Strengthening Foundations for Magnetocentrifugal Outflows: Jet Rotation and Disk-Wind Connection in Star Formation

这项提议的目标是研究在恒星形成过程中产生喷流和外流的磁心机制。该提议将解决这个问题，首先，通过使用3-D磁流体动力学(MHD)模拟来量化年轻恒星对象(YSO)实际流出时预期的多普勒梯度，从而加强磁心流出理论的观测基础。提案的第二部分旨在通过使用新开发的基于Zeus的MHD代码来处理非理想的MHD效应，以加强这些YSO外流的理论基础。这个项目将通过最先进的数值模拟，促进我们对与年轻恒星物体相关的喷流和外流的理解，并将对喷流旋转做出有价值的预测，这将由阿塔卡马大毫米阵列(ALMA)进行测试。该项目概述了它将产生更广泛影响的5个领域，包括：喷气式飞机形成的动画电影，培训博士生，通过弗吉尼亚大学S天文台进行公众宣传，开发用于弗吉尼亚州农村地区科学教育的流动天文馆，以及发布开发的非理想的磁流体代码。

The goal of this proposal is to investigate the magnetocentrifugal mechanism for producing jets and outflows in the star formation process. The proposal will attack this problem, first, by strengthening the observational foundation of the magnetocentfiugal outflow theory by quantifying the Doppler gradient expected in realistic outflows from young stellar objects (YSOs) using 3-D magnetohydronamic (MHD) simulations. The second part of the proposal aims to strengthen the theoretical foundation of these YSO outflows by treating non-ideal MHD effects by using newly-developed Zeus-based MHD code. This project will advance our understanding of the jets and outflows associated with young stellar objects through state-of-the-art numerical simulations and will make valuable predictions regarding jet rotation that will be testable by the Atacama Large Millimeter Array (ALMA). The project outlines 5 areas in which it will make a broader impact including: animated movies of jet formation, training a PhD student, public outreach through the University of Virginia?s observatories, developing a mobile planetarium for use in science education in rural Virginia counties, and release of the non-ideal MHD code that is developed.