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首页> 外文期刊>The Astrophysical journal >THE NATURE OF THE MOLECULAR LINE WING EMISSION IN THE ROSETTE MOLECULAR COMPLEX
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THE NATURE OF THE MOLECULAR LINE WING EMISSION IN THE ROSETTE MOLECULAR COMPLEX

机译：结实分子复合物中分子线翼发射的性质

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摘要

We present ~(12)CO and ~(13)CO J = 3 → 2 and J = 2 → 1 observations of the Rosette Molecular Complex. The observations show that broad line wings, originally observed in CO J = 1 → 0, also exist in the higher J lines in high signal-to-noise ratio spectra toward individual positions and in positionally averaged spectra. We show that the wing emission can be explained by the superposition of individual high- and low-velocity clumps, some of which are spatially resolved at high angular resolution, and at least two embedded outflow sources. Our results call in question an earlier interpretation of this weak line wing emission as originating from a low-density, ubiquitous, molecular interclump gas. A multiline analysis implies that the wing emission originates in gas with densities comparable to the density of the bulk emission. We note that the physical conditions derived from this relatively simple single-component excitation analysis do not give a fully consistent picture of these clumps, leaving any conclusion on their dynamical state and evolution rather speculative.
机译：我们提出了〜（12）CO和〜（13）CO J = 3→2和J = 2→1的Rosette分子复合物的观察结果。观测结果表明，最初在CO J = 1→0中观察到的宽线翅膀也存在于较高的J线中，该高J线在朝向各个位置的高信噪比光谱中和在位置平均光谱中。我们表明，机翼排放可以通过单个的高，低速团块的叠加来解释，其中一些在高角度分辨率下在空间上得到解析，并且至少有两个嵌入式流出源。我们的研究结果使人们对这种弱线机翼排放物的早期解释是有问题的，该排放源于低密度，普遍存在的分子间聚集气体。多线分析表明，机翼排放物的气体密度与整体排放物的密度相当。我们注意到，从这种相对简单的单组分激发分析得出的物理条件并未给出这些团块的完全一致的图景，而对其动力学状态和演化的任何结论都颇为推测。

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