Poyasnenie: Tumannost' Oriona predstavlyaet soboi kolybel' zvezdoobrazovaniya, zapolnennuyu molodymi zvezdami i porodivshimi ih oblakami gaza i pyli. Odnako dlya planetnyh sistem mesto ih rozhdeniya yavlyaetsya surovoi i opasnoi sredoi. Hotya formirovanie pylevyh protoplanetnyh diskov, po-vidimomu, ochen' harakterno dlya tumannosti Oriona, snimki, poluchennye Kosmicheskim teleskopom im. Habbla, naglyadno demonstriruyut gromadnye trudnosti, stoyashie na puti formirovaniya polnocennyh planetnyh sistem. V kazhdom sluchae molodaya central'naya zvezda okruzhena diskom, znachitel'no prevoshodyashim po razmeru Solnechnuyu sistemu, kotoryi, veroyatno, soderzhit material dlya formirovaniya planetnoi sistemy. Odnako sil'noe ul'trafioletovoe izluchenie sosednih goryachih zvezd bystro razrushaet diski, sozdavaya, v konechnom schete, oblaka svetyashegosya gaza, napominayushie po forme komety, i ohvatyvayushie protoplanetnye sistemy. Takim obrazom, formirovanie planet vozmozhno tol'ko esli ono proishodit ochen' bystro. Po ocenkam issledovatelei, okolo 90 procentov molodyh protoplanetnyh diskov v Orione razrushatsya v techenie sleduyushih 100000 let.
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Publikacii s klyuchevymi slovami:
Protoplanetnye diski - protoplanetary disk - Orion Nebula - planet formation - Formirovanie planet - Tumannost' Oriona
Publikacii so slovami: Protoplanetnye diski - protoplanetary disk - Orion Nebula - planet formation - Formirovanie planet - Tumannost' Oriona | |
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