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渐近巨星支(Asymptotic Giant Branch, AGB)恒星的星周包层(Circumstellar Envelope,CSE)中含有大量气体分子(已探测到105个),约占星际空间发现的所有分子(超300个)的三分之一。研究星周包层中分子的物理以及化学特征对研究恒星演化具有重要意义。气体和尘埃是星周包层的重要组成部分,二碳化硅(SiC2)分子是富碳AGB星周尘埃颗粒的主要成分之一。Si...
OU-led team discovers rare,newborn tri-star system using ALMA
OU-led team newborn tri-star system ALMA
2016/11/4
A rare triple-star system surrounded by a disk with a spiral structure has been discovered by a University of Oklahoma-led research team. Recent observations from the Atacama Large Millimeter/submilli...