论文标题
Fireball-2：飞行准备良好的气球有效载荷以形象形象中间红移呈现
FIREBall-2: flight preparation of a proven balloon payload to image the intermediate redshift circumgalactic medium
论文作者
论文摘要
Fireball-2是一种平流层气球传播的1-M望远镜，该望远镜与紫外线多对象狭缝光谱仪相连，旨在通过其Lyman-Alpha线发射绘制围绕Z〜0.7星系的微弱紫外线发射。这位Spectro-Imager于2018年9月22日首次发行。美国新墨西哥州萨姆纳。由于气球被刺穿，因此飞行突然中断了。该仪器在此高度上只能进行45分钟的科学习得，而不是高于32公里高度的标称8小时。此外，温度气球的形状与满月结合在一起，发现了一个严重的离轴散射光路，直接进入UV科学探测器，比预期的大约100倍。为了准备下一次飞行，除了描述Fireball-2的升级外，本文还讨论了旨在分析乐器最佳性能的曝光时间计算器（ETC）（探索仪器的限制和微妙的折衷）。
FIREBall-2 is a stratospheric balloon-borne 1-m telescope coupled to a UV multi-object slit spectrograph designed to map the faint UV emission surrounding z~0.7 galaxies and quasars through their Lyman-alpha line emission. This spectro-imager had its first launch on September 22nd 2018 out of Ft. Sumner, NM, USA. Because the balloon was punctured, the flight was abruptly interrupted. Instead of the nominal 8 hours above 32 km altitude, the instrument could only perform science acquisition for 45 minutes at this altitude. In addition, the shape of the deflated balloon, combined with a full Moon, revealed a severe off-axis scattered light path, directly into the UV science detector and about 100 times larger than expected. In preparation for the next flight, and in addition to describing FIREBall-2's upgrade, this paper discusses the exposure time calculator (ETC) that has been designed to analyze the instrument's optimal performance (explore the instrument's limitations and subtle trade-offs).
