超新星遗迹CTB 87与分子云作用观测分析
首发时间:2017-05-17
摘要:超新星遗迹是超新星爆炸后遗留的残骸,超新星遗迹与周围分子云的物理作用与恒星形成、宇宙线起源等天体物理问题密切相关。本文使用紫金山天文台 青海观测站的毫米波射电望远镜的观测数据以及其他波段的观测结果,对超新星遗迹CTB 87的分子云环境进行了研究。我们在本文中给出了CTB~87与周围分子云存在相互作用的形态学和谱线展宽两方面的证据,并对CTB 87的距离以及成 协分子云的柱密度、质量等物理参数进行了讨论和估测。
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Observations and Analysis of the Interaction of Supernova Remnant CTB 87
Abstract:A supernova remnant is the structure resulting from the explosion of a supernova. The interaction between supernova remnants and molecular clouds is closely related to some important astrophysics problems, such as star formation and origins of cosmic rays. We focus on investigating molecular environments of supernova remnant CTB 87 by using data from the millimeter-wave telescope at Qinghai Station of Purple Mountain Observatory and other multi-wavelength observations. Evidences of the interaction between CTB 87 and surrounding molecular clouds in aspects of morphology and spectral broadening are presented. We also discuss and estimate the distance of CTB 87 and some physical parameters such as the column density and the mass of surrounding molecular clouds.
Keywords: Astrophysics Supernova Remnants Molecular Clouds Spectral lines of CO molecule
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