标题： 次级度各向异性观测：地面、气球载和空间实验 显示英文标题

标题： SUB--DEGREE ANISOTROPY OBSERVATIONS: GROUND--BASED, BALLOON--BORNE AND SPACE EXPERIMENTS

摘要： 广泛的、精确的宇宙背景辐射温度各向异性成像，在亚度角分辨率下被广泛认为是未来十年宇宙学和天体粒子物理学最关键的目標之一。 我们回顾了此类测量的科学依据，涉及天空覆盖、可达到的灵敏度、混淆的前景辐射成分以及实验策略。 尽管地面和气球实验将提供有价值的结果，但只有经过精心设计的远离地球轨道的空间任务，覆盖宽广的光谱范围，并且观测到天空的重要部分，才能对结构形成机制提供决定性的答案。 显示英文摘要

摘要： Extensive, accurate imaging of the Cosmic Background Radiation temperature anisotropy at sub--degree angular resolution is widely recognized as one of the most crucial goals for cosmology and astroparticle physics in the next decade. We review the scientific case for such measurements in relation with sky coverage, attainable sensitivity, confusing foreground radiation components, and experimental strategies. Although ground--based and balloon--borne experiments will provide valuable results, only a well--designed, far--Earth orbit space mission covering a wide spectral range and a significant part of all the sky will provide decisive answers on the mechanism of structure formation.