The Cosmic Microwave Background Temperature and Galactic Emission at 8.0 and 8.3 GHz

Details The Cosmic Microwave Background Temperature and Galactic Emission at 8.0 and 8.3 GHz The Cosmic Microwave Background Temperature and Galactic Emission at 8.0 and 8.3 GHz

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006apj...653..835s&link_type=abstract

The Astrophysical Journal, Volume 653, Issue 2, pp. 835-842.

Astronomy and Astrophysics

Astronomy

6

Cosmology: Cosmic Microwave Background, Galaxy: General, Instrumentation: Detectors

Scientific paper

We report balloon-borne measurements at 8.0 and 8.3 GHz of Galactic emission and of the radiometric temperature of the cosmic microwave background, the results from the first flight of the ARCADE 2 (Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission) instrument. We find the Galactic free-free emission intensity in the plane to be two-thirds as high as that predicted by a naive extrapolation of 2003 WMAP K-band data, a result consistent with 2006 WMAP findings, and find the Galactic synchrotron emission intensity to be approximately as high as that predicted by a naive interpolation of Haslam all-sky survey and WMAP K-band data. We find TCMB to be 2.90+/-0.12 K at 8.0 GHz and 2.77+/-0.16 K at 8.3 GHz.

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