新观测的旋臂结构其实是环绕在恒星周围的气体尘埃盘,或称 拱星盘 ( circumstellar disk ),盘宽达2倍冥王星轨道,相当于224亿公里,极可能是因为有新行星正在 拱星盘 中形成,才会构成这样的旋臂结构。
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They found the star to be surrounded by a so-called circumstellar disk measuring some 130 astronomical units (12 billion miles) across.
他们发现围绕星体的碟状物质直径大约130天文单位(120亿英里)。
They "clearly show that at least some massive stars grow by accreting material from a circumstellar disk of gas and dust, just like our sun did roughly 4.5 billion years ago."
它们‘清楚地显示了至少一些巨型恒星由环绕的碟状气体和尘埃凝聚而成,就如我们的太阳在45亿年前一样。’
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