Nchịkọta kpakpando
![](http://upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Nuclear_energy_generation.svg/220px-Nuclear_energy_generation.svg.png)
Stellar nucleosynthesis bụ ihe okike (nucleosynthesis) nke kemịkalụ site na mmemme mmemme ike n'ime akwụkwọ. Stellar nucleosynthesis emeela e kere hydrogen, helium na lithium n'oge Big Bang . Dị ka mgbaàmà, ọ na- a Wayne ziri ezi nke agwara ihe ndị a mụrụ. Ọ na-amasị ihe mere ọtụtụ ihe ndị a na-anya ji agbanwe ka oge na-aga nakwa ihe mere ihe ụfọdụ na isotopes ha ji ahụ dị ukwuu ndị ọzọ. Fred Hoyle tụpụtara ya na mbu na 1946, [1] onye mechara nụchaa ya na 1954. [2] Emere àmà ndị ọzọ, Pentagon na site na nucleosynthesis site na neutron ejide ihe ndị dị arọ isi, site na Margaret na Geoffrey Burbidge, William Alfred Fowler na Fred Hoyle na akwụkwọ 1957 B 2 FH ha a ma ama, [3] bụ nke ike otu n'ime ihe ndị a kacha akpọtụrụ. akwụkwọ na ihe mere eme astrophysics.
.Kpakpando na-etolite n'ihi nkwụsị n'ime ihe ha m (ọtụtụ ihe ndị ha) n'ogologo ndụ ha, nke mbụ site na ọkụ hydrogen (kpakpando usoro ), mgbe ahụ, helium (kpakpando alaka alaka kwụ ọtọ ), ma jiri ụgbọ na-ere ihe ndị dị elu ọkụ. Otú ọ dị, nke a n'onwe ya agbanwe agbanwe nke ọma n'ụba nke ihe ndị dị na mbara igwe ihe ndị dị n'ime ya dị n'ime mgbalị. Mgbe e ahụ na ndụ ya, ndị dị ala ga-eji ngwa na-ebupụ ikuku ya site na ifufe stellar, na-akpụ nebula mbara ala, ebe mgba dị elu ga-esi n'ụdị ngwaọrụ na ngwaọrụ na-akpọ supernova . A na-eji okwu ahụ bụ supernova nucleosynthesis mmepụta okike nke ihe n'oge mgbawa nke nnukwu ihe ma ọ bụ dwarf ọcha.
Usoro dị elu nke ọkụ na-ebute site na ndakpọ ndò na ikpo ọkụ ọkụ ya, na-ebute ọkụ nke carbon, oxygen na silicon na-esote. ụgbọala, ọtụtụ nucleosynthesis na oke oke A = 28–56 (site na silicon ruo nickel) na-akpata n'ezie site na ɔkwan elu nke mmụta na-adaba na isi, na-eme ka ebili mmiri na-ama jijiji na- egwu azụ. N'ihu ujo na-ebuli Site na 50% obere oge, si otú a na-eme ka ọkụ na-ewe ihe dị ka otu n'ibu. Ọkụ ikpeazụ a na nnukwu ọrụ, nke a na-akpọ nucleosynthesis mgbawa ma ọ bụ supernova nucleosynthesis, bụ oge ikpeazụ nke nucleosynthesis Njikọ.
. [1]Ihe mkpali maka nke tiori nke nucleosynthesis bụ akara nke ịdị na-akpa ihe ndị dị na mbara igwe . Mkpa anụ ahụ́ agbagorịrị saịtị na ọnọdụra kemịkalụ kemịkalụ dị na sistemu ọmụmụ. Ihe Ahara ndị ahụ, mgbe a na-akpa nkata na ihe dị ka ọrụ nke ọnụọgụgụ atọm nke mmewere, nwere sawtooth jagged nke ịdị iche site na ihe dị ka iri nde mmadụ (lee ihe mere eme nke nucleosynthesis theory ). [1] Nke a bụ aro usoro okike na-usoro. Ihe mkpali nke abụọ iji usoro nke nucleosynthesis stellar mere na apụ nke 20, mgbe a tara na ike a napụtara site na mmemme mmemme, mere ka anwụ dị ndụ ogologo dị ka isi iyi ọkụ na ọkụ na ọkụ na ọkụ.
- ↑ Clayton (1968). Principles of Stellar Evolution and Nucleosynthesis. University of Chicago Press.