注册 登录  
 加关注
   显示下一条  |  关闭
温馨提示!由于新浪微博认证机制调整,您的新浪微博帐号绑定已过期,请重新绑定!立即重新绑定新浪微博》  |  关闭

yauphilip 的博客

克己復禮為仁。一日克己復禮,天下歸仁焉

 
 
 

日志

 
 
关于我

www.LoveAGSdiamond.com for diamond inventory 中庸: 天命之謂性,率性之謂道,修道之謂教。道也者,不可須臾離也,可離非道也。是故君子戒慎乎其所不睹,恐懼乎其所不聞。莫見乎隱,莫顯乎微。故君子慎其獨也。喜怒哀樂之未發,謂之中,發而皆中節,謂之和,中也者,天下之大本也,和也者,天下之達道也。致中和,天地位焉,萬物育焉。 Zhong Yong: What Heaven has conferred is called The Nature

网易考拉推荐

天文学家发现这个星球的钻石,Astronomers discover planet made of diamond  

2012-10-14 15:53:11|  分类: 默认分类 |  标签: |举报 |字号 订阅

  下载LOFTER 我的照片书  |
 
天文学家发现这个星球的钻石

天文学家发现这个星球的钻石,Astronomers discover planet made of diamond - yauphilip - yauphilip 的博客 (路透社) - 天文学家们已经发现了一个奇异的星球,在我们的银河系后院围在一个小明星,这似乎是赛车的钻石。
新发现的行星是迄今为止密度比任何其他已知到目前为止,主要由碳组成。因为它是如此密集,科学家们计算出的碳结晶,所以这个陌生的世界很大一部分将有效地钻石。
斯威本科技大学的“这个星球的进化历史和惊人的密度都表明它是由碳 - 即一个巨大的钻石,环绕一颗中子星每两个小时的轨道那么紧,将适合在我们自己的太阳,说:”马修拜莱斯在墨尔本技术。
躺在4,000光年远,或从地球在银河系中心的方式向的八分之一左右,这个星球可能是一次的大质量恒星所剩下的,已经失去了它的外层,以所谓的脉冲星星轨道。
脉冲星是微小的,死的中子星,直径和旋转数百次,第二次,发射电子束的辐射只有约20公里(12.4英里)。
在脉冲星J1719-1438的情况下,梁定期打扫地球,并进行监察,在澳大利亚,英国和夏威夷的望远镜,天文学家们由于其看不见的同伴行星的引力检测调制。
测量表明,行星,围绕它的恒星每隔两小时和10分钟,有稍微的质量比木星,但密集,拜莱斯和他的同事发表在“科学”杂志上周四的20倍。
除碳,是新的行星也可能含有氧,这可能是更普遍的表面处,可能是越来越罕见朝向富含碳的中心。
它的高密度较轻的元素是氢和氦,这是类似木星的气体巨行星的主要成分,是不存在的。
这究竟是什么奇怪的钻石世界其实是想收了起来,但是,是一个谜。
“它看起来像什么,我不知道,我什至可以推测,说:”本Stappers曼彻斯特大学。 “我没有想象中的图片非常有光泽的对象是什么,我们正在寻找在这里。”
 
Astronomers discover planet made of diamond

 (Reuters) - Astronomers have spotted an exotic planet that seems to be made of diamond racing around a tiny star in our galactic backyard.
The new planet is far denser than any other known so far and consists largely of carbon. Because it is so dense, scientists calculate the carbon must be crystalline, so a large part of this strange world will effectively be diamond.
"The evolutionary history and amazing density of the planet all suggest it is comprised of carbon -- i.e. a massive diamond orbiting a neutron star every two hours in an orbit so tight it would fit inside our own Sun," said Matthew Bailes of Swinburne University of Technology in Melbourne.
Lying 4,000 light years away, or around an eighth of the way toward the center of the Milky Way from the Earth, the planet is probably the remnant of a once-massive star that has lost its outer layers to the so-called pulsar star it orbits.
Pulsars are tiny, dead neutron stars that are only around 20 kilometers (12.4 miles) in diameter and spin hundreds of times a second, emitting beams of radiation.
In the case of pulsar J1719-1438, the beams regularly sweep the Earth and have been monitored by telescopes in Australia, Britain and Hawaii, allowing astronomers to detect modulations due to the gravitational pull of its unseen companion planet.
The measurements suggest the planet, which orbits its star every two hours and 10 minutes, has slightly more mass than Jupiter but is 20 times as dense, Bailes and colleagues reported in the journal Science on Thursday.
In addition to carbon, the new planet is also likely to contain oxygen, which may be more prevalent at the surface and is probably increasingly rare toward the carbon-rich center.
Its high density suggests the lighter elements of hydrogen and helium, which are the main constituents of gas giants like Jupiter, are not present.
Just what this weird diamond world is actually like close up, however, is a mystery.
"In terms of what it would look like, I don't know I could even speculate," said Ben Stappers of the University of Manchester. "I don't imagine that a picture of a very shiny object is what we're looking at here."
(Reporting by Ben Hirschler; Editing by Sophie Hares)


天文学家发现这个星球的钻石,Astronomers discover planet made of diamond - yauphilip - yauphilip 的博客

天文学家发现这个星球的钻石,Astronomers discover planet made of diamond - yauphilip - yauphilip 的博客

  评论这张
 
阅读(388)| 评论(0)
推荐 转载

历史上的今天

评论

<#--最新日志,群博日志--> <#--推荐日志--> <#--引用记录--> <#--博主推荐--> <#--随机阅读--> <#--首页推荐--> <#--历史上的今天--> <#--被推荐日志--> <#--上一篇,下一篇--> <#-- 热度 --> <#-- 网易新闻广告 --> <#--右边模块结构--> <#--评论模块结构--> <#--引用模块结构--> <#--博主发起的投票-->
 
 
 
 
 
 
 
 
 
 
 
 
 
 

页脚

网易公司版权所有 ©1997-2017