Tracking the Causes and Effects of Galactic Winds with Resolved Spectroscopy

由星星形成或活动星系核爆发驱动的极端风可以从星系中喷射气体，但较弱的星系风更普遍，它们对星系演化的长期影响可能是显着的。首席研究员（PI）Medling和她的团队将分析悉尼澳大利亚天文台多目标积分场光谱仪（SAMI）星系调查数据，以确定外流并量化风对其宿主星系的影响。PI将形成一个多层次的指导社区，在托莱多大学的学生，教师和工作人员之间建立联系，以帮助学生在他们的学位课程中脱颖而出。该团队将为Ritter天文馆开发一个公开的节目，“Galerkin的秘密生活”，这将是免费下载的英语和西班牙语。该团队将使用3D冲击诊断，可以跟踪流出比标准方法弱1-2个数量级。该小组将把联合收割机SAMI气体和恒星运动学与使用洛厄尔发现望远镜上的快速红外成像光谱仪进行的后续近红外观测和使用阿塔卡马大型毫米/亚毫米阵列进行的分子气体观测相结合。合并后的数据集将以类似的空间分辨率提供三种独立的冲击气体示踪剂：10，000 K的光学发射线，500 K的近红外分子氢线和10- 30 K的一氧化碳发射。这个大样本的空间分辨测量流出气体的相结构是至关重要的约束反馈处方在星系演化simulation.This奖项反映了NSF的法定使命，并已被认为是值得的支持，通过评估使用基金会的智力价值和更广泛的影响审查标准。

Extreme winds driven by bursts of star formation or active galactic nuclei can eject gas from a galaxy, but weaker galactic winds are more prevalent and their long-term impacts on galaxy evolution may be significant. Principal Investigator (PI) Medling and her team will analyze the Sydney Australian Astronomical Observatory Multi-object Integral-Field Spectrograph (SAMI) Galaxy Survey data to identify outflows and quantify the effects of winds on their host galaxies. The PI will form a multi-level mentoring community to build connections between students, faculty, and staff at the University of Toledo to help students excel in their degree program. The team will develop a public show for the Ritter Planetarium, “The Secret Lives of Galaxies”, which will be freely available for download in both English and Spanish.The team will use a 3D shock diagnostic that can trace outflows 1-2 orders of magnitude weaker than standard methods. The team will combine SAMI gas and stellar kinematics with follow-up near-infrared observations using the Rapid Infrared Imager Spectrometer on the Lowell Discovery Telescope and molecular gas observations using the Atacama Large Millimeter/submillimeter Array. The combined datasets will provide three independent tracers of shocked gas at similar spatial resolutions: optical emission lines at 10,000K, near-infrared molecular hydrogen lines at 500K, and carbon monoxide emission at 10-30K. This large sample of spatially resolved measurements of the phase structure of outflowing gas is crucial for constraining feedback prescriptions in galaxy evolution simulations.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.