论文标题
planck时代的星际尘埃的物理特性的观察性约束
Observational Constraints on the Physical Properties of Interstellar Dust in the Post-Planck Era
论文作者
论文摘要
我们提出了构成限制波长依赖性灭绝，发射和极化的天文观测的合成，从紫外线到弥漫性银河视线的微波波长的灭绝和极化。这些视线的代表性固相丰度也被得出。鉴于普朗克卫星对极化粉尘排放的敏感新观察，我们特别强调粉尘极化法，包括连续极化灭绝，碳质和硅酸盐光谱特征的极化，粉尘发射的波长依赖性极化分数以及光学极性巨大造成的巨大极性和质量量化的连接。共同构成了一组约束，应通过漫射星际介质中的灰尘模型再现。
We present a synthesis of the astronomical observations constraining the wavelength-dependent extinction, emission, and polarization from interstellar dust from UV to microwave wavelengths on diffuse Galactic sightlines. Representative solid phase abundances for those sightlines are also derived. Given the sensitive new observations of polarized dust emission provided by the Planck satellite, we place particular emphasis on dust polarimetry, including continuum polarized extinction, polarization in the carbonaceous and silicate spectroscopic features, the wavelength-dependent polarization fraction of the dust emission, and the connection between optical polarized extinction and far-infrared polarized emission. Together, these constitute a set of constraints that should be reproduced by models of dust in the diffuse interstellar medium.
