Nothing rages against the dying of the light harder than a star. Their death throes are wild and violent as the star is wracked with colossal quakes, throwing vast amounts of stellar material out into the surrounding space. 没有一种光的消逝比恒星更剧烈。恒星的死亡像狂风骤雨般剧烈,因为恒星经受剧烈震动,将数量庞大的星体物质抛向周围的空间。 studying the gas and dust thrown off in such events can help us understand how these stars die… and now Hubble has studied in greater detail than ever before two of the dustiest, gassiest star deaths in the galaxy. 研究这种情况下被抛出的气体和尘埃可以帮助我们理解这些恒星是如何死亡的。现在哈勃比以往更详细地研究了星系中两颗尘埃最多、气体最多的恒星的死亡。 They're two planetary nebulae (so named because initially, these objects were first described as planet-like in the 18th century) called NGC 6303, or the Butterfly Nebula, and NGC 7027. And Hubble has used the full wavelength range of its Wide Field 3 camera - from near ultraviolet to near-infrared - to study the turbulent processes within them. 这两个行星状星云(取这个名字是因为最初在18世纪时说这些物体外观类似行星)名为NGC 6303,也叫蝴蝶星云,和NGC 7027。哈勃利用第三代广域照相机的全波长范围,即从近紫外到近红外的范围,研究星云内部的湍流过程。 |