Jovem Aglomerado de Estrelas Trumpler 14 do Hubble

Por que o aglomerado de estrelas Trumpler 14 tem tantas estrelas brilhantes? Porque é tão jovem. Muitas estrelas cluster formaram-se apenas nos últimos 5 milhões de anos e são tão quentes que emitem raios X detectáveis.

Em aglomerados estelares mais antigos, a maioria das estrelas jovens já morreu – tipicamente explodindo em uma supernova – deixando para trás estrelas que são mais fracas e mais vermelhas.

Trumpler 14 abrange cerca de 40 anos-luz e fica a cerca de 9.000 anos-luz de distância, na beira da famosa Nebulosa Carina. Um olho perspicaz pode identificar dois objetos incomuns nesta imagem detalhada de 2006 de Trumpler 14 pelo Telescópio Espacial Hubble.

Primeiro, uma nuvem escura que acabou de sair do centro pode ser um sistema planetário tentando se formar antes de ser destruído pelos ventos energéticos das estrelas massivas do Trumpler 14.

O segundo é o arco no canto inferior esquerdo, que uma hipótese sustenta é a onda de choque supersônico de uma estrela rápida ejetada há 100.000 anos a partir de um aglomerado estelar completamente diferente.

Imagem Direitos autorais e créditos de imagem: NASA, ESA e J. Maíz Apellániz (IoAoA Espanha);
Confirmação: N. Smith (U. Arizona)

Telescópio Espacial Hubble

Texto: Júlia Machado

(NASA)

146 thoughts on “Jovem Aglomerado de Estrelas Trumpler 14 do Hubble

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