中文翻譯:
在宇宙深處，有一個叫做Crab Nebula的地方，裡面有一顆像城市一樣大的星星，這顆星星叫做Crab Pulsar。這顆星星每秒鐘轉動30次，它發出亮亮的光，像一個閃亮的寶石，位於這片神奇氣體的中心。這幅圖畫展示了這些發光的氣體、洞穴和旋轉的細絲，讓人感到驚嘆。這張圖片的顏色很特別，紫色是來自Hubble太空望遠鏡，藍色是來自Chandra X-ray Observatory，而紅色則是Spitzer太空望遠鏡拍攝的。在這片星雲中，Crab Pulsar就像一個宇宙的發電機，讓周圍的氣體震動並加速飛舞的小電子。這顆快速旋轉的脈衝星比太陽的質量還要大，密度就像一個原子核。它是以前一顆巨大的星星爆炸後留下的核心，外圍的Crab Nebula是這顆星星的殘骸和氣體。其實，在公元1054年，地球上的人們就看到過這次超新星的爆炸！
原文:
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 gases. The supernova explosion was witnessed on planet Earth in the year 1054. Sky Surprise: What picture did APOD feature on your birthday? (after 1995)
來源:NASA每日圖片
