加拿大的一架望远镜在两个月内,捕捉到13个快速射电暴,此中有一个很差别平常的重复电波,这个电波来自15亿光年外。科学家表现,不能清除这一电波是来自外星宇宙飞船的大概性。
Astronomers have revealed details of mysterious signals emanating from a distant galaxy, picked up by a telescope in Canada.
加拿大的一架望远镜捕捉到来自迢遥星系的秘密信号,克日天文学家揭秘了这些信号的细节。
emanate ['eməneɪt]:vt.vi.发出,散发
The precise nature and origin of the blasts of radio waves is unknown.
这些快速射电暴的性子和泉源尚不得而知。
Among the 13 fast radio bursts, known as FRBs, was a very unusual repeating signal, coming from the same source about 1.5 billion light years away.
在这13个快速射电暴(FRB)中,有一个电波很差别平常,它来自15亿光年外,而且是重复电波。
light year:光年
小知识:什么是“快速射电暴”?
宇宙中有一种快速发生,辐射能量极高又敏捷消散的秘密征象,叫做“快速射电暴”(FRBs),这种发作连续时间极短,通常只有几毫秒,是一种物理劈头尚不明白的河外射电束,却可以或许开释出相称于太阳在一整天内开释的能量,以至于可以在数十亿光年之外的间隔被观察到,但它们详细的产生气制毕竟是什么,仍旧存在争论。乃至有人以为这是外星人发出的信号。
Such an event has only been reported once before, by a different telescope.
此前研究者用差别的望远镜也捕获到过同样的电波。
"Knowing that there is another suggests that there could be more out there," said Ingrid Stairs, an astrophysicist from the University of British Columbia (UBC).
“第二次捕获到重复电波,意味着我们还大概捕获到更多,”不列颠哥伦比亚大学的天体物理学家英格丽·斯泰尔斯称。
astrophysicist:[,æstrəʊ'fiːzɪsɪst]:n.天体物理学家
截图来自BBC网站
"And with more repeaters and more sources available for study, we may be able to understand these cosmic puzzles - where they're from and what causes them."
“有了更多重复电波和更多可供研究的资源,我们大概可以或许解开这些宇宙的谜题:这些电波是从何而来,又是什么缘故原由造成的。”
The CHIME observatory, located in British Columbia's Okanagan Valley, consists of four 100-metre-long, semi-cylindrical antennas, which scan the entire northern sky each day.
捕获到这一电波的是加拿大氢强度测绘实行射电望远镜。它位于不列颠哥伦比亚省奥卡诺根山谷,由4个100米长的半圆柱天线构成,天天都会对整个北部天空举行扫描。
The telescope only got up and running last year, detecting 13 of the radio bursts almost immediately, including the repeater.
这台望远镜于客岁启用,并在启用后不久就检测到13次射电爆,包罗这个重复电波。
The research has now been published in the journal Nature.
这一研究发表在《天然》杂志上。
"We have discovered a second repeater and its properties are very similar to the first repeater," said Shriharsh Tendulkar of McGill University, Canada.
加拿大麦基尔大学的斯里哈什·滕杜卡尔说:“我们发现了重复的电波,它的属性与上一次发现的电波非常相似。”
"This tells us more about the properties of repeaters as a population."
“这使我们得到了更多关于这些电波团体特性的信息。”
There are a number of theories about what could be causing them.
现在存在多种理论表明这些宇宙电波的泉源。
They include a neutron star with a very strong magnetic field that is spinning very rapidly, two neutron stars merging together, and, among a minority of observers, some form of alien spaceship.
比方,这些电波大概来自一颗具有强磁场的快速旋转的中子星,大概是两颗中子星归并在了一起等。别的,有少数观察者以为,这些电波实在是来自某种外星宇宙飞船。
magnetic field:磁场
各人看到这则消息后,开始热烈讨论宇宙深处秘密信号到底要不要回应?外星人是不是要来找我们了?网友的批评也是各种戏多:
内容泉源:BBC、举世网、新浪微博
泉源:中国日报网,作者:yaning
保举阅读
中国那些事儿丨暖心!这个短视频感动环球
打造宜居都会要以丛林都会为载体
冬吃萝卜有啥利益?收好这份"吃萝卜大全"
卢浮宫2018年游客量破记录 碧昂丝是大功臣