这个扭矩虽然量级很小，但对盘星系的角动量演化是一个长期的效应。
The absolute value is small, but the long term influence to the evolution of the dynamics of the disk galaxy is not negligeable.
这张高清图片展现了这个星系壮观的的恒星与星尘盘的正面特征，背景上还有这一些星系，有些还能透过M101 看到。
The sharp image shows stunning features in the galaxy's face-on disk of stars and dust along with background galaxies, some visible right through M101 itself.
这个星系以其浅蓝色盘、碎片状云形成的网以及从中心区域喷发出来看似炽热的羽状氢爆。
The galaxy is remarkable for its bright blue disk, webs of shredded clouds and fiery-looking plumes of glowing hydrogen blasting out of its central regions.
极环星系是种稀有的星系类型，它们有着几乎和银盘平面垂直，呈环形公转的大量的恒星、气体和星尘。
A rare galaxy type, polar ring galaxies have a substantial population of stars, gas, and dust orbiting in rings nearly perpendicular to the plane of the galactic disk.
科学家们知道行星是从年轻的恒星周围的物质盘中形成的，但是理论认为从尘埃盘到行星系统的转变非常快，人们很少见到在这一阶段的物体。
Scientists know planets form out of the discs of material around young stars, but theory says the transition from dust disc to planetary system is rapid and few objects are caught during this phase.
与星系群其它星系之间相互作用的引力潮可能导致了NGC 3190的旋臂不对称地环绕中心，而星系盘也出现了扭曲。
Gravitational tidal interactions with other members of its group have likely caused the spiral arms of NGC 3190 to appear asymmetric around the center, while the galactic disk also appears warped.
这个新模型追踪了海王星轨道外数无数个微小物体的运行轨迹，它可以帮助天文学家计算出其他星系尘埃盘中行星的特性。
The new model, which tracks thousands of tiny particles beyond the orbit of Neptune, could help astronomers work out the properties of planets in other stars' dust disks.
这种奇怪的设置可能是由于盘状星系捕获了途径的星系中的物质，而被捕获的物质形成了这个旋转的环形所致。
The bizarre configuration could have been caused by the chance capture of material from a passing galaxy by the disk galaxy, with the captured debris strung out in a rotating ring.
画面上方横着的是遥远的星星之河和暗尘云，这是旋涡星系我们的银河系银盘的一部分。
Across the top of the image runs a distant stream of bright stars and dark dust that is part of the disk of our spiral Milky Way Galaxy.
我们之所以很少能看到这么薄的星系，主要是由于我们的地球一定要处在(接近于)这些超薄盘状星系据推测所在的平面内才能看到薄的那一面。
Galaxies that appear this thin are rare mostly because our Earth must reside (nearly) in the extrapolated planes of their thin galactic disks.
远离螺旋星系的盘状物出现在大约400的位置，而螺旋星系惊人的美景出现在500以后。
A pan away from a spiral galaxy occurs at about 4:00, and breathtaking vistas of the spiral occur until past 5:00.
含有脉冲星和吸积盘的双星系统出现在大约1430的位置。
Binary star systems containing a pulsar and an accretion disk occur beginning at about 14:30.
范登柏希特别著迷于盘形星系与星系中心超大质量黑洞的形成过程。
Van den Bosch is particularly intrigued by the formation of disk galaxies and of massive black holes in galactic centers.
目前的星系形成理论认为，盘状星系由暗晕中的重子物质冷却并坍缩而成。
In the current paradigm of galaxy formation, disk galaxies are assumed to form by the cooling and condensation of baryons within dark matter halos.
同时，从三维盘状星系密度波的稳定性讨论推出了径向速度弥散度的变化规律。
We also obtain the variation of the radial dispersion of velocities with r through the stability of the density wave in three-dimensional dishlike galaxies.
NGC 2976不像典型的涡旋星系：它有一个星暴盘，但看不到旋臂；
NGC 2976 does not look like a typical spiral galaxy. It has a star-forming disk, but no obvious spiral pattern.
在早型的以发光天体为主体的盘状星系中，根据光度分布规律可以得到面密度分布。
The mass distribution of surface density can be derived from the laws of surface luminosity distribution for earlier-type discoid galaxies, of which the main contents are bright.
初始均匀的磁场将缠卷而在星系盘中形成螺旋形的结构，其中磁场和星际气体是冻结在一起的。
The initial uniform magnetic field will wind into the spiral structures in the galactic disk, in which the magnetic field and the interstellar gas are frozen together.
这些讨论表明，活动星系核的短时标光变特征对厚吸积盘模型提供了强有力的支持。
The conclusion is: the short term variability behavior provides a strong support to the thick accretion disk model of AGN.
也有使用有价值的人格评估工具，如星系盘文件。
There is also value in using personality assessment tools such as the DISC Profile.
星系盘中的磁场处于磁重平衡状态。
The magnetic fields of galaxies are in magneto-gravitational equilibrium.
该星系组中的引力作用给我们留下了明显的信号，其中包括NGC 3628扭曲膨胀的星系盘和M66拉长的螺旋臂。
Gravitational interactions between galaxies in the group have also left telltale signs, including the warped and inflated disk of NGC 3628 and the drawn out spiral arms of M66.
本文从密度波理论出发，讨论三维盘状星系的旋臂结构。
In this paper we discuss the spiral structure of dish galaxies in three-dimension according to the density wave theory.
该图像突出了星系的结构：一个微妙的，围绕着一个明亮的红色隆起核，并联运行的尘埃带星蓝盘，以及一个透明的外晕。
The image highlights the galaxy's structure: a subtle, reddish bulge surrounding a bright nucleus, a blue disk of stars running parallel to the dust lane, and a transparent outer halo.
本文中我们利用盘不稳定模型和星爆模型的基本思想，模拟活动星系核在光学波段的光度和光谱斜率变化，并将模拟的结果和观测进行比较。
In this paper, using disk-instability model and starburst model, the AGN optical variability and spectral slope variability are simulated and confronted with observations.
本文结果可用于类星体和星系核吸积盘。
The result of this paper may be applied to the accretion discs in quasars and AGN.
这三个星系均为大型螺旋星系，之所以看上去有所不同是因为其星系盘朝向我们的视角不同。
All three are large spiral galaxies. They tend to look dissimilar because their galactic disks are tilted at different angles to our line of sight.
星系盘中遍布尘埃带，错综复杂的尘埃带正好位于明亮核心的前方。
The complexity of this dust is apparent directly infront of the bright nucleus, but is also evident in the dark absorbing lanes throughout the disc.
类似的效应也会出现在恒星周围的残馀盘，以及螺旋星系周围的气体圆盘上。
A similar effect flattens the debris disks around stars and the gaseous disks of spiral galaxies.
类似的效应也会出现在恒星周围的残馀盘，以及螺旋星系周围的气体圆盘上。
A similar effect flattens the debris disks around stars and the gaseous disks of spiral galaxies.
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