Nebulosa do Caramgueijo

Sobre esta imagem

Os astrónomos produziram uma imagem altamente detalhada da Nebulosa do Caranguejo, combinando dados de telescópios que abrangem quase toda a largura do espectro eletromagnético, das ondas de rádio vistas pela matriz muito grande de Karl G. Jansky (VLA) para o poderoso brilho de raio X como visto pelo observatório de raios-X Chandra em órbita. E, entre essa amplitude de comprimentos de onda, a visão nítida visível da Telescópio Espacial Hubble e a perspectiva infravermelha do Telescópio Espacial Spitzer.

A Nebulosa do Caranguejo, resultado de uma brilhante explosão de supernova vista pelos chineses e outros astrônomos no ano de 1054, é de 6.500 anos-luz da Terra. No centro é uma estrela de nêutrons superdensa, girando uma vez a cada 33 milésimos de segundo, disparando faróis giratórios de farol e ondas de rádio – um pulsar (o ponto brilhante no centro da imagem). A forma intrincada da nebulosa é causada por uma interação complexa do pulsar, um vento de movimento rápido de partículas provenientes do pulsar e material originalmente ejetado pela explosão da supernova e pela própria estrela antes da explosão.

Esta imagem combina dados de cinco telescópios diferentes: o VLA (rádio) em vermelho; Telescópio espacial Spitzer (infravermelho) em amarelo; Telescópio espacial Hubble (visível) em verde; XMM-Newton (ultravioleta) em azul; e o Observatório de raios-X Chandra (raio-X) em roxo.

143 thoughts on “Nebulosa do Caramgueijo

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