ARCADE: Absolute radiometer for cosmology, astrophysics, and diffuse emission |
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| Authors: | A. Kogut D. Fixsen S. Fixsen S. Levin M. Limon L. Lowe P. Mirel M. Seiffert J. Singal P. Lubin E. Wollack |
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| Affiliation: | aNASA Goddard Space Flight Center, Code 685, Greenbelt, MD 20771, United States;bScience Systems and Applications, Inc., Goddard Space Flight Center, Code 665, Greenbelt, MD 20771, United States;cJet Propulsion Laboratory, Pasadena, CA, United States;dUniversity of California at Santa Barbara, CA, United States |
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| Abstract: | ![]()
The absolute radiometer for cosmology, astrophysics, and diffuse emission (ARCADE) is a balloon-borne instrument designed to measure the temperature of the cosmic microwave background at centimeter wavelengths. ARCADE searches for deviations from a blackbody spectrum resulting from energy releases in the early universe. Long-wavelength distortions in the CMB spectrum are expected in all viable cosmological models. Detecting these distortions or showing that they do not exist is an important step for understanding the early universe. We describe the ARCADE instrument design, current status, and future plans. |
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| Keywords: | Cosmology Cosmic microwave background Instrumentation |
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