先前的研究只关注存在有明显活动星核的星系，这很可能导致结果产生偏差，Jahnke说。

Earlier studies looked only at galaxies with the brightest active nuclei, which could have biased their results, Jahnke said.

youdao

就它们与恒星的距离而言，其石质行星核恐怕需要极其长的成型时间，以至于在星核能够俘获气体前周围的气态盘恐怕就已经消散殆尽了。

At their distances from the star, the rocky planetary core would have taken so long to form that the gaseous disk would have dissipated before the core could attract the gas.

youdao

这个方程既适用于黑洞、中子星、白矮星及恒星，也适用于原子核。

The equation works on every body of matter and every particle of matter in the universe, including black holes, neutron stars, white dwarf stars, stars, and nuclei.

youdao