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ARCADE Detection of an Extragalactic Radio BackgroundSometimes when we look for one thing we stumble on something else. The Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission (ARCADE) was designed to measure the blackbody spectrum of the cosmic microwave background to search for spectral distortions related to the epoch of reionization. Instead, the July 2006 flight found evidence for an extragalactic radio background with amplitude six times brighter than the expected contribution from faint radio sources. The author discusses the ARCADE instrument and the evidence for an extragalactic radio background.
Document ID
20090012390
Acquisition Source
Goddard Space Flight Center
Document Type
Presentation
Authors
Alan J Kogut
(Goddard Space Flight Center Greenbelt, Maryland, United States)
Date Acquired
August 24, 2013
Publication Date
January 20, 2010
Subject Category
Space Radiation
Meeting Information
Meeting: Talk at the American Center for Physics
Location: College Park, MD
Country: US
Start Date: January 20, 2010
Sponsors: American Institute of Physics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
Extraterrestrial radiation
Radio astronomy
Extragalactic radio sources
Background radiation
Radiometers

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