蟹状星云的波霎风星云
来源：成大APOD蟹状星云的波霎风星云
影像提供: NASA / CXC / SAO / F. D. Seward, W. H. Tucker, R. A. Fesen
说明: 在这幅由钱卓拉观测卫星所拍摄的精彩影像里，中央的天体名为蟹状星云波霎，其大小和都市相当，是一颗每秒自转30次的高度磁化中子星。这幅长曝光影像，首次清楚地呈现这个波霎风星云错综复杂的边界。波霎是蟹状星云发出X射线辐射的能量源，所以它就像是一座宇宙级的发电机。这颗波霎加速带电粒子，造成从磁极高速射出的幽幽X射线喷流，以及从赤道区吹袭而出的强烈波霎风。当向外奔飞的带电粒子和强磁场作用，逐渐丧失能量后并停了下来，才造就了这些形状妙趣横生的边界。这颗质量比大阳大、密度和原子核相当的波霎，是大质量恒星崩溃塌缩后所留下的核心，而见证了这个恒星核心塌缩的超新星爆炸发生在公元1054年 (北宋至和元年)。依蟹状星云的六千光年距离来估算，这幅钱卓拉影像涵盖了九光年的区域。 画面中央是中子星么？ 当然，大名鼎鼎的蟹状星云脉冲星 那这张 细节可以啊再放大个10倍 都能观察表面了
顺便说 中子星的周围很壮观啊 这个蟹状星云 最早记录还是中国人吧？ 是的，中国是最早记录有关超新星爆炸的国家。 冰冷的火焰，陀螺仪 感觉像天体艺术画... ::070821_01.jpg::好漂...漂...漂...亮耶！ 阿西莫夫说，中子星上面(我想是表面)每一立方厘米的重量达14万吨，呵呵
都挤到原子核中去了...
弄个小勺子(看来要用掏耳勺)弄一丁点，可以当望远镜的配重了(有感于同好们的镜子重型装备)，呵呵... 本帖最后由 q5968661 于 2008-12-28 08:48 编辑
2001 June 2
http://apod.nasa.gov/apod/image/0106/crab_hst.jpg The Pulsar Powered Crab
Credit J. Hester and P. Scowen (ASU), NASA
Explanation: In the Summer of 1054 A.D. Chinese astronomers reported that a star in the constellation of Taurus suddenly became as bright as the full Moon. Fading slowly, it remained visible for over a year. It is now understood that a spectacular supernova explosion - the detonation of a massive star whose remains are now visible as the Crab Nebula- was responsible for the apparition. The core of the star collapsed to form a rotating neutron star or pulsar, one of the most exotic objects known to modern astronomers. Like a cosmic lighthouse, the rotating Crab pulsar generates beams of radio, visible, x-ray and gamma-ray energy which, as the name suggests, produce pulses as they sweep across our view. Using a stunning series of visible light images taken with the Hubble Space Telescope (HST) in 1995, astronomers have discovered spectacular pulsar powered motions within the Crab nebula. Highlights of this HST Crab "movie" show wisps of material moving away from the pulsar at half the speed of light, a scintillating halo, and an intense knot of emission dancing, sprite-like, above the pulsar's pole. Only 10 kilometers wide but more massive than the sun, the pulsar's energy drives the dynamics and emission of the nebula itself which is more than 10 light-years across.
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