Um buraco negro monstruoso com 100 milhões de vezes a massa solar está se alimentando de gás, poeira e um anel de estrelas no centro da galáxia NGC-1097, localizada a 50 milhões de anos-luz. O anel de estrelas do buraco negro forma o olho da galáxia que foi fotografado pelo Telescópio Espacial Spitzer da NASA.
A estranha galáxia espiral estende seus longos braços de estrelas vermelhas no espaço. Mas a NASA diz que o buraco negro no centro da Via Láctea é minúsculo se comparado com esse da NGC-1097, com a massa de apenas algumas milhões de vezes a massa solar.
“O destino desse buraco negro e de outros como esse ainda é uma área ativa de pesquisa”, diz George Helou, diretor do Centro de Ciências do Spitzer da NASA. “Algumas teorias garantem que os buracos negros podem se acalmar e eventualmente entrar num estado de dormência como o buraco negro localizado no centro da via Láctea”.
“O anel de estrelas é outro tema fascinante de estudo pois é uma região onde estrelas estão sendo formadas numa alta taxa”, diz Kartik Sheth. Os braços espirais vermelhos da galáxia e o turbilhão localizado entre eles mostram poeira sendo aquecida pelas estrelas jovens, enquanto que a população de estrelas mais antigas na galáxia apresentam coloração azulada. Um ponto azul apagado à esquerda da imagem mostra uma galáxia companheira, enquanto que outros pontos representam estrelas de outras galáxias.
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