Wenza njani ngendaleko kweenkwenkwezi

Njengoko nawuphi na umzimba kwindalo, neenkwenkwezi akakwazi kuhlala injalo. Bona azalwe, ukuphuhlisa, yaye ekugqibeleni "kufa". iinkwenkwezi, yokuzivelela ithatha ezigidi zeminyaka, kodwa iingxoxo zimalunga ngexesha nokudaleka. Ngaphambili, izazi babecinga ukuba inkqubo 'ukuzalwa' zabo stardust kufuna izigidi zeminyaka, kodwa akunjalo kwakudala, intsimi ukufota isibhakabhaka evela Great Orion Nebula zifunyenwe. Kwiminyaka nje embalwa, kuye kwavela a encinane cluster inkwenkwezi.

Le mifanekiso ka 1947 kule ndawo iqela elincinane lezinto star-like sele ezisisigxina. Ngo-1954, abanye babo sele baba evuthelweyo, yaye emva kweminyaka emihlanu, ezi zinto wawa zibe eyahlukileyo. Ngoko ke, ngaxashanye kuqala inkqubo yinkwenkwezi wokuzalwa senzeka nje phambi ngeenkwenkwezi.

Makhe sihlolisise ngokweenkcukacha isakhiwo ngendaleko beenkwenkwezi, ukuze uqalise njani kunye nesiphelo ongapheliyo, ngokomgangatho wabantu, ubomi.

Ngokwemveli, izazinzulu ziye zacebisa ukuba iinkwenkwezi akhiwa amafu amafu igesi kunye nothuli bume. Phantsi yempembelelo imikhosi omxhuzulane olusuka kwisiphumo ilifu gas akha ibhola ngaphaya kwawo, ashinyeneyo kubume. zaphembelela yangaphakathi akakwazi ukulinganisa imikhosi yayo compressive omxhuzulane. Ngokuthe ngcembe ibhola zixinaniswe ukuze inkwenkwezi ehamba kuphuma ubushushu kunye noxinzelelo negesi shushu ngaphakathi ibhaluni lizinzise amandla lwangaphandle. Emva koko, lo ucinezelo oyekayo. Ngethuba lokuqhuba kwale nkqubo kuxhomekeke ubunzima inkwenkwezi kwaye ngokubanzi ukususela amabini ukuya amakhulu ezigidi zeminyaka.

isakhiwo Star ibandakanya amaqondo obushushu aphezulu kakhulu ngaphakathi kwabo, nto leyo inegalelo iinkqubo mbawula liqhawuke (yehayidrojini yakha kubo, iba helium). Ezi nkqubo banoxanduva radiation kakhulu iinkwenkwezi. Le ixesha achitha ubonelelo ekhoyo hydrogen kuxhomekeke ubunzima. Ukusuka efanayo kuxhomekeke ngexesha kwimitha.

Xa osemanzini koovimba hydrogen, nasekusungulweni leenkwenkwezi ukuza nenqanaba lokusekwa bakaRafa ebomvu. Oku kwenzeka ngolu hlobo lulandelayo. Emva ukupheliswa-eneji amandla omxhuzulane baqale compress i core. Kulo mzekelo, inkwenkwezi kwandisa ubukhulu kakhulu. Luminance kwandisa ngenxa yokuba inkqubo ye reactions fusion kuyaqhutywa, kodwa kuphela umaleko obhityileyo kwi kumda ngumongo.

Le nkqubo kunye ukunyuka kwamaqondo obushushu ongundoqo helium-zixinaniswe nokuguqula nuclei helium ukuya nuclei carbon.

Ngokutsho uqikelelo, ilanga lethu ezingenza abe ingxilimbela iminyaka billion isibhozo ezibomvu. radius Its kuthi ke ngoko lwande amaninzi amaxesha, kwaye iqaqambile uya kunyuka amakhulu amaxesha xa kuthelekiswa namanqanaba yangoku.

Ubude bobomi inkwenkwezi, njengokuba sele kukhankanyiwe, kuxhomekeke ubunzima bayo. Izinto esinobunzima leyo ngaphantsi kwe ilanga, ngokonga kakhulu "bachithe 'kumthi wabo ngayo amafutha enyukliya, ukuze kukhanye amashumi ezigidi zeminyaka.

Le Ukudaleka iinkwenkwezi iphela kunye nokusekwa kwe UDema ezimhlophe. Oku kwenzeka kwabo kubo, ogama ubunzima seliza ubunzima welanga, ngamanye ayidluli 1.2 kuyo.

iinkwenkwezi Giant bakholisa ngokukhawuleza deplete unikezelo kwabo amafutha yenyukliya. Oku sikhatshwa ilahleko ubunzima ebalulekileyo, ingakumbi ngenxa ukufakelwa kwe kweqokobhe engaphandle. Ngenxa yoko, kukho kuphela ngcembe lwentaba- kwisabelo esisezantsi, apho ngeeatom kulelwe. Ekuhambeni kwexesha, ezi nkwenkwezi uzungayeki ukukhanya babe ezingabonakaliyo.

Kodwa ngamanye amaxesha zazivelela eqhelekileyo kunye nolwakhiwo neenkwenkwezi baphazamise. Ngokufuthi kumayelana izinto ezinkulu eziye zazama zonke iintlobo amafutha yenyukliya. Emva koko baya kuguqulwa neutron, supernovae kunye nemingxuma emnyama. Oosonzululwazi abaninzi bafunda ngezi zinto, kuphakama imibuzo emitsha ngakumbi.