论文标题
尘埃纹理对准和旋转区域的理论和观察性研究的最新进展
Recent progress in theory and observational study of dust grain alignment and rotational disruption in star-forming regions
论文作者
论文摘要
对尘埃天体物理学的现代理解表明，辐射粉尘相互作用引起的辐射扭矩（大鼠）可以引起两种基本影响，包括谷物对准和旋转破坏。在这里，我们回顾了使用对星形成区域（SFR）观察到的尘埃极化对这些影响的理论发展和观察性测试的最新进展。我们首先回顾了大鼠对齐和大鼠破坏的基本理论，这些理论分别称为RAT-A和RAT-D效应。然后，我们简要描述了我们使用的数值方法，用于通过考虑RAT-A和RAT-D的占地热粉尘发射以及观测粉尘极化的理论预测。接下来，我们回顾了使用热粉尘极化对SFR的观察性努力，以搜索RAT-A和RAT-D效应的观察性证据。最后，我们讨论从观察到这些SFR的尘埃极化推断出的磁场以及大鼠范式对不同天体物理条件的含义，包括原始环境，灰尘的演化和时间域天体物理学。
Modern understanding of dust astrophysics reveals that RAdiative Torques (RATs) arising from the radiation-dust interaction can induce two fundamental effects, including grain alignment and rotational disruption. Here we review the recent progress in the theoretical development and observational testing of these effects using dust polarization observed toward star-forming regions (SFRs). We first review the basic theory of the RAT alignment and RAT disruption, which are referred to as RAT-A and RAT-D effects, respectively. We then briefly describe the numerical method we use to model polarized thermal dust emission by accounting for both RAT-A and RAT-D and theoretical predictions of dust polarization for observations. Next, we review our observational efforts to search for observational evidence of the RAT-A and RAT-D effects using thermal dust polarization toward SFRs. Finally, we discuss magnetic fields inferred from dust polarization observed toward these SFRs and implications of the RAT paradigm for different astrophysical conditions, including protostellar environments, dust evolution, and time-domain astrophysics.
