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银河星团的自转及膨胀
Authors
刘金沂
张明昌
戴文赛
谭德同
Publication date
1 March 1981
Publisher
Abstract
本文提出了一种研究星团自转的方法。根据它们自行和位置的资料,可以判别星团的成员、确定星团是否在自转或膨胀,或者既自转又澎胀,或者既不自转又不澎胀。若有视向速度的资料,还可以确定自转轴的方向。使用这个方法,我们计算了八星团一个星协,发现NGC 2548,1960 (M36)、2099(M37)、6795(M11)、毕星团和鬼星团都在自转着,MGC 1817和猎户星协既自转又膨胀,昂星团在膨胀着。本方法原则上也适用于星协和球状星团
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Institutional Repository of Institute for the History of Natural Sciences, Chinese Academy of Sciences(IHNS OpenIR,中国科学院自然科学史研究所机构知识库)
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Last time updated on 09/11/2016