Avtory i prava: H. Olofson ( Stokgol'mskaya observatoriya ) i dr.
Poyasnenie:
Zvezda TT Lebedya yavlyaetsya holodnym krasnym gigantom , iz kotorogo
duet zvezdnyi veter. Na segodnyashnei kartinke pokazano izobrazhenie TT Lebedya, sdelannoe s pomosh'yu soglasovannoi cepochki millimetrovyh radioteleskopov
na dline volny izlucheniya molekul ugarnogo gaza (CO), kotorye nahodyatsya v okruzhayushem zvezdu prostranstve. Izobrazhenie predstavleno v uslovnyh cvetah. Izluchenie v centre kartinki
ispuskaet obolochka, vybroshennaya krasnym gigantom tol'ko neskol'ko soten let nazad, togda kak tonkoe kol'co radiusom 1/4 svetovogo goda predstavlyaet soboi gazovuyu obolochku, rasshiryayushuyusya uzhe 6 tysyach let. Uglerodnye zvezdy
tipa TT Lebedya nazvany tak, potomu chto v nih soderzhitsya bol'shoe kolichestvo molekul, soderzhashih uglerod. Uglerod yavlyaetsya "zoloi", ostayusheisya ot yadernogo
goreniya geliya v nedrah zvezd. Uglerodnye zvezdy teryayut znachitel'nuyu dolyu svoei massy v vide zvezdnogo vetra , obogashaya elementami uglerodnoi
gruppy mezhzvezdnyi gaz - veshestvo, iz kotorogo budet sostoyat' budushee pokolenie zvezd . Zvezda TT Lebedya
nahoditsya na rasstoyanii 1500 svetovyh let v sozvezdii Lebedya .
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Publikacii s klyuchevymi slovami:
stellar wind - red giant - krasnyi gigant - zvezdnyi veter - uglerodnaya zvezda - uglerod
Publikacii so slovami: stellar wind - red giant - krasnyi gigant - zvezdnyi veter - uglerodnaya zvezda - uglerod | |
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