The image from the Hubble Space Telescope is a spectacular visual reminder of just how thin disk galaxies can be.
这张哈勃太空望远镜拍摄的照片让我们震撼于这个星系的平整度。
The influence on the spin vector distributions by the intrinsic flatness of disk galaxies is taken into account.
本文还考虑了星系内禀扁度对场星系旋转矢量分布的影响。
Van den Bosch is particularly intrigued by the formation of disk galaxies and of massive black holes in galactic centers.
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。
In the current paradigm of galaxy formation, disk galaxies are assumed to form by the cooling and condensation of baryons within dark matter halos.
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。
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。
Spiral galaxies, such as the Milky Way, consist of a flat disk with a bulging center and surrounding spiral arms.
象银河系一样，螺旋星系由一个中间鼓起的扁圆盘和环绕在周围的螺旋形手臂组成。
Next, the astronomers checked the galaxies for the subtle signs of a recent galactic collision, such as a warped disk or a trailing tail of stars.
接下来，天文学家们检测了近期发生星系碰撞的微妙标志，例如扭曲的碟状中心或者拖着尾巴的恒星。
Active galaxies give off bright radiation from their cores, where gas heats up as it is compressed into a swirling accretion disk encircling the black hole.
活动星系从它们的核部发出明亮的光芒，在那里，气体被加热并压缩成一个漩涡状的圆盘，漩涡的中心便是黑洞。
Elliptical galaxies do not take on the flat-disk or spiral shapes that most galaxies do.
椭圆星系并不具有大多数星系具有的扁圆或是螺旋型的形状。
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.
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。
It remains in the spiral category because of the flatness of the main disk of stars as opposed to the more spherically rotund (or ellipsoidal) class of galaxies called "ellipticals".
它之所以属于螺旋星系范畴，是因为相对于那些更趋近于球体(或椭球)的星系来说，它的主要部分更平。
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.
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.
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。
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