RUI: Exploring the gas-phase properties of MaNGA galaxies

星系中原始气体的大部分化学浓缩是通过恒星质量损失和爆炸来实现的。首席调查员(PI)斯卡德将使用斯隆数字巡天测绘阿帕奇点附近星系的数据(SDSS-MANGA)来测量星系中气体的化学成分。这项工作将进一步加深我们对星系通过恒星形成而成长的理解。PI将为奥伯林学院的本科生提供学年和夏季的研究机会。PI Scudder将使用SDSS-MANGA对10,000个星系的调查中的档案积分场光谱来确定空间分辨的气相金属。这些测量将评估活动星系核(AGN)排放的污染。为了更准确地估计恒星的丰度，PI将通过比较不同的校准方法来量化金属丰度指标的系统性和偏差。这一奖项反映了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。

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.