cross-posted from: https://lemmy.ca/post/1721793
The article introduces a dynamic cosmological constant in the current ΛCDM cosmological model to account for some data from the James Webb telescope. The new model would have the age of the universe at ~27 billion years.
This is interesting. Unfortunately some popular science magazines are already presenting it as a fact…
What I don’t understand is where you found the magnitude of 0.1 Gyr. According to Weinberg (§1.8), for instance, our galaxy only is around 13 Gyr. As Harrison reports (Table 5.3), the Earth alone is around 5 Gyr, and the universe from 10 to 20 Gyr. Maybe it was a typo in your comment?
Great recommendations about books, thank you. As a physicist I take Wikipedia with more than a pinch – say several kg – of salt, because it frequently contains incorrect or outdated things, anyone can write whatever they please there, and there’s nobody behind it that you can write to asking for clarification or where they got their statements from…