这种假设或许可以解释为什么活跃星系中只有10%存在喷流，以及它们如何持续演变。
This scenario may explain why only 10% of active galaxies have radio jets, and how active galaxies evolve over time.
许多星系都呈现出双泡状物质喷流并且伴有核心区域喷发出的能量，不过“费米气泡”已然超越了这种简单的解释。
Lots of galaxies exhibit two-lobed jets of matter and energy erupting from their cores, but the "Fermi bubbles" defy easy explanation.
但问题是，这仅仅是M 87过去的行为还是它将会发生在每个活动星系核或者单个喷流中？
But the question is, does this happen to every single jet or active nucleus, or are we seeing some odd behavior from M87?
喷流由（星系核心的）超大质量黑洞补充（物质、能量），该黑洞是已知质量最大的黑洞之一。
The jet is powered by accretion onto a supermassive black hole, one of the most massive black holes yet discovered.
对于遥远星系中的黑洞喷流而言，它们由于距离原因而很难研究，而爆发现象很可能提供了一个良好的研究黑洞喷流变化的机遇。
The flare-up may provide insights into the variability of black hole jets in distant galaxies, which are difficult to study because they are too far away.
本篇论文主要对射电强活动星系核的中央引擎和射电喷流的性质进行了一些研究。
In this thesis, we present the studies of the central engine and radio jets in radio-loud Active Galaxies Nuclei.
当气体集中形成恒星，所产生的喷流与爆炸会将物质向外推回星系际空间，这是一种负向的反馈机制。
As gas pools, it turns into stars, whose outflows and explosions push material back out into intergalactic space-a process of negative feedback.
这道喷流是受到隐匿在活跃星系半人马座a附近的超大黑洞所驱使，这黑洞约莫数百万个太阳的质量。
The jets are expelled by a violent black hole millions of times the mass of our Sun embedded deep in the center of nearby active galaxy cen a.
这道喷流是受到隐匿在活跃星系半人马座a附近的超大黑洞所驱使，这黑洞约莫数百万个太阳的质量。
The jets are expelled by a violent black hole millions of times the mass of our Sun embedded deep in the center of nearby active galaxy cen a.
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