查询词典 active nucleus

Each galaxy also contains an active galactic nucleus, evidence that the chaos is allowing gas to fall into the regions around central black holes as well as feeding starbursts.

每一个星系都包含一活动星系核，有证据表明混乱正在使气体落入中心黑洞周围的区域，同时也为星暴提供着给养。

Now, in a posting on the Galaxy Zoo blog, Dr Keel and Dr Lintott suggest that the galaxy right next door to the voorwerp used to be a quasar (a very bright active galactic nucleus) that has since eaten up all its fuel.

现在，在星系动物园博客上的一个帖子中，Keel 博士和 Lintott 博士认为在"物体"旁边的星系曾经是个类星体（一种很明亮的活跃星系核），但现在已经把它的燃料给消耗光了。

Active MAPKs translocate into nucleus and thus regulate gene expression. Now, three main parallel pathways of MAPK family have been discovered : ERK1/2, JNK and p38. They can induce different gene expression and thus cause different cell reaction.

现已发现MAPK家族主要有三条平行的信号转导通路：ERK1／2、JNK和p38，三条通路可以活化不同的转录因子，启动不同的基因表达，从而引发不同的细胞反应。

Blasting out from the active galactic nucleus toward the upper left, the energetic jet extends about 13,000 light-years.

高能喷流从活动星系核喷向影像左上方，一直延长大约有1.3万光年远。

Other observations have revealed that NGC 4945 has an active galactic nucleus, meaning its central bulge emits far more energy than calmer galaxies like the Milky Way.

其他的观测资料显示， NGC4945拥有一个活动星系核，这意味着：跟象银河系这样比较平静的星系相比，其中心的凸出区域所释放的能量要多得多。

Blazars are one of the most extreme classes of active galactic nucleus, with high luminosity, large amplitude and rapid variability, high and variable polarization, radio core-dominance, and apparent superluminal speeds. Their broad band emission extends from radio up to gamma-ray band, and is dominated by non-thermal process.

中文摘要：在AGNs中，Blazar天体是具有极端性质的一类，它以大幅快速光变、高且变化的偏振、射电核主导、视超光速运动、全波段非热辐射为主要特征。

Alternatively, the spectral softening above 2 GeV could be due to gamma-ray absorption via photon-photon pair production on the soft X-ray photon field of the host active galactic nucleus, but such an interpretation would require the dissipation region to be located very close (l~100 gravitational radii) to the black hole, which would be inconsistent with the X-ray spectrum of the source.

另外的关于2 GeV以上能谱变软的可能解释是高能光子和寄主活动星系核的软X射线辐射场通过电子对产生反应而被吸收，但是这个解释要求反应区域要很靠近中心黑洞(1~100倍引力半径)，这和3C 454.3的X射线测量谱相矛盾。

Blazars are one of the most extreme classes of active galactic nucleus, with high luminosity, large amplitude and rapid variability, high and variable polarization, radio core-dominance, and apparent superluminal speeds.

在活动星系核中，Blazar天体是具有极端性质的一类，它以大幅快速光变、高且变化的偏振、射电核主导、视超光速运动、全波段非热辐射为主要特征。

The characteristics of tetrad was that the nucleus and Golgi bodies being in the active state.

四分孢子的显著特征是细胞核和高尔基体呈活跃状态。

Active brain regions of awake word＞anesthesia word in group D were observed in left thalamus,frontal lobe and limbic lobe and right basal nucleus.

深麻醉组所激活的脑区为，左丘脑、额叶、边缘叶和右基底核的部分脑区，结合PDP成绩，提示这些脑区可能与外显记忆和内隐记忆相关。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。