Turbulent structures in the magnetic interstellar medium

星际介质(ISM)是充满我们银河系中恒星之间空间的物质。ISM包括电离气体和各种分子，以及带有磁场的尘埃。研究人员将了解磁场如何相互作用，在星际气体和尘埃中形成新的结构。他们将更好地理解星系中的湍流和磁力。这个项目很重要，因为我们银河系的磁性结构遮挡了更远的天体。通过更好地了解我们的星系，他们希望探测到微弱的信号，为我们的宇宙如何开始提供线索。调查人员将为以前被监禁的本科生试行一项新的暑期研究体验。他们希望让这些学生能够在科学和技术领域开始职业生涯。研究生将开发用于科学和公共宣传讲座的数据可视化工具。该项目将把阿雷西博天文台的中性氢档案数据与阿塔卡马宇宙学望远镜新的尘埃极化图结合起来，以量化冷热中性介质之间磁场的相干性，并在小角度尺度上表征尘埃极化的空间结构。他们的工作还将使用档案塞曼分裂测量来重新确定扩散星际介质中的磁场和磁流体动力学湍流的性质。在这项工作中产生的代码和数据产品将公开可用。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

The Interstellar Medium (ISM) is the stuff that fills the space between the stars in our Galaxy. The ISM includes ionized gas and a variety of molecules, as well as dust threaded with magnetic fields. The investigators will learn how magnetic fields interact to form new structures in interstellar gas and dust. They will better understand turbulence and magnetism in galaxies. This project is important because the magnetic structures in our galaxy obscures objects much farther away. By better understanding our galaxy, they hope to detect faint signals that provide clues on how our universe began. The investigators will pilot a new summer research experience for formerly incarcerated undergraduate students. They hope to enable these students to begin careers in science and technology. Graduate students will develop data visualization tools used in scientific and public outreach talks. This project will combine archival Arecibo Observatory neutral hydrogen data with new dust polarization maps from the Atacama Cosmology Telescope to quantify the coherence of the magnetic field between the warm and cold neutral media, and to characterize the spatial structure of dust polarization on small angular scales. Their work will also use archival Zeeman splitting measurements to make a new determination of properties of the magnetic field and of magnetohydrodynamic turbulence in the diffuse interstellar medium. The code and data products produced in this work will be made publicly available.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.