Cosmological lithium problem: Difference between revisions

Revision as of 11:12, 15 May 2019

Revision as of 22:26, 11 June 2019

Line 35:

==Observed abundance of lithium==

Despite the low theoretical abundance of lithium, the actual observable amount is oneless thirdthan the calculated amount by a factor of this3-4.<ref theoreticalname=fields11>{{cite calculationjournal |last=Fields |first=B.D. |date=2011 |title=The primordial lithium problem |journal=Annual Review of Nuclear and Particle Science |volume=61 |pages=47–68 |doi=10.1146/annurev-nucl-102010-130445 |arxiv=1203.3551}}</ref> This contrasts with the observed abundance of isotopes of [[hydrogen]] (¹H and [[deuterium|²H]]) and [[helium]] ([[helium-3|³He]] and [[helium-4|⁴He]]) that are consistent with predictions.<ref name=HouStats/>

[[Image:SolarSystemAbundances.svg|thumb|center|800px|Abundances of the chemical elements in the Solar System. Hydrogen and helium are most common, residuals within the paradigm of the Big Bang.<ref>{{cite book |last1=Stiavelli |first1=Massimo |year=2009 |title=From First Light to Reionization the End of the Dark Ages |url=https://books.google.com/books?id=iCLNBElRTS4C&pg=PA8 |page=8 |publisher=[[Wiley-VCH]] |___location=Weinheim, Germany |isbn=9783527627370|bibcode=2009fflr.book.....S }}</ref> Li, Be and B are rare because they are poorly synthesized in the Big Bang and also in stars.]]