mentioned for further information. Overall, these sources can help clarify the composition of the universe.
krishna mohan
Messages
114
Reaction score
0
Hi...

Wikipedia says that only five percent of the universe is matter that we know... Can anyone tell me a paper where the percentages of visible matter, dark matter and dark energy in the universe are given?
 
Space news on Phys.org
krishna mohan said:
Hi...

Wikipedia says that only five percent of the universe is matter that we know... Can anyone tell me a paper where the percentages of visible matter, dark matter and dark energy in the universe are given?
Any of the papers from the WMAP science team will discuss this. However, an introductory cosmology textbook is probably a better place to go.
 
Thanks...got it! :smile:
 
Abstract The Event Horizon Telescope (EHT) has significantly advanced our ability to study black holes, achieving unprecedented spatial resolution and revealing horizon-scale structures. Notably, these observations feature a distinctive dark shadow—primarily arising from faint jet emissions—surrounded by a bright photon ring. Anticipated upgrades of the EHT promise substantial improvements in dynamic range, enabling deeper exploration of low-background regions, particularly the inner shadow...
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##.
Back
Top