Isayensi yezinkanyezi kanye nesayensi ehlobene nayo kube yizinsika eziyisisekelo zokuthola izinto ezahlukene. Enye yalezi zinto ezitholakele kube ukuhlonza ngokunembile ukuma kwemithala, ikakhulukazi iMilky Way. Ngaphakathi kwesakhiwo sayo kukhona indawo ebaluleke kakhulu eyaziwa ngokuthi i-Orion Arm. Kodwa siyini ngempela lesi sifunda?
Kancane kancane izimfihlakalo zendawo yonke ziye zadalulwa, ziletha ulwazi olwengeziwe lwesintu. Nakuba lesi sakhiwo singesona esisha uma kuqhathaniswa, siye sasiza ukuqonda, ngokucace kakhulu, ukusebenza komthala. Ngokulandelayo, yindawo ethile lapho iSolar System yenza ukuphila futhi, ngakho-ke, yilapho futhi uMhlaba ulele khona.
Ungase ube nesithakazelo esihlokweni sethu: Ingabe udaka luyinto eningi kakhulu endaweni yonke?
Ukubaluleka kwengalo ye-Orion kuyiqiniso okumele laziwe ngokucaciswa okukhulu
Ukutadisha indawo yonke kanye nazo zonke izimfihlakalo ezihlobene nayo kuye kwathela izithelo kancane kancane. Ngokuhamba kwesikhathi, izambulo ezintsha ziye zaba yinto ebalulekile ekufinyeleleni intuthuko enkulu yobuhlakani.
Isibonelo esicacile salokhu wucwaningo lwemithala nokuhambisana kwayo ngokujwayelekile. Ngokuqondile, i-Milky Way, lapho kuhlala khona i-Solar System, iyona nto eyinhloko yocwaningo kanjalo.
Umthombo: Google
Ngokuhamba kwesikhathi, izifunda ngazinye ezakha umthala ziye zatholakala, ezaziwa ngokuthi izingalo zawo. Esinye salezi yi-Orion Arm ethandwayo, eqanjwe ngokusondela kwayo eduze kweqoqo lezinkanyezi i-Orion.
Ukubaluleka kwayo kulele ekutheni iyindawo noma indawo yeSolar System, ngakho-ke, iplanethi enguMhlaba. Ngokusekelwe kulokhu, ukungena emininingwaneni ecacile mayelana nokubunjwa kwayo, ukunyakaza, phakathi kwabanye, kuzosiza ukudalula okwengeziwe mayelana nesikhala.
Kuze kube manje, ngaphandle kokuba yikhaya leSistimu Yelanga, futhi igcina izinto ezinkulu zasezulwini. I-Orion Arm iyikhaya le-Orion Nebula enkulu, kanye nezinye izidalwa zasezulwini ezivelele. Ukuze ufunde kabanzi ngalesi sihloko, ungabheka izihloko ezikhuluma ngama -nebulae ahlukene , njengalena okukhulunywe ngayo.
Phakathi kwabaningi, kukhona iqoqo leCygnus X, Polaris nokunye. Njengokungathi lokho akwanele, le ndawo ye-Milky Way iyaqhubeka ikhula, yingakho isafihla ezinye izimfihlakalo. Akungabazeki ukuthi ingenye yezindawo ezicebisa kakhulu ezakha umthala lapho ukuphila kulele khona.
I-Milky Way kanye nengalo ye-Orion. Sinjani isimo samanje sakho kokubili?
Ucwaningo lwezinkanyezi luqinisekisile ukuthi zinezimo ezahlukene kuye ngokuthi zakhiwe kanjani. Phakathi kwalezi kukhona lezo ezinesimo esijikelezayo, njengeMilky Way.
Ngaphezu kwalokhu kutholakala, ingxenye ngayinye ye-Milky Way noma i-spiral esebenzayo, yaziwa ngokuthi ingalo. Ngakho-ke, iMilky Way kanye nengalo ye-Orion ziyingxenye yesimiso esifanayo, enye iyingxenye yolunye.
