ALMA对G333.0162+00.7615环境的观测

T. Komesh, Aruzhan Omar, G. Garay, Zhandos Assembay, N. Alimgazinova, Nurman Zhumabay, Meiramgul Kyzgarina
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引用次数: 0

摘要

摘要我们对G333.0162+00.7615的环境进行了ALMA观测,该天体在以往的研究中被认为是高质量年轻恒星天体(HMYSO)的候选者。我们的尘埃连续体、分子谱线发射和射电重组谱线发射观测表明,这个源不是与超致密(HC) HII区相关的HMYSO。相反,我们发现了两个新的热核,它们与高质量恒星形成区域的最早阶段有关。根据CH3CN阶梯的J=14→13旋转跃迁,我们估计了这些岩心的旋转温度约为270 K。力矩图显示的速度梯度证实了这些岩心在旋转。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
ALMA observations of the environments of G333.0162+00.7615
Abstract We have carried out ALMA observations toward the environments of G333.0162+00.7615 which was considered as a candidate of high-mass young stellar object (HMYSO) in previous studies. Our dust continuum, molecular line emission and radio recombination line emission observations show that this source is not HMYSO associated with hypercompact (HC) HII regions. Instead, we discovered two new hot cores associate with earliest stages of high mass star formation region. We estimated the rotational temperatures of these cores about 270 K from J=14→13 rotational transition of CH3CN ladder. The moment maps show velocity gradients confirming that this cores are rotating.
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