[转帖]美天文学家宣称黑洞可能不存在

邱雷

美天文学家发现某类星体中央有磁场<br>黑洞根本不存在？<br><br>　　多年来，神秘的黑洞理论令众多顶级科学家心驰神往，为如何描述它而费尽心力。然而，一批美国科学家日前却提出全新的看法，认为所谓的黑洞根本是子虚乌有。<br>　　据《卫报》7月29日报道，提出该理论的是科学家席尔德领导的哈佛—史密森天体物理研究中心的研究小组。他们观察到在距离地球90亿光年以外的宇宙间有一个类星体，它有很大的红移（光源远离观测者时，接受到的光波频率比其固有频率低，即向红端偏移）并放射出大量的蓝光，而且经常还有无线电波发出。此前科学家一直相信，类星体中央便是黑洞。<br>　　研究小组动用14部天文望远镜，对这个类星体进行前所未有的全面观察，通过分析其光谱，深入探测了其内部结构。他们发现，类星体的中央周围有一圈碟形的物质形成的洞，宽度相当于地球与太阳距离的4000倍。他们相信，那个洞是由一个强力磁场喷发出大量物质形成的，其中有许多等离子形成的奇特圆球体。<br>　　黑洞理论最早于1784年由一名英国地质学家提出，后经爱因斯坦加以确认。英国著名天体物理学家霍金也在不久前进一步确定黑洞的存在。根据黑洞理论，这个可以吞噬一切的无底黑洞是没有磁场的。科研小组据此提出，类星体中央带有磁力的等离子球体的存在就排除了黑洞的可能。该研究小组的科学家莱特表示：“我相信，这是第一个能证明整个黑洞理论错误的证据。”<br><br>康娟<br><br>摘自《解放日报》电子版2006年7月30日<br>（http://www.jfdaily.com.cn/gb/node2/node17/node167/node91219/node91223/userobject1ai1418234.html）<br><br>

邱雷

《卫报》7月29日报道原文：<br><br>American astronomers claim that black holes may not exist<br><br>Ian Sample, science correspondent<br>Saturday July 29, 2006<br>The Guardian<br><br>They swallow everything that comes their way and exercise the world\'s finest minds, but the portrayal of black holes as awe-inspiring celestial menaces may be woefully inaccurate, a team of scientists claim. Indeed, they might not exist at all.<br><br>According to the researchers, the traditional astronomers\' view of a universe liberally sprinkled with invisible, all-consuming black holes should be replaced with an alternative that sees strange, magnetic balls of plasma floating in their place.<br><br>If the finding is verified - an event some scientists do not see on the horizon - it would dramatically overturn a theory that emerged from an English geologist\'s calculations in 1784, was verified by Einstein and confined by four laws drawn up by Professor Stephen Hawking.<br><br>The scientists, lead by Rudy Schild at the Harvard-Smithsonian Centre for Astrophysics, spotted what they claim to be the death knell for black hole theory while observing a quasar, lurking nine billion light years from Earth.<br><br>Quasars are believed to have black holes at their centres, but to test this assumption, the scientists set up 14 telescopes to keep an unprecedented watch on the object. By analysing the gentle flickering of the quasar, the team were able to probe the structure of its interior.<br><br>They discovered a gaping hole in a disc of material surrounding the centre of the quasar, as wide as 4,000 times the distance from the Earth to the sun. The hole, they believe, could only be caused by a vast ejection of material propelled by a strong magnetic field.<br><br>Because black holes do not have magnetic fields, Dr Schild\'s team suggest in The Astronomical Journal, the quasar must be powered by a dense ball of plasma called a MECO (magnetospheric eternally collapsing object). But according to the astronomers\' theories the MECOs\' existence precludes the possibility of black holes.<br><br>"I believe this is the first evidence that the whole black hole paradigm is incorrect," said Darryl Leiter, a scientist on the team told the New Scientist.<br><br>According to Gerry Gilmore at Cambridge University\'s Institute for Astronomy, the theory has yet to convince most scientists. He pointed to last year\'s groundbreaking experiments that gave the first direct observation of a black hole at the centre of our galaxy, the Milky Way. "I\'d have to say it\'s a minority view. It\'s almost certainly wrong," said Prof Gilmore. "Before we had observations of a black hole, there was a legitimate debate over whether black holes existed or not, but now it\'s hard to think how it could be anything else."<br><br><br>摘自《卫报》网络版（http://www.guardian.co.uk/science/story/0,,1832896,00.html）<br>

xiezi99

<p>没有吗?据说有个非公开的计划准备在北美制造黑洞,这个计划的选址最后没有得到国家科学委员会的批准,因为大臣们担心如果真的可以制造黑洞,即使这个黑洞只是原子的尺径,也不会有任何东西能够逃脱.</p><p>据说为了使这个计划得以通过,投资人希望使国家科学委员会相信黑洞根本不存在.很显然,在黑洞存在的问题上,最希望发言的并不是理论物理学家.</p>

shep

那么恒星坍塌之后,到底变成了啥?

邱雷

变成一些致密星体，白矮星、中子星、黑洞之类。

死弱弱

对嘛，是06年的撒

黄色幽默

<div class="msgheader">QUOTE:</div><div class="msgborder"><b>以下是引用<i>xiezi99</i>在2007-7-3 22:52:04的发言：</b><br/><p>没有吗?据说有个非公开的计划准备在北美制造黑洞,这个计划的选址最后没有得到国家科学委员会的批准,因为大臣们担心如果真的可以制造黑洞,即使这个黑洞只是原子的尺径,也不会有任何东西能够逃脱.</p><p></p></div><p>看得我好兴奋。</p>

毛大头

<p>有一个问题一直困扰着我</p><p>一直搞不明白宇宙之外到底是什么？</p><p>有没有另外一个宇宙存在的可能</p><p>或者，所谓的宇宙大爆炸，只是一个小孩在吹气球</p><p>无法想像</p>

目目连

星河战队里面说，宇宙是一个外星人手里的玻璃球。。

将计就计

<p>天文学</p><p>很大程度上</p><p>是一门牛皮学</p>