Good Introductory Book/Article to Dark Energy?

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For those seeking to deepen their understanding of dark energy, several recommended resources are available. A notable introductory paper is "Why all these prejudices against a constant?" which is designed to be accessible for undergraduates. Additionally, "Dark Energy: Mystery of the Millennium" by Padmanabhan is highlighted as an excellent resource authored by a leading expert in the field. These materials provide a balanced perspective and are suitable for those with a foundational knowledge in physics and math. Engaging with these texts can significantly enhance comprehension of dark energy concepts.
charmander
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I have read a lot about Dark Energy in books meant for the general public and I would really like to learn more. I am a junior undergrad physics and math major. Can anyone recommend a good introductory book/article that is appropriate for an undergraduate? Thanks!
 
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Wakabaloola,
Thanks a lot! That definitely looks a lot easier to understand than some of the articles I've tried to read.
 
Just to get a balanced perspective you might also have a look at
http://arxiv.org/abs/1002.3966/
"Why all these prejudices against a constant?" :biggrin:

It's also written to be fairly widely accessible.
 
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...
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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