Ta yaya taurari ke samuwa

yaya taurari ke samuwa a sararin samaniya

A ko'ina cikin sararin samaniya muna ganin duk taurarin da ke samar da sararin samaniya. Duk da haka, ba mutane da yawa sun sani da kyau Ta yaya taurari ke samuwa. Dole ne ku san cewa waɗannan taurari suna da asali da ƙarshe. Kowane nau'in tauraro yana da siffa daban-daban kuma yana da halaye gwargwadon samuwar.

A cikin wannan labarin, za mu gaya muku yadda taurari suke, menene halayensu da muhimmancinsu ga sararin samaniya.

Menene taurari

Ta yaya taurari ke samuwa

Tauraro wani abu ne na ilmin taurari da aka yi shi da iskar gas (musamman hydrogen da helium) kuma ana samunsa a ciki daidaito saboda nauyin nauyi da ke kula da damtse shi da matsewar iskar gas yana fadada shi. A cikin wannan tsari, tauraro yana samar da makamashi mai yawa daga cikinsa, wanda ke dauke da wani nau'in fusion wanda zai iya hada helium da sauran abubuwa daga hydrogen.

A cikin waɗannan halayen haɗakarwa, taro ba a kiyaye shi gabaɗaya, amma ƙaramin juzu'i yana canzawa zuwa makamashi. Tun da yawan tauraro yana da girma, har ma da ƙarami, haka ma adadin kuzarin da yake fitarwa kowane daƙiƙa.

Babban fasali

samuwar tauraro

Babban halayen taurari sune:

  • Masa: Maɗaukaki mai yawa, daga ɗan juzu'i na yawan Rana zuwa manyan taurari masu yawa tare da yawan adadin Rana.
  • Temperatura: kuma mai canzawa ne. A cikin hotuna, hasken saman tauraro, zafin jiki yana cikin kewayon 50.000-3.000 K. Kuma a tsakiyarsa, zafin jiki ya kai miliyoyin Kelvin.
  • Color: mai dangantaka da yanayin zafi da inganci. Yadda tauraro ya fi zafi, launinsa ya yi shuɗi, kuma akasin haka, sanyaya shi, yana da ja.
  • Haske: ya dogara da ƙarfin tauraron taurari, yawanci ba uniform ba. Mafi zafi da manyan taurari sune mafi haske.
  • Girma: haskensa na fili kamar yadda ake gani daga Duniya.
  • Hanya: taurari suna da motsi na dangi game da filin su, da kuma motsin juyawa.
  • Shekaru: Tauraro na iya zama shekarun sararin samaniya (kimanin shekaru biliyan 13) ko kuma ya kai shekaru biliyan.

Ta yaya taurari ke samuwa

nebulae

Taurari suna samuwa ne ta hanyar rushewar manyan gizagizai na iskar gas da ƙurar sararin samaniya, waɗanda yawancin su ke yin jujjuyawa a koyaushe. Babban kayan da ke cikin wadannan gizagizai su ne hydrogen da helium na kwayoyin halitta, da kuma kadan daga cikin dukkan abubuwan da aka sani a duniya.

Motsin ɓangarorin da ke tattare da yawan ɗimbin yawa da suka tarwatse a sararin samaniya bazuwarsu ne. Amma wani lokacin yawa yana ƙaruwa kaɗan a wani wuri, yana haifar da matsawa.

Matsin iskar gas yana ƙoƙarin kawar da wannan matsawa, amma jan hankali wanda ke haɗa kwayoyin halitta tare ya fi karfi saboda barbashi sun fi kusa da juna, wanda ke magance tasirin. Har ila yau, nauyi zai ƙara ƙara yawan taro. Lokacin da wannan ya faru, zafin jiki yana ƙaruwa a hankali.

Yanzu yi tunanin wannan babban tsari na natsuwa tare da kowane lokaci akwai. Nauyin nauyi radial ne, don haka sakamakon gajimare na kwayoyin halitta zai sami daidaiton yanayi. Ana kiran shi protostar. Hakanan, wannan gajimare na kwayoyin halitta ba a tsaye yake ba, sai dai yana jujjuyawa cikin sauri kamar yadda lamarin ya kulla.

A tsawon lokaci, jijiya za ta yi girma a yanayin zafi mai tsananin gaske da matsananciyar matsa lamba, wanda zai zama injin haɗakar da tauraron. Wannan yana buƙatar taro mai mahimmanci, amma idan ya yi, tauraro ya kai ga daidaito kuma ya fara, don yin magana, rayuwarsa ta girma.

Girman taurari da juyin halitta na gaba

Nau'in halayen da za su iya faruwa a cikin ainihin za su dogara ne akan yawan farkon sa da kuma juyin halittar tauraro na gaba. Don talakawa kasa da sau 0,08 yawan rana (kimanin 2 x 10 30 kg), babu tauraro da zai yi domin jigon ba zai kunna wuta ba. Abun da aka yi haka zai yi sanyi sannu a hankali kuma ya gushe, yana samar da dwarf mai launin ruwan kasa.

A daya bangaren kuma, idan protostar ya yi yawa, shi ma ba zai iya isa ga daidaiton da ake bukata don zama tauraro ba, don haka zai ruguje da karfi.

Ka'idar rushewar girgiza don samar da taurari ana danganta shi ga masanin falaki kuma masanin sararin samaniya na Burtaniya James Jeans (1877-1946), wanda kuma ya haɓaka ka'idar ka'ida ta sararin samaniya. A yau, an yi watsi da wannan ka'idar cewa kwayoyin halitta koyaushe ana yin su don goyon bayan ka'idar Big Bang.

zagayowar rayuwa ta taurari

Taurari suna yin godiya ga tsarin daɗaɗɗen nebulae wanda ya ƙunshi gas da ƙurar sararin samaniya. Wannan tsari yana ɗaukar lokaci. An kiyasta cewa ya faru tsakanin shekaru miliyan 10 zuwa 15 kafin tauraron ya kai ga kwanciyar hankali na ƙarshe. Da zarar matsin iskar gas mai faɗaɗawa da ƙarfin ma'aunin nauyi ya fita, tauraro ya shiga abin da aka sani da babban jeri.

Dangane da girmansa, tauraro yana zaune akan ɗayan layin zane na Hertzplan-Russell, ko zane na HR a takaice. Anan akwai zane mai nuna layuka daban-daban na juyin halittar taurari, duka waɗanda aka ƙaddara su ta hanyar yawan adadin taurari.

Layin juyin halitta na Stellar

Babban silsilar yanki ne mai siffa mai siffar diagonal da ke gudana ta tsakiyar ginshiƙi. A can, a wani lokaci, sababbin taurari suna shiga bisa ga yawansu. Mafi zafi, mafi haske, manyan taurari suna saman hagu, yayin da mafi sanyi da ƙarami suna a ƙasa dama.

Mass shine ma'aunin da ke sarrafa juyin halittar taurari, kamar yadda aka fada sau da yawa. A hakika, manya-manyan taurari suna guduwa da man fetur da sauri, yayin da ƙananan taurari masu sanyi, kamar jajayen dwarfs, kula da shi a hankali.

Ga mutane, jajayen dwarfs sun kusa dawwama, kuma babu jajayen dwarf da suka mutu. Makusanta da manyan taurarin taurari akwai taurarin da suka koma wasu taurari sakamakon juyin halittarsu. Ta wannan hanyar, manyan taurari da manyan taurari suna a sama kuma fararen dodanni a ƙasa.

Ina fatan cewa tare da wannan bayanin za ku iya ƙarin koyo game da yadda taurari ke samuwa, menene halayen su da ƙari mai yawa.


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