CBASS-South: Completing the C-Band All Sky Survey for the Southern Skies

该方案的目标是完成对全天空无线电（5千兆赫频率）强度和极化调查南半部地图的分析（和发布）。这将有助于从宇宙微波背景（CMB）研究中去除污染前景，并将提供有关我们银河系星际介质（ISM）和磁场的信息。 更广泛的影响包括对学生进行仪器仪表培训，与学生进行国际合作，以及针对不同年龄组和文化背景的观众的广泛推广计划。C波段全天巡天（C-BASS）是一种在5 GHz频段对整个天空进行的无线电巡天，其总强度和线性偏振为0.73度，灵敏度约为0.1 mK rms，仪器系统误差的影响最小。该奖项将使C-BASS能够实现其主要目标，即表征ISM的发射机制，确定银河系偏振发射的全天空模板，并允许更准确地分离固有的CMB信号与前景发射，从而使CMB偏振实验能够充分发挥其潜力。宇宙微波背景辐射的偏振由普朗克卫星从太空测量，并由美国国家科学基金会、美国宇航局、能源部和其他机构支持的几个当前和未来的地基和气球实验测量。

The objective of the program is to complete the analysis (and release) of maps of the southern half of an all sky radio (5 GHz frequency) intensity and polarization survey. This will aid in the removal of contaminating foregrounds from Cosmic Microwave Background (CMB) studies and will also provide information about our Galaxy's Interstellar Medium (ISM) and magnetic fields. Broader impacts include training of students in instrumentation, international collaboration with students, and a broad outreach program targeting audiences from a variety of age groups and cultural backgrounds. Members of the proposing team play an important role in the development and execution of these programs.The C-Band All Sky Survey (C-BASS) is a radio survey at 5 GHz of the entire sky in total intensity and linear polarization, with resolution of 0.73 degrees, sensitivity of about 0.1 mK rms, and minimal corruption by instrumental systematic errors. The award will allow C-BASS to fulfill its primary goals of characterizing emission mechanisms of the ISM, determining an all-sky template for polarized emission from the Galaxy, and allowing for more accurate separation of intrinsic CMB signals from foreground emission, thus enabling CMB polarization experiments to realize their full potential. CMB polarization is being measured from space by the Planck satellites, and by several current and future ground-based and balloon-borne experiments supported by NSF, NASA, DOE and other agencies.