论文标题
紫外线瞬态天文卫星的科学有效载荷（Ultrasat）
The scientific payload of the Ultraviolet Transient Astronomy Satellite (ULTRASAT)
论文作者
论文摘要
紫外线瞬态天文卫星（Ultrasat）是紫外线望远镜附近的太空播种，具有前所未有的大型视野（200平方英尺）。 The mission, led by the Weizmann Institute of Science and the Israel Space Agency in collaboration with DESY (Helmholtz association, Germany) and NASA (USA), is fully funded and expected to be launched to a geostationary transfer orbit in Q2/3 of 2025. With a grasp 300 times larger than GALEX, the most sensitive UV satellite to date, ULTRASAT will revolutionize our understanding of the hot transient universe, as well从燃烧的银河来源。我们描述了任务有效载荷，光学设计和材料的选择，使我们能够在整个FOV中实现〜10arcsec的点传播功能以及检测器组件。我们详细详细介绍了为抑制带外通量和降低流浪光的实施的缓解技术，包括测量的侦探效率（原型）检测器（原型）检测器以及各种物体的预期性能（限制幅度）。
The Ultraviolet Transient Astronomy Satellite (ULTRASAT) is a space-borne near UV telescope with an unprecedented large field of view (200 sq. deg.). The mission, led by the Weizmann Institute of Science and the Israel Space Agency in collaboration with DESY (Helmholtz association, Germany) and NASA (USA), is fully funded and expected to be launched to a geostationary transfer orbit in Q2/3 of 2025. With a grasp 300 times larger than GALEX, the most sensitive UV satellite to date, ULTRASAT will revolutionize our understanding of the hot transient universe, as well as of flaring galactic sources. We describe the mission payload, the optical design and the choice of materials allowing us to achieve a point spread function of ~10arcsec across the FoV, and the detector assembly. We detail the mitigation techniques implemented to suppress out-of-band flux and reduce stray light, detector properties including measured quantum efficiency of scout (prototype) detectors, and expected performance (limiting magnitude) for various objects.
