Then, by measuring the total amount of rest-frame ultraviolet light, researchers can estimate the number of high-mass stars in the galaxy.
然后，经由测量静止座标光谱中紫外光的总量，研究人员就能够估计该星系里大质量恒星的数目。
In our own Milky Way, which is quite typical of nearby, massive spiral galaxies, the number of observed high-mass stars indicates that stars are forming at a rate of a few solar masses a year.
银河系可说是我们周遭大质量螺旋星系的典型，根据观测到的大质量恒星数目判断，银河系的恒星形成率为每年数个太阳质量。
Astronomers who examined eight relatively nearby galaxies have found evidence of a surprisingly high abundance of faint, low-mass stars — each has about 10 times as many as the Milky Way.
对八个相对较近的星系进行了测算的天文学家们找到证据——有令人惊异的数量的黯淡的低质量恒星存在，它们每一个都跟银河的十倍那样多。
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