论文标题
高速云配合物M的距离
The Distance to High-Velocity Cloud Complex M
论文作者
论文摘要
21 cm HI4PI调查数据用于研究与高速云复合物相关的异常氢气。这些高敏，高分辨率，高动力学数据表明，许多个体特征，包括MI，MIIA和MIIB，包括长的，弓形纤维的组成部分，从弓形纤维的成分延伸至（l，b）=（l，b）=（l，b）=（l，b）=（l，b）=（l，B） （196°，55°）。高斯分析的结果以及相关的高能量发射的观察结果令人信服的情况是，MI云和拱形细丝在物理上相互作用。如果是这种情况，我们可以使用Schmelz＆Verschuur（2022）报告的MI，150 PC的距离，以将距离设置为复杂M。然后，复杂M的估计质量约为120个太阳能质量，使用观察到的视线速度（-85 km/s，IS 85 km/s，IS 8.4 x 10^48 ERG）所隐含的能量。超过4πsteradians的整合，球形对称爆炸的总能量估计为1.9 x 10^50 ERG，远远超出了典型的超新星的能量预算。
21-cm HI4PI survey data are used to study the anomalous-velocity hydrogen gas associated with high-velocity cloud Complex M. These high-sensitivity, high-resolution, high-dynamic-range data show that many of the individual features, including MI, MIIa, and MIIb, are components of a long, arched filament that extends from about (l, b) = (105°, 53°) to (l, b) = (196°, 55°). Maps at different velocities, results from Gaussian analysis, and observations of associated high-energy emission make a compelling case that the MI cloud and the arched filament are physically interacting. If this is the case, we can use the distance to MI, 150 pc as reported by Schmelz & Verschuur (2022), to set the distance to Complex M. The estimated mass of Complex M is then about 120 solar masses and the energy implied using the observed line-of-sight velocity, -85 km/s, is 8.4 x 10^48 ergs. Integrating over 4π steradians, the total energy for a spherically symmetrical explosion is estimated to be 1.9 x 10^50 ergs, well within the energy budget of a typical supernova.
