quasar

Therefore , quasar absorption lines cosmological probes of formation and evolution of galaxies.

对类星体吸收线的研究将有助于我们了解星系的形成和演化.

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They do so by combining quasar spectra with numerical simulations of structure formation.

他们的做法是将类星体光谱和结构形成的数值模拟结果结合在一起.

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