Characterizing the Physical Properties of High-redshift SN Ia Host Galaxies

该计划的目标是使用暗能量巡天（DES）超新星样本来研究超新星候选者的光度分类（即根据超新星在不同光波长下的表现对超新星进行分类），并研究超新星亮度与宿主星系性质之间的相关性。大样本将使系统的不确定性的详细研究，由于广泛的观测超新星的属性和环境，他们爆炸，导致改进测量宇宙的膨胀历史。 这项工作的更广泛影响包括培训本科生和研究生。 PI还将与高年级本科生合作，创建新的课堂演示和结构化学习活动，这将有助于改革宾夕法尼亚大学的物理入门课程。

The goal of this program is to use the Dark Energy Survey (DES) supernova sample to study photometric classification of supernova candidates (i.e. classifying supernovae based on how they appear at different wavelengths of light) and to study correlations between supernova brightness and host galaxy properties. The large sample will enable detailed studies of systematic uncertainties due to the wide range of observed supernova properties and the environment they explode in, leading to improved measurements of the expansion history of the Universe. Broader impacts of the work include training of undergraduate and graduate students. The PI will also work with advanced undergraduate students to create new in-class demonstrations and structured learning activities that will help reform the introductory physics classes at Penn.