We present the first Data Release (DR1) from the Hubble Space Telescope (HST) Ultraviolet Legacy Library of Young Stars as Essential Standards (ULLYSES) program, a Director’s Discretionary program devoting approximately 1000 HST orbits to the production of an ultraviolet spectroscopic library of young high- and low-mass stars in the local universe. The science products in this release are combined from individual, extracted and calibrated spectra obtained with the COS and STIS instruments aboard HST. Products are made using both archival HST data and new HST observations obtained through the ULLYSES program. DR1 acts as the first step toward completing a goal of generating a fully public data set for the purpose of enabling, supporting, and stimulating a broad range of transformative astrophysical research.

我们展示了哈勃太空望远镜（HST）的年轻恒星传统遗产紫外线图书馆作为基本标准（ULLYSES）计划的第一个数据发布（DR1），该计划是导演的全权委托计划，致力于将约1000个HST轨道用于制造年轻的紫外线光谱库当地宇宙中的高质量和低质量恒星。此版本中的科学产品是结合使用HST上的COS和STIS仪器获得的单个，提取和校准的光谱组合而成的。产品是使用档案HST数据和通过ULLYSES程序获得的新HST观测值制成的。DR1是朝着实现生成完整的公共数据集这一目标迈出的第一步，以实现，支持和激发广泛的变革性天体物理学研究。