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Quasares: são os objetos mais luminosos do Universo. Têm aparência estelar, emissão forte em rádio e espectro com grandes redshifts, indicando que são muito distantes. Fonte de energia: Acredita-se que seja gás sendo acelerado por um buraco negro supermassivo central. #Astronomia #nasa #desafio #SpaceX #spacetoday
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O diagrama de Hubble foi criada em 1929, a partir da análise das velocidades radiais de galáxias, medidas pelo Slipher Vesto a partir de redshifts de linhas espectrais. Ela representa a velocidade de galáxias de acordo com a distância, ou em outras palavras, mais uma galáxia é longe de nós, mais parece se afastar rapidamente. É a partir deste estudo que o conceito de expansão do universo aparece. #física #astrofísica #matematica #estudantes
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