M82星系风中的热分子氢
Warm Molecular Hydrogen in the Galactic Wind of M82
摘要：
本文报道了在M82银道面上下延伸超过~3 kpc的面外暖H_2结和细丝的复合体的探测结果，这与该系统中著名的银河风大致一致。这些数据与其他波长的已发表结果的比较提供了定量的拓扑结构，激发，加热和稳定性对破坏的风夹带分子ISM在这个原型的银河风的限制。深H_2 2.12 μ m观测为研究星系风中难以捉摸但潜在重要的分子成分提供了一种很有前途的新方法。
英文摘要：
We report the detection of a complex of extraplanar warm H_2 knots and filaments extending more than ~3 kpc above and below the galactic plane of M82, roughly coincident with the well-known galactic wind in this system. Comparisons of these data with published results at other wavelengths provide quantitative constraints on the topology, excitation, heating, and stability against disruption of the wind-entrained molecular ISM in this prototypical galactic wind. Deep H_2 2.12 um observations such as these represent a promising new method to study the elusive but potentially important molecular component of galactic winds.
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