标题： CMB映射 第一章：QMAP实验的首次飞行 显示英文标题

标题： Mapping the CMB I: the first flight of the QMAP experiment

摘要： 我们报告了气球载QMAP实验的首次飞行。 该实验旨在对从0.7度到几度的角尺度上的宇宙微波背景各向异性进行制图。 利用该图，我们在多极带从l~40到l~140范围内确定了各向异性的角功率谱。 结果与萨斯卡通（SK）测量结果一致。 频率光谱指数（在低l处测量）与CMB一致，而与银河系同步辐射或自由-自由发射不一致。 讨论了仪器、测量、角功率谱的分析以及可能的系统误差。 显示英文摘要

摘要： We report on the first flight of the balloon-borne QMAP experiment. The experiment is designed to make a map of the cosmic microwave background anisotropy on angular scales from 0.7 to several degrees. Using the map we determine the angular power spectrum of the anisotropy in multipole bands from l~40 to l~140. The results are consistent with the Saskatoon (SK) measurements. The frequency spectral index (measured at low l) is consistent with that of CMB and inconsistent with either Galactic synchrotron or free-free emission. The instrument, measurement, analysis of the angular power spectrum, and possible systematic errors are discussed.