MPS-Ascend: Disentangling the Complexities of Galaxy Evolution Using Genetically Modified Galaxies

MPS-Ascend：利用基因改造星系解开星系演化的复杂性

• 批准号: 2212959
• 负责人: Natalie Sanchez
• 金额: $ 30万
• 依托单位: Sanchez, Natalie Nicole
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2212959&HistoricalAwards=false
• 关键词: MPS; Ascend; Disentangling; Complexities; Galaxy

This award is funded in whole or in part under the American Rescue Plan Act of 2021 (Public Law 117-2). Natalie N. Sanchez is awarded a NSF Mathematical and Physical Sciences Ascending Postdoctoral Research Fellowship (NSF MPS-Ascend) to conduct a program of research and activities related to broaden participation by groups underrepresented in STEM. This fellowship to Dr. Sanchez supports her research project entitled "MPS-Ascend: Disentangling the Complexities of Galaxy Evolution Using Genetically Modified Galaxies", under the mentorship of a sponsoring scientist. The host institution for the fellowship is Carnegie Observatories, and the sponsoring scientist is Dr. Andrew Benson.Decades of observations have shown that large scale gas outflows driven by energetic processes are critical in galaxy evolution. Such flows inhibit and regulate star formation. Stellar feedback from supernova and stellar winds is an important source of energy for driving outflows as are winds from Super Massive Black Holes (SMBH). Amidst the complicated backdrop of galaxy formation–such as ongoing major and minor mergers, inflowing gas filaments, cooling gas flows, and feedback processes–unraveling the cause and effect of physical processes proves a challenge. The PI will use numerical simulations to create "Genetically Modified" (GM) galaxies: simulations based on nearly identical initial conditions with slightly changed galaxy accretion histories. The controlled experiments of the GM technique isolate the impact of different assembly histories, SMBH feedback implementation, and star formation histories to disentangle the complicated dynamical processes that drive galaxy formation.Working with Community Colleges in Pasadena and the Cal Bridge Program, the PI will create and run a two-week, intensive coding summer school each year that includes teaching python coding skills, practical research experience with multiple forms of astrophysical data, and lectures on STEM-focused careers. The goal of this program is to increase the support for and retention of historically marginalized students in STEM-fields.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.

该奖项全部或部分根据2021年美国救援计划法案（公法117-2）资助。 娜塔莉·N桑切斯被授予NSF数学和物理科学上升博士后研究奖学金（NSF MPS-Ascend），以开展与扩大STEM中代表性不足的群体参与有关的研究和活动计划。Sanchez博士的奖学金支持她在赞助科学家的指导下进行的题为“MPS-Ascend：使用转基因Galerkin解开星系演化的复杂性”的研究项目。该奖学金的主办机构是卡内基天文台，赞助科学家是Andrew Benson博士。数十年的观测表明，由高能过程驱动的大规模气体外流在星系演化中至关重要。这种流动抑制和调节星星的形成。来自超新星和恒星风的恒星反馈是驱动外流的重要能量来源，就像来自超大质量黑洞（SMBH）的风一样。在星系形成的复杂背景中，如正在进行的大小合并，流入的气体细丝，冷却的气体流动和反馈过程，揭示物理过程的因果关系是一个挑战。PI将使用数值模拟来创建“转基因”（GM）星系：模拟基于几乎相同的初始条件，但星系吸积历史略有变化。GM技术的受控实验隔离了不同的组装历史、SMBH反馈实施和星星形成历史的影响，以解开驱动星系形成的复杂动力学过程。PI将与帕萨迪纳的社区学院和Cal Bridge计划合作，每年创建和运行一个为期两周的密集编码暑期学校，包括教授Python编码技能，多种形式的天体物理数据的实际研究经验，以及以STEM为重点的职业讲座。该项目的目标是增加对STEM领域历史上被边缘化的学生的支持和保留。该奖项反映了NSF的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。