RUI: Exploring the gas-phase properties of MaNGA galaxies

RUI：探索 MaNGA 星系的气相特性

• 批准号: 2205551
• 负责人: Jillian Scudder
• 金额: $ 22.9万
• 依托单位: Oberlin College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 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=2205551&HistoricalAwards=false
• 关键词: RUI; Exploring; gas; phase; properties

Much of the chemical enrichment of pristine gas in galaxies is through stellar mass loss and explosions. Principal Investigator (PI) Scudder will use data from the Sloan Digital Sky Survey Mapping Nearby Galaxies at Apache Point (SDSS-MaNGA) to measure the chemical composition of the gas in galaxies. This work will further our understanding of the growth of galaxies through star formation. The PI will offer academic year and summer research opportunities to undergraduate students at Oberlin College.PI Scudder will use archival integral field spectra from the SDSS-MaNGA survey of 10,000 galaxies to determine spatially resolved gas-phase metallicities. The measurements will be assessed for contamination from emission from an active galactic nucleus (AGN). To obtain a more accurate estimate of stellar enrichment the PI will quantify metallicity indicator systematics and biases through a comparison of different calibration methods.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.

星系中原始气体的化学富集大部分是通过出色的质量损失和爆炸。首席研究员（PI）Scudder将使用Apache Point（SDSS-MANGA）的Sloan数字天空调查映射的数据来测量星系中气体的化学成分。这项工作将通过恒星形成进一步了解星系的增长。 PI将为Oberlin College的本科生提供学年和夏季的研究机会。PIScudder将使用SDSS-Manga对10,000个星系的SDSS-MANGA调查中的档案整体野外光谱来确定空间分辨的气相金属性。将评估该测量值对活性银河核（AGN）发射的污染。为了获得更准确的恒星富集估计，PI将通过比较不同校准方法来量化金属性指标系统和偏见。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛影响的审查标准来通过评估来获得支持的。