radiation era

A Dictionary of Astronomy | 1997 | 486 words | Copyright

radiation era The period from about 10⁻⁴³, s (the Planck era) to 30 000 years after the Big Bang. During this time, the expansion of the Universe was dominated by the effects of radiation or high-speed particles (at high energies, all particles behave like radiation). The lepton era and the hadron era are both subdivisions of the radiation era. The radiation era was followed by the matter era, during which slow-moving particles dominated the expansion of the Universe.

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"radiation era." A Dictionary of Astronomy. 1997. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>.

"radiation era." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O80-radiationera.html

"radiation era." A Dictionary of Astronomy. 1997. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-radiationera.html

Learn more about citation styles