Dark Ages ( Eng. Cosmic Dark Ages ) in the cosmological history of the Universe - the period of the development of the universe; the time interval between the occurrence of relict radiation and the formation of the first stars [1] .
It follows after the era of the formation of a relict background and the end of recombination, which lasted about 300 Ma [2] .
Dark ages end when the radiation of the first stars re-ionizes the substance, and passes into the current era: Λ-dominance .
Between 380,000 years and 550 million years [3] after the Big Bang . The Universe is filled with hydrogen and helium, relict radiation, atomic hydrogen radiation at a wavelength of 21 cm . There are no stars , quasars, or other bright sources.
See also
- Origin of the universe
- History of the universe
- The history of the development of ideas about the universe
- Reionization
Links
- earthsky.org Peering toward the Cosmic Dark Ages
- space.com The Universe's Dark Ages: How Our Cosmos Survived
Notes
- ↑ Dark Ages of the Universe . modcos .
- ↑ S. Parnovsky. How the universe works. Introduction to modern cosmology . - Alpina Publisher, 2017 .-- P. 277. - ISBN 5961450600 .
- ↑ Stars are younger: 'Reionization' is more recent than predicted . phys.org . Date of treatment December 29, 2017. Archived on February 6, 2015.