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白矮星

na.【天】white dwarf
网络white dwarf star; white dwarfs; White Draft

白矮星

英-汉网络释义

白矮星

white dwarf

白矮星(white dwarf)是已经没有能量来源的濒死恒星，会随时间逐渐冷却、变暗。以色列特拉维夫大学Dan Maoz等人有证据显 …

white dwarf star

白矮星（ white dwarf star）一类光度暗弱并处于演化末期的中、低质量恒星。之所以称为白矮星是因为开始发现的几颗都呈 …

white dwarfs

通常称之为白矮星（white dwarfs）的这类高密度恒星，其密度数量级达每立方英■几吨。最特别的例子是几年前由 G．P．克 …

White Draft

为什麽恒星死亡时会爆炸... ... 新星( Nova) 白矮星( White Draft) 黑洞( Black Hole,BH) ...

Sirius B

...画，写一段话。他大概写好了还有大把时间，默默地自娱自乐，画了太阳系，除了行星，还有白矮星（Sirius B）之类的，那 …

anã branca

单词本5疑难词整理 P12-P17_Καισαρ... ... estorninho 椋鸟 anã branca 白矮星 gigante vermelha 红巨星 ...

White drawf

矮行星名称出现以前的十九世纪，即先有白矮星（White drawf ）一词，白矮星是恒星死亡的残骸，逐渐释放热能的白矮星最后 …

例句：

An astronomer makes the case that the best place to search for habitable planets may be very close to white dwarf stars.

一位天文学家提出了一种新想法，在靠近白矮星的地方找最寻适合生命居住的行星。

The team studied the spectra , or chemical signatures, of the light from 146 white dwarfs located within a few hundred light-years of Earth .

研究小组研究了光谱，即光线的化学特征。光线来自 146 颗白矮星，它们位于距地球几百光年的范围之内。

A white dwarf is a "dead " star that doesn't generate its own energy like the sun does , Provencal says .

Provencal 表示，白矮星是一颗 “死 ”恒星，不像太阳那样自己生成能量。

The center of that star then transformed into a white dwarf , at once very hot (more than 100 , 000 Kelvin) and very small .

恒星的中心变成了白矮星，曾经非常热（10万 K ）非常小。

Our current theoretical models of white dwarfs don't predict this sort of behavior .

目前白矮星的理论模型不能模拟这种行为。

It's about as massive as Jupiter , but much more compact. It may be the remains of a carbon -rich white dwarf star .

这颗星球体积和木星差不多，但密度更高，很可能是富含碳的白矮星的残余物。

A white dwarf is the inert remnant of what used to be a sunlike star .

白矮星是类似太阳的恒星在死亡后所留下恒久不变的残骸。

White dwarfs compact much of the mass of the stars into a volume the size of the earth .

白矮星将其大部分质量紧密地聚集在相当地球大小的范围内。

In 1915 astronomers at the Mount Wilson Observatory determined that Sirius B was a white dwarf star , the first to be discovered .

在 1915年天文学家在威尔逊天文台测定天狼星 B 是一白矮星，是第一次发现的。

The gravitational pull of these white dwarfs can attract nearby asteroids that then get pulverized.

引力会推动白矮星靠近小行星然后通过碰撞变成宇宙尘埃。

The exploding white dwarf star is currently brightening in the Pinwheel Galaxy , nestled, from our perspective, within the Big Dipper .

目前，因为白矮星正在爆炸，整个风车星系都被照亮，但在我们看来，白矮星只是北斗七星间若隐若现的小星星罢了。

The central planetary nebula nucleus (PNN) or white dwarf central star is the fainter of these two stars .

行星状星云核心的中心可能是一颗比这两颗恒星更暗淡的白矮星。

Since a 7-solar-mass is too large to be a white dwarf or neutron star , it must be a black hole .

因为有着 7 个太阳质量的星体不可能是白矮星或中于星，所以它一定是黑洞。

Estimating how long white dwarfs have been cooling can help astronomers learn much about the age of the universe .

估算白矮星冷却的时间长度有助于天文学家深入研究宇宙的年龄。

Initially astronomers thought that the dwarf must be orbited by a second , cooler star .

最初天文学家猜想，一定有另一颗较冷的恒星绕著这颗白矮星运行。

Perhaps , then , white dwarfs are not such a gloomy sight after all.

如此一来，或许白矮星看起来就不会那麽阴郁而了无生趣了。

Recall that Type I supernova is the strong explosion of a nova that even the white dwarf is destroyed .

还记得 I 型超新星是足以令中心白矮星炸毁的新星爆发吗？。

Carbon Earths might be especially prevalent in more bizarre settings , such as the environs of white dwarfs and neutron stars .

碳造地球在更异乎寻常的环境里，如中子星和白矮星周边可能会更常见。

Some day , millions of years from now, LS IV-14 116 will cool off to the point where it becomes a bona fide white dwarf.

某天，几百万年后，LSIV-14116 将会冷却形成真正的白矮星。

It may be the remains of a carbon-rich white dwarf star.

可能为富含碳元素的白矮星遗骸。

白矮星

白矮星