Dark Matter Primer: Overview and Updates

AI Thread Summary
The discussion highlights a paper that provides a comprehensive overview of dark matter, despite being somewhat outdated. Participants express appreciation for the resource, indicating its value for those new to the topic. The paper is noted for its clarity and accessibility, making it suitable for readers seeking foundational knowledge. There is a personal mention of the author's ongoing PhD work, which adds context to their interest in the subject. Overall, the paper is recommended as a solid introduction to dark matter.
wolram
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I thought this paper is worth citing it gives a good overview of Dark matter, it maybe a little out of date but it is still a good readhttp://arxiv.org/abs/1006.2483
 
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Been looking for a nice introduction to this topic once I get my damn PhD corrections out of the way- thanks for sharing :)
 
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##.
Why was the Hubble constant assumed to be decreasing and slowing down (decelerating) the expansion rate of the Universe, while at the same time Dark Energy is presumably accelerating the expansion? And to thicken the plot. recent news from NASA indicates that the Hubble constant is now increasing. Can you clarify this enigma? Also., if the Hubble constant eventually decreases, why is there a lower limit to its value?

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