ADM-201 dump PMP dumps pdf SSCP exam materials CBAP exam sample questions

如果巨引源吞没我们的星系会怎样 – 译学馆
未登录,请登录后再发表信息
最新评论 (0)
播放视频

如果巨引源吞没我们的星系会怎样

What If the Great Attractor Swallowed Our Galaxy?

[Music playing]
[音乐播放中]
These balls represent
这些小球正在演示
one of the strangest phenomena currently taking place in our Universe.
宇宙所发生的最神奇的现象之一
Each ball symbolizes one of 100,000 galaxies
每颗球代表十万星系中的一个
including our own
我们的星系也在其中
that are currently being pulled towards a mysterious point in our universe
它们被牵引向宇宙中的某个神秘的点
called The Great Attractor.
这个点叫巨引源
We can’t see exactly what is pulling us there,
我们无法确切观察到牵引力的来源
but the only force that would be capable of doing so is gravity.
但唯一可能做到的力量是引力
So whatever is out there,
因此 不管产生引力的是什么
it’s massive and unrelenting.
它一定十分巨大且持续不断
How far away is The Great Attractor?
巨引源距离我们多远?
What happens when our galaxy get pulled into it?
我们星系被牵引到里面时会发生什么?
Will we ever be able to see the source of its power?
我们会有看清这股力量来源的能力吗?
This is What If
欢迎来到《自然无常》
and here is what whould happen if The Great Attractor swallowed our galaxy.
下面会介绍 如果巨引源吞没了我们星系会怎样?
Going back to our ball example,
回到我们用小球举的例子
you can see that if you have 100,000 galaxies
你可以看到 假设有十万个星系
all moving towards the same destination,
全都向同一个方向移动
the odds are that some,
有可能某些星系
if not most of them, are going to collide with each other!
甚至是大多数星系 会彼此碰撞!
And if you’ve been watching our videos,
如果你曾看过我们的视频
you probably know that almost every one
或许你就知道 几乎每一个星系
of those galaxies would have a black hole at its center.
在其中心都会有一个黑洞
So what can we expect to happen
那么 我们可以预见
when nearly 100,000 black holes merge with one another?
近十万个黑洞相互融合会发生什么吗?
Before we get ahead of ourselves,
我们不要过早下定论
let’s get to know these 100,000 galaxies a little better.
先来更多地了解这十万星系
Our Galaxy, the Milky Way,
我们的星系 银河系
belongs to a group of a few dozen galaxies called the Local Group.
属于包含数十个星系的本星系群
Cool.
但是呢
Just like the Sun’s gravity pulls the Earth toward it,
就像太阳的引力将地球拉向它一样
our Galaxy is pulled towards the other galaxies in our Local Group.
我们星系也被拉向本星系群中的其他星系
Our Local Group belongs to an even bigger collection of galaxies
本星系群属于更大的星系集合
called the Virgo supercluster,
叫做室女超星系团
and that supercluster belongs to an even larger supercluster,
而它又属于另一个更大的超星系团
known as Laniakea.
叫做兰天超星系团
The one thing all these clusters have in common is
这些星团的共同之处在于
that they’re all being pulled towards one specific spot,
它们都被牵引向某个特定的地点
220 million light-years away, known as the Great Attractor.
即2亿2千万光年外的巨引源
Its vast distance away,
由于距离之远
coupled with all the gas and dust that surrounds it,
再加上环绕它的气体和尘埃
has made it virtually invisible ever since its discovery.
自发现以来我们都无法确切观测到它
Until now, thanks to X-ray and radio astronomers,
直到现在 借助X射线和射电天文学
we can now see behind this cloud of gas and dust,
我们才得以穿过气体和尘埃构成的云团
so now we know that
才能知道
this Great Attractor is really just another supercluster
巨引源实际上就是另一个超星系团
named the Norma Supercluster.
叫做矩尺座超星系团
Norma has the mass of about 1,000 trillion suns,
矩尺座有近1000万亿个太阳那么重
which might explain why it’s so attractive to these 100,000 galaxies.
这或许可以解释它能吸引十万星系的原因
So now we know where our Galaxy is heading,
我们现在知道我们星系移动的方向
and why we’re heading there.
也知道移动的原因
But what could happen along the way?
但这个过程中会发生什么?
Well, for one thing, we could collide
一方面 我们可能会
with another of the 100,000 galaxies heading that way,
和前进方向上的十万星系中的某一个相撞
the most likely one being our closest neighbor, Andromeda.
最有可能的对象是距离我们最近的仙女座
If these two spiral galaxies collided,
如果这两个螺旋星系相撞
they would merge into one new elliptical galaxy.
它们会结合成新的椭圆星系
During the collision, vast clouds of hydrogen would become compressed,
在碰撞中 巨大的氢气云会被压缩
and rapidly create new stars.
迅速形成新的恒星
This would result in the premature aging of the “new” galaxy as it used up its fuel.
这会导致“新”星系耗尽燃料而过早老化
That doesn’t seem too bad,
这似乎并没有很糟糕
but that’s because the black holes in the center of these galaxies haven’t collided yet.
但是那是因为星系中心的黑洞没有相撞
When these two black holes merge,
若是两个黑洞相结合
it will release energy equivalent to 3 times the mass of our Sun within a matter of seconds.
仅仅在数秒内便可释放相当于三倍太阳质量的能量
That would be enough power to create a disturbance in the space-time continuum.
这能量足以对时空连续体产生扰动
And that’s just two black holes colliding.
而且 这只是两个黑洞碰撞的情况
If all the black holes of the 100,000 galaxies
如果十万星系的黑洞
drifting towards the Great Attractor merged together,
在朝巨引源的方向漂移的过程中发生碰撞
it would release more energy than we could ever imagine.
它们会释放超乎我们想象的巨大能量
But luckily we won’t have to worry about that,
然而 我们很幸运地不需为此担忧
because these galaxies will probably never arrive at the same spot and collide.
因为星系大概率不会到同一个点发生碰撞
You see, the Great Attractor is also being pulled
你知道的 巨引源也在被其他巨型星系团
deeper into space by other massive clusters.
牵引至宇宙深处
And these 100,000 galaxies are also constantly drifting apart,
而且 这十万星系也在不断漂离
further away from each other.
相互远离
The Universe is constantly expanding,
宇宙在不断膨胀
and that expansion will be stronger than even the Great Attractor’s pull.
膨胀的强度要高于巨引源的牵引
What will eventually happen is that Laniakea itself will come apart,
最终会发生的是兰天超星系团的瓦解
and all the galaxies within this supercluster
这个超星系团所有的星系
will start to drift even further apart.
都会开始进一步漂移 越离越远
So there’s no big collision,
也就是说 不会有大碰撞
no humanity-destroying event to end this episode.
也不会有人类毁灭来终结这部连续剧
Just a bunch of galaxies drifting off into the abyss.
只有星系们四散开 漂向深渊
Will they ever stop?
它们最终会停下吗?
Well, that’s a story for another WHAT IF.
那就是另一个《自然无常》的故事了
[Music playing]
[音乐播放中]

发表评论

译制信息
视频概述

本视频讲述了巨引源是什么及巨引源对我们星系可能造成的影响

听录译者

收集自网络

翻译译者

庭亭

审核员

审核员SR

视频来源

https://www.youtube.com/watch?v=pAdBa86gS5w

相关推荐