CAREER: Chemical Enrichment: A Component of Massive Star Feedback Processes

提案ID: ast -0239321机构：Lowell ObservatoryPI: Oey， sally博士。Sally Oey将利用她在亚利桑那州弗拉格斯塔夫的洛厄尔天文台获得的职业生涯奖，对大质量恒星的反馈过程——机械的、辐射的和化学的——进行建模。在星系演化、星际介质、星系间介质（IGM）和宇宙演化模型中，机械反馈和星系外流是一个关键的未知数。辐射反馈控制着恒星形成的重要星云诊断和星系电离光子的逃逸率，这是理解宇宙电离的核心。化学反馈控制着星系演化、IGM的富集和宇宙化学演化的基本化学特征。迄今为止，她已经成功地将机械反馈和辐射反馈的参数化结合在了观测和理论工作的基础上，这个奖项将使她能够完全包括化学反馈。这个研究项目还将提供一个广泛的科学基础，Oey博士将从中为洛厄尔天文台的公共推广项目汲取材料。这些材料将很好地补充他们长期以来在太阳系和低质量恒星领域的主导科学优势。Oey博士将扩展和更新外展计划，包括银河和星系外科学，重点是LOPARC，洛厄尔的16英寸望远镜，用于公共科学活动，以及他们的电子通讯LEARN。除了这些公共宣传工作，她将继续与K-12和高等教育的学生一起工作。

Proposal ID: AST-0239321Institution: Lowell ObservatoryPI: Oey, SallyDr. Sally Oey will use her CAREER award at Lowell Observatory in Flagstaff, Arizona, to model the feedback processes - mechanical, radiative, and chemical - from massive stars. Mechanical feedback and galactic outflows are a critical unknown in models of galaxy evolution, the interstellar medium, the intergalactic medium (IGM), and cosmic evolution. Radiative feedback controls vital nebular diagnostics of star-formation and the escape fraction of ionizing photons from galaxies, central to understanding the ionization of the universe. Chemical feedback controls the fundamental chemical signatures of galaxy evolution, enrichment of the IGM, and cosmic chemical evolution. Building on her combination of observational and theoretical work that has so far successfully integrated the parameterization of mechanical and radiative feedback, this award will allow her to fully include chemical feedback as well. This research program will also supply a broad science base from which Dr. Oey will draw material for Lowell Observatory's public outreach programs. This material will nicely complement their dominant science strengths, which have long been in the areas of solar system and low-mass stars. Dr. Oey will expand and update the outreach programs to include Galactic and extragalactic science, with an emphasis on LOPARC, Lowell's 16-in telescope for public science activities, and LEARN, their electronic newsletter. In addition to these public outreach efforts, she will continue working with students in K-12 and higher education.