Ama-Brown Dwarfs ahlala esikhundleni esiphakathi phakathi kwamaplanethi nezinkanyezi. Njengenqwaba yezinqwaba eziyishumi nambili zeJupiter, azikwazi ukugijima ekujuleni kwazo kwe-thermonuclear fusion amaphrojekthi. Bakhanyisa ngokubuthaka futhi basheshe baphole kakhulu (yize kukhona okuhlukile), ngakho-ke ukubona okwenzekayo kuma-brown mfushane angakakwazi ukubona.
UDaniel Apai kanye nozakwabo abavela e-Arizona University babuyekeze kuqala umkhathi wento esetshenziswayo esebenzisa idatha ye-Tess Space Telescope. Bakhuluma ngomsebenzi wabo esihlokweni esishicilelwe kwi-Astrophysical Journal. Azikho izibonakude ze-telescope ezikhona ezingabona umgomo onjalo ngqo, ngakho-ke ososayensi bathuthukise i-algorithm entsha yokucubungula idatha, evumela ukuthi bakhiphe kabusha uhlobo lomoya ekuthambekeni kwe-fwarf emnyama.
Into yocwaningo kwakuwumbhangqwana osondele kakhulu we-brown mncane uLuhman 16 AB, etholakala iminyaka engu-6.5 elula. Ubukhulu babo bobabili bulingana nejupiter, kepha munye (16 a) unezikhathi ezingama-34 ezine-makhulu, kanti owesibili (16 v, owayebheka ososayensi) - amahlandla angama-25. Ososayensi bahlaziya idatha ye-test-eqondile ngoshintsho eLuhman 16 B Lumilati, eyenzeka njengoba uhlelo oluphindwe kabili lujikeleza, ukumboza ngamakhulu okuvukelwa.
Lokhu kuvunyelwe ukuthola izikhathi ezimbalwa zesikhathi, lapho ukukhanya kombala olunsundu olushintshayo, kusifaka kulezi zindawo ezimnyama zangaphezulu - amafu amnyama, khona-ke imivimbo ekhanyayo yimafu abuthakathaka, lapho imisebe ebuthakathaka yamathumbu yenza khona ngokwayo. Imivimbo emnyama emnyama futhi ekhanyayo yemimoya enamandla futhi ezinzile ikhava ifana nekhwetha.
Ijubane lale mimoya eduze kwezigxobo lincishisiwe. Ezindaweni ezizungezile, izivunguvungu ezinxisekweni zakha ama-funnels ziphethwe. Ngakho-ke, umkhathi wama-brown amancanyana ansundu afana nomoya wegesi imidondoshiya, efana nejupita. Amandla abo anqunywa ngokungabingeli lwesivunguvungu sendawo, izivunguvungu ngazinye, kanye namaphethini wephethini lomhlaba wonke amboza wonke umhlaba.
"Ukulinganisa izinguquko ekukhanyiseni kwezinto ezijikelezayo ezinjalo ngokuhamba kwesikhathi, ungazakhela amamephu alinganiselwe amabala abo, - ufingqe uDaniel Apai. - Ngokuzayo, le ndlela izosetshenziselwa imephu amaplanethi ohlobo lomhlaba kwezinye izinhlelo okunzima ukucubungula ngezinye izindlela. "
Umthombo: Isayensi Enqunu