蟹状星云的旋转脉冲星
(原标题: The Spinning Pulsar of the Crab Nebula)
2022-08-21
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蟹状星云的核心有一颗城市大小的磁化中子星，每秒旋转30次。它被称为蟹状脉冲星，是星云核心气体漩涡中心的亮点。这幅壮观的照片直径约12光年，描绘了蟹状星云中心附近发光的气体、空洞和旋转的灯丝。这张特色图片将哈勃太空望远镜发出的可见光（紫色）、钱德拉x射线天文台发出的x射线（蓝色）和斯皮策太空望远镜发出的红外光（红色）结合在一起。蟹状星云脉冲星就像一个宇宙发电机，为星云的发射提供动力，驱动冲击波穿过周围的物质，加速螺旋电子。这颗旋转脉冲星的质量比太阳还大，密度相当于原子核，它是一颗大质量恒星爆炸后坍缩的核心。蟹状星云的外部部分是恒星组成气体的膨胀残余物。超新星爆炸是在1054年在地球上观测到的。探索你的宇宙：随机APOD生成器
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At the core of the Crab Nebula lies a city-sized, magnetized neutron star spinning 30 times a second. Known as the Crab Pulsar, it is the bright spot in the center of the gaseous swirl at the nebula's core. About twelve light-years across, the spectacular picture frames the glowing gas, cavities and swirling filaments near the Crab Nebula's center. The featured picture combines visible light from the Hubble Space Telescope in purple, X-ray light from the Chandra X-ray Observatory in blue, and infrared light from the Spitzer Space Telescope in red. Like a cosmic dynamo the Crab pulsar powers the emission from the nebula, driving a shock wave through surrounding material and accelerating the spiraling electrons. With more mass than the Sun and the density of an atomic nucleus,the spinning pulsar is the collapsed core of a massive star that exploded. The outer parts of the Crab Nebula are the expanding remnants of the star's component gasses. The supernova explosion was witnessed on planet Earth in the year 1054. Explore Your Universe: Random APOD Generator