Euclid: ESA's mission to map the geometry of the dark universe
Euclid: ESA's mission to map the geometry of the dark universe
复制标题
欧几里得：欧空局的使命是绘制黑暗宇宙的几何形状
DOI：
10.1117/12.926496
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发表时间：
2012
影响因子：
1.8
通讯作者：
L. Valenziano
中科院分区：
文献类型：
--
作者：
R. Laureijs;P. Gondoin;L. Duvet;G. S. Criado;J. Hoar;J. Amiaux;J. Auguères;R. Cole;M. Cropper;A. Ealet;P. Ferruit;I. E. Sanz;K. Jahnke;R. Kohley;T. Maciaszek;Y. Mellier;T. Oosterbroek;F. Pasian;M. Sauvage;R. Scaramella;M. Sirianni;L. Valenziano
Euclid 是由欧空局开发和运营的星载勘测任务。它旨在了解宇宙加速膨胀的起源。欧几里得将使用宇宙学探测器，通过追踪宇宙几何和结构形成历史的观测特征，来研究暗能量、暗物质和引力的本质。该任务针对两个独立的宇宙学探测器的测量进行了优化：弱引力透镜和星系团。有效载荷由一个 1.2 m 科希望远镜组成，旨在提供大视场。光线被引导至欧几里得联盟提供的两台仪器：视觉成像仪 (VIS) 和近红外光谱光度计 (NISP)。两种仪器均覆盖 0.54 deg2 的大共同视场，能够在 6 年的标称任务中测量至少 15,000 deg2。将介绍该任务的概述：科学目标、有效载荷、卫星和科学操作。我们报告了 Euclid 任务的状态，预计将于 2019 年发射。
Euclid is a space-borne survey mission developed and operated by ESA. It is designed to understand the origin of the Universe's accelerating expansion. Euclid will use cosmological probes to investigate the nature of dark energy, dark matter and gravity by tracking their observational signatures on the geometry of the Universe and on the history of structure formation. The mission is optimised for the measurement of two independent cosmological probes: weak gravitational lensing and galaxy clustering. The payload consists of a 1.2 m Korsch telescope designed to provide a large field of view. The light is directed to two instruments provided by the Euclid Consortium: a visual imager (VIS) and a near-infrared spectrometer-photometer (NISP). Both instruments cover a large common field of view of 0.54 deg2, to be able to survey at least 15,000 deg2 for a nominal mission of 6 years. An overview of the mission will be presented: the scientific objectives, payload, satellite, and science operations. We report on the status of the Euclid mission with a foreseen launch in 2019.