O que são galáxias emaranhadas? Veja nova foto do telescópio Hubble

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A Nasa divulgou uma imagem do emaranhado cósmico MCG+05-31-045, que foi tirada com o telecópio Hubble; são duas galáxias interagindo e estão localizadas a 390 milhões de anos-luz de distância, fazendo parte do aglomerado de galáxias Coma

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Geralmente, quando esse tipo de interação acontece, as estrelas de ambas as galáxias podem permanecer juntas, mas seus gases tendem a se misturar e comprimir pelas ação das forças gravitacionais, formando novas estrelas, conforme explica o site da Nasa

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Quando as estrelas quentes, massivas e azuis morrem, resta pouco gás para formar novas gerações de estrelas jovens para substituí-las

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Esse é o processo que forma as galáxias em espiral que compõem o aglomerado Coma, que inclusive pode ser visto por astrônomos amadores em um telescópio simples de quintal

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Os cientistas acreditam que esse será o destino da MCG+05-31-045: a galáxia espiral menor está sendo puxada e incorporada pela maior, o que levará à formação de muitas estrelas novas (na foto, estelas nascendo em imagem do telescópio Hubble)

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Essas estrelas vão morrer rapidamente, deixando para trás uma galáxia elíptica e com estrelas vermelhas; esse processo, captado pelo Hubble, vai levar milhões de anos até se completar

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CNNBRASIL.COM.BR

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