异常物体
日神，有消息了吗？
日神在梦游中....{:1_223:}{:1_231:}
刚睡醒,什么情况了?
以下是从nasa的网站上考的
好像就是发现了个黑洞而已
RELEASE : 10-299
NASA'S Chandra Finds Youngest Nearby Black Hole
WASHINGTON -- Astronomers using NASA's Chandra X-ray Observatory have found evidence of the youngest black hole known to exist in our cosmic neighborhood. The 30-year-old black hole provides a unique opportunity to watch this type of object develop from infancy.
The black hole could help scientists better understand how massive stars explode, which ones leave behind black holes or neutron stars, and the number of black holes in our galaxy and others.
The 30-year-old object is a remnant of SN 1979C, a supernova in the galaxy M100 approximately 50 million light years from Earth. Data from Chandra, NASA's Swift satellite, the European Space Agency's XMM-Newton and the German ROSAT observatory revealed a bright source of X-rays that has remained steady during observation from 1995 to 2007. This suggests the object is a black hole being fed either by material falling into it from the supernova or a binary companion.
"If our interpretation is correct, this is the nearest example where the birth of a black hole has been observed," said Daniel Patnaude of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass. who led the study.
The scientists think SN 1979C, first discovered by an amateur astronomer in 1979, formed when a star about 20 times more massive than the sun collapsed. Many new black holes in the distant universe previously have been detected in the form of gamma-ray bursts (GRBs).
However, SN 1979C is different because it is much closer and belongs to a class of supernovas unlikely to be associated with a GRB. Theory predicts most black holes in the universe should form when the core of a star collapses and a GRB is not produced.
"This may be the first time the common way of making a black hole has been observed," said co-author Abraham Loeb, also of the Harvard-Smithsonian Center for Astrophysics. "However, it is very difficult to detect this type of black hole birth because decades of X-ray observations are needed to make the case."
The idea of a black hole with an observed age of only about 30 years is consistent with recent theoretical work. In 2005, a theory was presented that the bright optical light of this supernova was powered by a jet from a black hole that was unable to penetrate the hydrogen envelope of the star to form a GRB. The results seen in the observations of SN 1979C fit this theory very well.
Although the evidence points to a newly formed black hole in SN 1979C, another intriguing possibility is that a young, rapidly spinning neutron star with a powerful wind of high energy particles could be responsible for the X-ray emission. This would make the object in SN 1979C the youngest and brightest example of such a "pulsar wind nebula" and the youngest known neutron star. The Crab pulsar, the best-known example of a bright pulsar wind nebula, is about 950 years old.
"It's very rewarding to see how the commitment of some of the most advanced telescopes in space, like Chandra, can help complete the story," said Jon Morse, head of the Astrophysics Division at NASA's Science Mission Directorate.
The results will appear in the New Astronomy journal in a paper by Patnaude, Loeb, and Christine Jones of the Harvard-Smithsonian Center for Astrophysics. NASA's Marshall Space Flight Center in Huntsville, Ala., manages the Chandra program for the agency's Science Mission Directorate in Washington. The Smithsonian Astrophysical Observatory controls Chandra's science and flight operations from Cambridge.
http://it.sohu.com/20101116/n277650204.shtml
美国NASA发现年轻黑洞 年龄只有30岁
来源：搜狐IT 2010年11月16日02:31
【搜狐IT消息】北京时间11月16日消息，据外电报道，天文学家利用钱德拉X线望远镜发现一个年轻的黑洞，它位于宇宙邻近。这个黑洞只有30岁，因此给科学家提供一个观察黑洞从婴儿期如何向前发展变化的良机。
该黑洞能帮助科学家更好的理解大量恒星如何爆炸而成，在黑洞与中子星之后又留下了什么，以及我们的银河及其它地方有多少黑洞。
这个30岁的黑洞是SN 1979C的残余。SN 1979C是一颗超新星，它位于银河M100位置，大约离地球5000万光年。根据钱德拉、NASA雨燕卫星(Swift satellite)、欧洲太空总署XMM—牛顿卫星以及德国伦琴卫星（ROSAT）提供的X线资料显示，黑洞在1995-2007年观察期间保持稳定，它可能正在吞食由超新星和伴星提供的物质。
马萨诸塞州剑桥市哈佛·史密森天体物理中心丹尼尔·帕特兰德（Daniel Patnaude）说：“如果解释正确，这将是观察到的黑洞中距离最近的一个例子。”
1979年，业余爱好者发现了SN 1979C，它由一颗20倍于太阳体积的星星坍缩而成。在遥远的宇宙已经发现了许多黑洞，它们以伽玛射线暴（GRBs）的形式被探测到。SN 1979C有所不同，它更近，它属于超新星，看起来与伽玛射线暴不同。理论认为，大多的黑洞从恒星核心坍缩时形成，且没有GRB产生。
马萨诸塞州剑桥市哈佛·史密森天体物理中心罗布（Abraham Loeb）认为：“这可能是第一次观测到黑洞以普通的方式形成。尽管如此，还是很难探测到这类黑洞的诞生，因为X线观察需要数十年。”
黑洞的可观察年龄只要30年，这也与最近的理论一致。2005年，有理论认为这颗超新星发出的明亮光是由黑洞喷射出的，黑洞无法穿过氢气层形成GRB。对SN 1979C的观察结果与理论相吻合。
虽然新的证据显示SN 1979C正在形成新的黑洞，但还有另外一种可能：一个年轻、快速的旋转中子星，它拥有强大的高能量风，从而形成了X线束。如果后一推测属实，那么SN 1979C中的观察目标将是最年轻、最明亮的“脉冲星风星云”标本，它也将是已知的最年轻的中子星。蟹状星云脉冲星是脉冲星风星云中最为著名的一个，但它已经950岁了。（Spinning)
(责任编辑：胡涛)
没什么震撼的消息！
今天睡不着，七点来上网
{:1_239:}。zzzzzzzzzzzzz
肯定是有的宇宙那么大
嗨！我还以为什么重大发现呢！害我没睡好觉！
起床了。没什么消息
..........
应该是假新闻
jsycjhsh 发表于 2010-11-15 22:20 http://www.shoudian.org/images/common/back.gif
应该是外行人的误读+炒作
做梦的都醒了没？
来看看有什么发现