Low Frequency Measurements of the Cosmic Microwave Background Radiation

该项目将在1.5 GHz、3.7 GHz、10 GHz和90 GHz四个频率上测量宇宙微波背景辐射(CMBR)的形状。据报道，偏离了黑体光谱，如果得到证实，这将改变我们对宇宙形成方式的看法。南极是这种测量的最佳地点，因为那里极端寒冷，因此大气干燥，而且仪器有能力通过恒定的大气厚度连续观察天空的一部分。对于所选择的无线电频率来说，它也是地球上最安静的地方。该项目还将对大气噪声进行定量测量，这对未来的研究人员将具有重要价值。

This project will measure the shape of the Cosmic Microwave Background Radiation (CMBR) at four frequencies, 1.5 GHz, 3.7 GHz, 10 GHz, and 90 GHz. Deviations from a blackbody spectrum have been reported, which if confirmed would alter our view of how the universe was formed. The South Pole is the best site for this measurement due to the extremly cold, and therefore dry, atmosphere, and the ability of the instruments to view one portion of the sky continuously through a constant thickness of the atmosphere. It is also the quietest spot on earth for the radio frequencies chosen. The project will also make quantitative measurements of atmospheric noise that will be of great value for future investigators.