The role of magnetic fields during the birth and death of stars

研究恒星的诞生和死亡具有根本的重要性。恒星和行星系统是在气体云坍缩过程中通过复杂的物理过程形成的。在恒星生命结束时，流出物是重元素的主要来源，而重元素对于恒星、行星和生命的形成至关重要。埃米·诺特的主要应用之一：恒星演化过程中的磁性，关于恒星形成和最终演化的问题仍然与磁场的作用有关。只有在不同空间尺度上的极化观测才能测量出这些恒星演化阶段的磁场强度和结构。由于处于这些演化阶段的恒星被尘埃包层高度遮蔽，因此最好通过观察亚毫米（0.3-1毫米）和无线电（1-20厘米）波长的分子和尘埃来探测它们。这个被提议的研究小组将使用最先进的亚毫米和无线电仪器来检查磁场在恒星形成过程中的作用和起源，以及在演化恒星的流出物中。这些观测将揭示磁场在调节原恒星盘和流出物的形成，以及在驱动和塑造演化恒星的质量损失方面的重要性。

The study of the birth and death of stars is of fundamental importance. Stars and planetary systems are formed through complex physical processes during the collapse of gas clouds. At the end of a stars life, outflows are the main source of heavy elements that are essential for the formation of stars, planets and life. One of the main Emmy Noether application: Magnetism during stellar evolution questions that remain about the formation and final evolution of stars concerns the role of magnetic fields. Only polarization observations at different spatial scales are able to measure the strength and structure of magnetic fields during these stages of stellar evolution. Because stars in these evolutionary phases are highly obscured by dusty envelopes, they are best probed through observations of molecules and dust at submillimeter (0.3-1 mm) and radio (1-20 cm) wavelengths. The proposed research group will use state of the art submillimeter and radio instruments to examine the role and origin of magnetic fields during star-formation and in the outflows from evolved stars. These observations will reveal the importance of magnetism in regulating the creation of protostellar disks and outflows, as well as in driving and shaping the mass-loss of evolved stars.