论文标题
解决附近的尘埃云
Resolving nearby dust clouds
论文作者
论文摘要
目的：在3D中映射星际介质，为其内部工作提供了大量的见解。银河系是唯一可以原则上可以实现详细的3D映射的星系。在本文中，我们重建本地超级泡的尘埃密度。 方法：来自Gaia，2 Mass，Panstarrs和Allwise等调查的合并数据提供了必要的信息，以在周围的周围制作星际介质的详细地图。为此，我们使用变异推理和高斯过程来对灰尘灭绝密度进行建模，从而利用其内在相关性。 结果：我们重建了一个高度分辨的灰尘图，显示了最接近400％的距离，分辨率为1pc。 结论：我们的重建提供了对星际介质结构的见解。我们计算光谱指数的汇总统计数据和对数尘埃消光密度的1分函数，这可能会限制实现类似分辨率的星际介质的模拟。
Aims: Mapping the interstellar medium in 3D provides a wealth of insights into its inner working. The Milky Way is the only galaxy for which detailed 3D mapping can be achieved in principle. In this paper, we reconstruct the dust density in and around the local super-bubble. Methods: The combined data from surveys such as Gaia, 2MASS, PANSTARRS, and ALLWISE provide the necessary information to make detailed maps of the interstellar medium in our surrounding. To this end, we used variational inference and Gaussian processes to model the dust extinction density, exploiting its intrinsic correlations. Results: We reconstructed a highly resolved dust map, showing the nearest dust clouds at a distance of up to 400pc with a resolution of 1pc. Conclusions: Our reconstruction provides insights into the structure of the interstellar medium. We compute summary statistics of the spectral index and the 1-point function of the logarithmic dust extinction density, which may constrain simulations of the interstellar medium that achieve a similar resolution.