I-Orion Arm ingenye nje yezingalo eziyisishiyagalolunye ezijikelezayo ezinikeza i-Milky Way ukuma kwayo. Izingalo ngazinye, noma izandiso ezijikelezayo, zinezici zazo, igama, kanye nezinto eziqukethwe yizo. Uma ungathanda ukufunda kabanzi ngalesi sihloko, sincoma ukufunda ngezinhlobo zezinkanyezi kanye nezici zazo.
Kokubili i-Milky Way kanye nengalo ye-Orion ziyizinto ezimbili ze-cosmic ezinokubaluleka okungaphezu kokubaluleka kwendawo yonke. I-Milky Way ibhekele ukwakhiwa kweSolar System, kuyilapho ingalo ye-Orion kuyindawo yayo ngqo.
Njengamanje, kunemibono ehlukene mayelana ne-Orion Arm. Abanye ososayensi bathi iyigatsha lenye yezingalo ezinkulu, i-Perseus Arm eyaziwayo.
Ngakolunye uhlangothi, enye ingxenye yomphakathi wesayensi ithola ukuthi ingalo enesandiso esanele sokuzimela. Iqiniso lendaba ukuthi, ku-Milky Way, ingenye yezingxenye ezibaluleke kakhulu enazo kuqoqo lwayo.
Eqinisweni, ngaphambili kwakucatshangwa ukuthi iyisixhumanisi kwezinye izindawo zendawo yonke. Ngenxa yalokho, ngaleso sikhathi yayibizwa ngokuthi i-Orion Spur ngaleyo njongo evamile.
I-Orion Arm ye-Milky Way nakho konke okwaziwayo ngayo. Ithini yonke imininingwane?
Ngaphambili, inkolelo-mbono yayiwukuthi uMhlaba wawuyinkaba yendawo yonke, i-Solar System, konke okwaziwayo. Nokho, ngenxa yesayensi yezinkanyezi yesimanje, kuyaziwa ukuthi kunendawo yonke engenakuqondwa.
Ngokusekelwe kulolu cwaningo, kwakwaziwa ukuhlonza i-Orion Arm ye-Milky Way. Ngenxa yokubuka okuqhubekayo komthala, zonke izingxenye zawo zakwazi ukuhlonza.
Njengoba ingumthala ovunguzayo, ngamunye wabo umele insika noma ingalo enomumo ofanayo. Sekukonke, eziyisi-9 zazo zinikeza ukuphila esimweni esithile se-Milky Way nakho konke okushiwo ukuhambisana kwayo.
Umthombo: Google
Ingalo ye-Orion ye-Milky Way iphakathi kwezingalo ze-Sagittarius ne-Perseus. Selokhu yatholakala, lesi sifunda somthala siye sabhekwa njengengxenye yengalo ye-Perseus. Kodwa-ke, ngokuhamba kwesikhathi, siye saqashelwa njengento ezimele.
Noma kunjalo, ingalo ye-Orion ayinawo amaphiko afanayo nalawo ayeqanjwe ngaphambili. Ngempela, ingenye yezingalo ezithandelayo ezincane kunazo zonke, kodwa ifanelekile ngokuba indawo eqondile yeSolar System.
Lena yindlela eyaziwa ngayo indawo yeSolar System
Ngokusebenzisa amateleskopu ayinkimbinkimbi kakhulu azo zonke izinhlobo, kuye kwenzeka ukuthola iSistimu Yelanga ngempumelelo. Ngaphezu kwalokho, ukusebenzisa ama-interferometer, ukudala imephu noma umdwebo weMilky Way kuye kwaba lula.
Ngenxa yalokhu, isifunda esiphakathi kwezinkanyezi engalweni ye-Orion eyaziwa ngokuthi i-Bubble yasendaweni isihlonziwe. Lokhu kwakheka okuminyene kwe-hydrogen nezinye izinto kube yikhaya le-Solar System. Okwamanje, i-Solar System ihambe ngokwanele ukuthi ingabonwa emaphethelweni angaphakathi ebhamuza lendawo.
