ARCADE: Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission

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.

12 pages, 6 figures. Proceedings of the Fundamental Physics With CMB workshop, UC Irvine, March 23-25, 2006, to be published in New Astronomy Reviews

References in corpus (6)

• Reionization of the Universe and the Early Production of Metals
• Signatures of Stellar Reionization of the Universe
• Neutralino annihilation into gamma-rays in the Milky Way and in external galaxies
• Observational Signatures of the First Luminous Objects
• The Temperature of the CMB at 10 GHz
• An Instrument to Measure the Temperature of the Cosmic Microwave Background Radiation at Centimeter Wavelengths

Cited by in corpus (16)

• Features and New Physical Scales in Primordial Observables: Theory and Observation
• A Test of the Copernican Principle
• Teasing bits of information out of the CMB energy spectrum
• CMB spectral distortions from small-scale isocurvature fluctuations
• Prospects for Measuring Cosmic Microwave Background Spectral Distortions in the Presence of Foregrounds
• A Hydrodynamical Approach to CMB mu-distortions
• The observational signature of the first H II regions
• TRIS I: Absolute Measurements of the Sky Brightness Temperature at 0.6, 0.82 and 2.5 GHz
• The Cosmic Microwave Background: The history of its experimental investigation and its significance for cosmology
• Cosmic Strings from Supersymmetric Flat Directions
• Pre-recombinational energy release and narrow features in the CMB spectrum
• Refined approximations for the distortion visibility function and mu-type spectral distortions
• What Can the Cosmic Microwave Background Tell Us About the Outer Solar System?
• The cosmological free-free signal from galaxy groups and clusters
• New Horizons in Cosmology with Spectral Distortions of the Cosmic Microwave Background
• Measuring and calibrating Galactic synchrotron emission