超新星

Combining the known distance to this standard candle supernova, based on the Cepheid measurements, with observations of supernovas at even greater distances, has helped to reveal the size and expansion rate of the entire Universe itself.

结合这种标准的燃烧类超新星距离，根据Cepheid的测量结果，再利用从更远距离对超新星的观测，有助于揭示整个宇宙的规模和扩张速度。

They have made numerous successful predictions of solar and lunar eclipses. Chinese astronomers were also the first in recording a supernova explosion in 1054, which was found to be the modern crab nebula supernova remnant.

他们还对日食、月食进行了成功的预测，又率先记录了在1054年发生的超新星爆炸，与现代的蟹状星云超新星遗迹相吻合。

The Crab Nebula is what remains of the supernova of the year 1054, and inasmuch as it has been theorized that neutron stars sometimes remain following supernova explosions, it is beli ...

蟹状星云带式1054年超新星爆炸的残留物，并且像这样的例子已经被理论化，其认为，在超新星的爆炸后可能会残留中子星。

The Crab Nebula -- The Crab Nebula, the result of a supernova noted by Earth-bound chroniclers in 1054 AD, is filled with mysterious filaments that are are not only tremendously complex, but appear to have less mass than expelled in the original supernova and a higher speed than expected from a free explosion.

蟹状星云-蟹状星云，在公元1054结果在地球方向的编年史家所指出的超新星，是充斥着神秘的细丝，不仅极其复杂，但似乎少质量比并驱逐了原超新星从一个更高的速度比预期的自由爆炸。

The Crab Nebula -- The Crab Nebula, the result of a supernova noted by Earth-boundchroniclers in 1054 AD, is filled with mysterious filaments that areare not only tremendously complex, but appear to have less mass thanexpelled in the original supernova and a higher speed than expectedfrom a free explosion.

蟹状星云-蟹状星云，在公元1054结果在地球方向的编年史家所指出的超新星，是充斥着神秘的细丝，不仅极其复杂，但似乎少质量比并驱逐了原超新星从一个更高的速度比预期的自由爆炸。

It should also help to determine whether most of the dust in the supernova remnant came from the massive star before it exploded, or from the rapidly expanding supernova ejecta.

这还可以帮助人们确定，超新星遗迹中的大部分尘埃究竟源于爆发前的大质量恒星，还是来自迅速膨胀的超新星抛出物。

In other Now the galax y ies is full of gas and dust, which could hide a distant supernova optically, but the remnant which would still produce s detectable radio wave s and X-rays.

如今的星系充满了气体和粉尘，这会从视觉上掩盖遥远的超新星，但超新星残骸仍会产生可检测到的射电电波和 X 射线。

The new technique reduced the distance ladder to three "rungs":(1) The distance to galaxy NGC4258 is measured using straightforward geometry and Kepler's laws;(2)Cepheids in six more distant galaxies are used to calibrate the luminosity of Type Ia supernovae;(3) The Hubble constant is measured by observing a brighter milepost marker, Type Ia supernovae, in more distant galaxies hundreds of millions of light-years away, embedded in the expanding universe.

这种新技巧简化了距离跳跃为三个"阶梯"：1、星系NGC 4258的距离采用开普勒定律和简单直接的几何方法精确测量；2、在6个更远的星系中的造父变星用来校准Ia超新星的光度；3、深嵌于数亿光年外的膨胀宇宙中的星系中的Ia超新星——一种遥远而明亮的量天尺，被用于精确测定哈勃常数。

But unlike other Type 1a remnants, including the well-studied Tycho, Kepler, and SN 1006, SNR 0104 is definitely not spherical.

但是，其他1a型超新星，包括充分研究过的第谷超新星、开普勒超新星以及超新星1006的遗迹都是球形的，SNR 0104却显然不是球体。

With its proximity, the Supernova 1987A (SN1987A) is the first studied supernova of all time. This picture, taken with the Hubble Space Telescope by Dr J.C.S.

图中的超新星 1987 A 是近四百年来最接近我们的超新星爆发，当然成为首个被仔细研究的超新星对象！

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了