nucleosynthesis

Noun

Meaning

(astronomy) the cosmic synthesis of atoms more complex than the hydrogen atom

Synonyms

Hypernyms

Examples

Almost all naturally occurring elements heavier than helium are created by stellar nucleosynthesis during the star's lifetime, and for some stars by supernova nucleosynthesis when it explodes. Source: Internet

Before nucleosynthesis began, the temperature was high enough for many photons to have energy greater than the binding energy of deuterium; therefore any deuterium that was formed was immediately destroyed (a situation known as the deuterium bottleneck). Source: Internet

As it happened, both Lemaître and Hoyle's models of nucleosynthesis would be needed to explain the elemental abundances in the universe. Source: Internet

A very influential stimulus to nucleosynthesis research was an abundance table created by Hans Suess and Harold Urey that was based on the unfractionated abundances of the non-volatile elements found within unevolved meteorites. Source: Internet

Characteristics There are two important characteristics of Big Bang nucleosynthesis (BBN): * The era began at temperatures of around 10 MeV (116 gigakelvin ) and ended at temperatures below 100 keV (1.16 gigakelvin). Source: Internet

Because of the very short period in which nucleosynthesis occurred before it was stopped by expansion and cooling (about 20 minutes), no elements heavier than beryllium (or possibly boron ) could be formed. Source: Internet

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